The Future of Garlic Farming: Modern Methods Revealed

Garlic is one of the most crucial export crops after onions. Garlic is grown in Egypt on an area of about 32,000 feddan (one feddan equal to 4200 m2) annually.

Egypt is considered one of the most essential countries globally, ranking among the garlic-producing countries after China, South Korea, and India. Egyptian garlic is exported to many countries in green garlic (incompletely ripe) and fully ripened garlic or other forms (dry garlic-garlic oil).


The purpose of garlic cultivation in Egypt
Garlic is grown in Egypt for two primary purposes:
  • The first is the production of green garlic for export.
  • The second is the production of mature heads for local consumption, the purpose of export, or both.
Garlic Farming


Varieties and strains of garlic spread in Egypt

1- Egyptian garlic (Baladi):

It is a cultivar that has been cultivated in Egypt since ancient times. Its long plants reach more than 100 cm in length. Its leaves have a narrow blade and a small head. It has many small lobes, reaching in some heads up to 60 lobes-early ripening, pungent smell and taste of the cloves, and a large crop suitable for storage.

This variety has decreased in cultivation due to the small size of its cloves. The demand for it from the local and international markets has become so rare that six homes do not prefer it because the cloves are small and difficult to peel.

2- Chinese garlic:

This variety was imported in the early sixties and had desirable exports.

Specifications: the number of lobes in the head was in the range of 5-15 lobes, the lobe size was large, and the outer shell of the lobe had a crimson color.

The productivity per acre ranged from 10 tons to 5 tons, and the number of cloves per head was 20. In addition, the small size of the cloves led to the reluctance of importing countries.

Foreign markets, especially European markets, import such quality goods.

3- Sids 40:

Due to the deterioration of the Chinese garlic variety, the researchers of the Horticultural Research Institute implemented a selection program within this variety, the result of which was to obtain the 40-sixth garlic strain, which is characterized by large cloves and low in the head, where the average number of cloves in the head is about 13 lobes and the average weight of the clove is 7.5 g head color Dark Violet The per feddan productivity is estimated at 11-12 tons, which is the required variety locally and globally so far, whether in the form of green garlic or fully ripened garlic.

4- Egasid 1:
It is one of the high-productivity varieties the company EGASID produces, and its lobes are significant. However, it is defective in forming a light holder with bulbs (small-sized lobes) at its end. It is not widely spread in Egyptian agriculture.

5- Egasid 2:

It is a variety of garlic produced by EGASID Company as well. The company mentions that this variety is characterized by its large size and

The strength of vegetative growth is that the head has 13 lobes and 13 cloves, and the producing company claims its yield is 50% more than the rest of the other varieties.

Environmental conditions necessary for garlic growth and production

1- Weather conditions:

Garlic needs a moderate atmosphere that tends to heat when planting, which helps to speed up germination (less than 25 degrees Celsius), then to a relaxed, moderate atmosphere in its first stages of growth (13-24 degrees Celsius).

It is noted that the growth of garlic plants at this stage is slow for about two months, and then vegetative growth accelerates after that. It was also observed that the emergence of new leaves of the plant stopped at the beginning of the formation of the head, which often begins to form after 90 days of the plant's life. It is necessary to be early in the planting date to give the plant enough time to produce an excellent vegetative total and then produce large-sized heads. Delaying garlic planting also makes plants susceptible to garlic rust disease.

2- Soil Conditions:

Garlic can be grown in all types of lands, provided that the land is free of weeds and weeds that compete with garlic plants. Food is rich in soft nutrients necessary for plant growth. Garlic has a pH of 6.8 to 7.2. Garlic should not be planted in lands affected by white mold, as well as Saline lands, which have a salinity concentration of more than 1500 parts per million, and heavy lands with very little cohesion that are not taken care of by fertilizing them with organic fertilizers.

*** The results of one of the experiments carried out by El-Zohairi (2009) showed that the cultivation of garlic under irrigation conditions with saline water at a concentration of zero, 1500, 3000, 4500, and 6000 parts per million led to a negative impact of the growing garlic plants by increasing the salinity concentration of the irrigation water more than 1500 parts.

At the same time, spraying with salicylic acid (aspirin) at a concentration of 100 parts per million improved the growth of garlic plants under salinity conditions. However, this good effect of salicylic acid did not significantly impact the increase in the concentration of salts in the irrigation water up to 6000 parts per million.

On the other hand, irrigation with saline water at a concentration of 1500 ppm was superior to irrigation with regular water in the volume of vegetative growth and the resulting head sizes.

Planting time of garlic:

The planting date varies according to several factors, including: -

1- The purpose of cultivation (producing green garlic or producing heads of garlic):

Planting garlic to obtain green garlic requires planting as early as possible to obtain large-sized plants with good heads to achieve the highest financial return from the unit area. Several procedures must be followed to achieve this goal, as will be explained later.


2- The cultivated variety: -

Municipal garlic can be planted earlier than other varieties by about two weeks, as it is faster to germinate, and its cloves are not exposed to mold in hot weather. In contrast, other varieties need a more extended period for germination, which may expose them to mold and lower their germination rate.

3- The prevailing weather conditions in the area:
Garlic needs a high temperature in the germination stage. However, if the temperature is very high in a particular area, the planting date will be delayed until the weather conditions improve. For example, garlic cultivation is delayed about two weeks in Upper Egypt compared to Lower Egypt due to the high temperature in Upper Egypt.

*** Through

Scientific research conducted by el-Zohairi and Awni (2014), it was found that garlic cultivation on September 25 outperformed the other sowing dates (October 10, October 25, and November 10), as the first planting date of September 25 recorded the lowest period for clove germination, while it recorded November 10 is the most extended germination period, while it was found that the Baladi garlic variety is the fastest growing compared to one-sixth of 40.

The planting date on September 25 recorded the highest values, both in the vegetative growth stage or in the onion traits, as well as the quantity and quality of the resulting crop.

The following table shows the planting dates according to the variety and the area in which it is planted. It notes that any delay from the planting date mentioned in the table is offset by a decrease in the crop, and the percentage of crop shortfall increases with the increase in the number of days of delay from the appropriate planting date until it reaches more than 50%.

A table showing the dates of garlic cultivation in each of the garlic cultivation areas


specifications of good garlic seeds:

- It should represent the variety to be planted and not mixed with other varieties.

- Obtain seeds from a reliable source and refrain from buying them from the markets. It is also forbidden to purchase Chinese white garlic that is sold in the supermarket and to plant it, as it is not given heads or cloves due to the different weather conditions in the country of origin than in Egypt.

- The seeds should be free from insect and disease pests such as base rot or white rot.

- The heads should be regular in shape and large in size.

- The discharge rate is as low as possible.

The heads are intended for seed and not for consumption, as each has specific storage conditions. The temperature of storing garlic seeds affects productivity.

The lesson is not the size of the head but the size of the planted lobe. Large heads may have a large number of lobes, but the lobes are small. The small lobe produces a weak plant, and the head resulting from a weak plant will never be equal to the head resulting from the plant produced from a large lobe, even if it is composted in very high quantities of all fertilizers.

Amount of seeds needed to plant a Feddan (4200 mitre):

Dear garlic grower, you should know that garlic seeds cannot be sold separately for matters related to the vitality of the fetus and the percentage of germination and discharge, but rather, they are in full thrones. Therefore, the amount of seeds needed to grow an acre determines their quantities on this basis (whole garlic on the throne), and in general, it can be said that the amount of seeds needed to grow an Acre varies according to the type of soil, the prevailing irrigation system and the type of cultivation (loading on other crops, small trees, or monoculture) according to the following table:




Cultivated

 variety


 Region


          planting date



Baladi



Delta
Nile



 early
September to mid-September



Upper
Egypt



 Mid-September
to early October


Sids 40


Delta
Nile



 Mid-September
to early October



Upper
Egypt



 From
the beginning of October to the end of October



Egasid 1, 2



Delta
Nile



 From
early October to mid-October



Upper
Egypt



 Mid-October
to the end of October






Number of seeds for planting:
Garlic seeds are prepared in two successive stages as follows: -

 

The first stage of preparing seeds for planting:


In it, the dry thrones are cut. Garlic is cut so that each clove is separate while avoiding leaving two cloves sticking together, as this leads to the germination of two plants in the same hole, creating competition over the place and food. Not only this, but their marketing qualities decrease. On the other hand, the cutting of the seeds should be a few days before planting and does not exceed a week at most, as the early cutting of the garlic heads leads to a decrease in the vitality of the cloves and a decrease in the percentage of their germination as a result of the rapid depletion of part of the food around the fetus. It is also taken into account to exclude the broken, rotten, and insect-infested lobes, the lobes contrary to the variety, and the minimal lobes in size, especially in the municipal variety.


The second stage of preparing seeds for planting:


This is done on the night of planting and is not done before that, where garlic seeds are soaked in water for 12-16 hours for the strain 40-sixth and EGAS 2.1, while the garlic cloves are soaked for no more than 12 hours only so that the cloves are not exposed, after soaking the cloveswashing water, extracted and filtered, the cloves are soaked in an antiseptic solution for 20 minutes. The solution consists of the pesticide Ridomil at a rate of 50 g per liter of water. After soaking, the disinfectant solution is filtered and spread on a mattress until it dries a little. The disinfectant sticks to it so the seeds are ready for planting directly in the ground.


Research carried out by El-Zohairi et al. (2014) found that soaking garlic cloves before planting them in a solution consisting of some microelements at concentrations (800 ppm zinc + 600 ppm manganese + 400 ppm copper) increased their growth characteristics. Significantly, the size of the head should be increased in length and width, and the average weight of the lobe and the total yield should be increased.


 preparing the land for planting garlic:


First: In the lands of the valley and the delta:

The land is thoroughly plowed twice, each perpendicular to the other, to dismantle and ventilate the soil well and remove weeds. Municipal fertilizer and superphosphate fertilizer should be added between the first and second plowing so that the old municipal fertilizer is wholly decomposed and free of weed seeds. It is forbidden to add sheep and goat manure in garlic fertilization. Animals often feed on weeds and herbs, and their waste contains live weed seeds that can germinate at a high density, as the weed seeds are not digested inside the stomachs of these animals. However, the seeds can germinate and grow.

 

Fertilizer additives while preparing the land for planting:


In the lands of the valley and the Delta Nile, 20-25 m 3 FYM + 3-4 bags of calcium superphosphate (150- 200 kg) + 150 kg of yellow sulfur are added all during the preparation of the land for cultivation the municipality, taking into account burying the compost underground and within reach of the roots of plants that are scheduled to be planted later. The ground crawls and plots at a rate of 12 lines in the two reeds in the case of planting on two feathers or at a rate of 14 lines in the two reeds in the case of planting on one feather. Then, the lines are cleared and smoothed.


 Second: Preparing sandy and newly reclaimed lands for agriculture:

The sandy lands are prepared by conducting the plowing process to remove the existing weeds and then adding municipal compost or compost as well as superphosphate fertilizer and agricultural sulfur when preparing the land for planting and stirring it well in the soil, in the case of establishing lines or terraces, and in the case of planting in lines, deep sewers are made. The compost is buried in Baladi or poultry manure and settled in the soil.


Fertilizer additives and their benefits for sandy lands:

 

Municipal fertilizer is added at a rate of 35-40 m3 / feddan or Compost at a rate of 20 m3 / feddan in addition to 5 m3 / feddan of poultry broth, if available + 3-4 bags of calcium superphosphate per feddan + 150 kg of agricultural sulfur / feddan while Preparing the land for planting, with the need to stir these fertilizers well with the soil. It is preferable to make deep sewers in the middle of the lines or terraces, put the organic fertilizer in them, and bury them.


 Benefits of organic fertilizer for sandy lands:

 Organic fertilizer helps to increase the cohesion of sandy soil granules, improve their construction, and enhance the ability to retain water and nutrients necessary for plant growth. It also has a significant role in increasing the soil content of the elements needed for plants, such as Nitrogen, phosphorous, potassium, and manganese, so these elements move from the soil in the long run. In which the plant remains in the soil to plants. Organic fertilizers contain a large proportion of antibiotics, which, of course, has led to an increase in the growth of plants, and it also helps to eliminate fungi that harm agriculture. Organic fertilizer contributes to the disposal of many types of toxic compounds that harm plants and weaken agriculture, such as lead and cadmium.


 * The method of planting cloves in the ancient lands:

It is possible to follow the traditional method prevalent in the Egyptian countryside so far by irrigating the land immediately before planting. When the lines are saturated with water, the workers plant the cloves on one side of the line in the case of planning at a rate of 14 lines/2 s or on both sides of the line in the case of planning at 12 lines/ 2 s. This method is usually carried out in small areas.  


Disadvantages of this method:

It requires a large number of labor and also requires the presence of some water in the ducts of the lines so that the worker can rinse his hand with which the clay is stuck after planting each lobe in the ground, in addition to the difficulty of hoeing later as a result of the workers pressing the soil granules when performing the cultivation process. The land can be irrigated as a pile, and when it has a moisture content, it allows the passage of agricultural workers. Before it dries up too much, the cloves prepared for cultivation and previously soaked in water and micron sulfur at a distance of 10 cm between the lobe and the other are planted on one or two blades according to the rate of planning and provided that it is More than two-thirds of the lobe in terms of its base is below the surface of the soil, and less than one-third of it is above the surface of the soil. The land is irrigated immediately after planting is completed.   


 Cultivation in dry land is done directly with garlic seeds soaked in water and disinfectant solution, using the fingers of the hand directly, but this requires that the soil granules be smooth or use wedges or beaks. For fine soil, bear in mind that there is little difference between this method and the cultivation method in the presence of water.  

 

Features of this method:

 

 It is the speed of completing the cultivation process quickly without obstacles. However, the disadvantage of this method is that it requires well-trained labor to control the distances and depth of cultivation.

 

* Cultivation of garlic in sandy lands and newly reclaimed lands has three methods, namely: -

After adding the organic fertilizers and stirring them well in the soil, terraces with a width of 100 cm are made. Irrigation hoses are placed along these terraces so that there are two or three hoses on each terrace, and the distance between the hose and the other is 30-50 cm. The hose is 15 cm away from the edge of the terrace, and garlic is planted on both sides. 


Each hose alternately at a distance of 10 cm between the lobe and the other and a distance of 15 cm from the edge of the terrace on both sides, taking into account that the entire lobe is planted in the ground so as not to be exposed to drought, as the sandy soil loses its moisture faster than the clay soil and the cultivated lobes may be exposed to drought. It is also possible to make lines 50 cm wide only with one hose for irrigation, following the exact planting distances as before.  

 

In the case of well-leveled sandy lands, it is possible to plant in lines without the need to make terraces, where the hoses are placed at a distance of 50 cm from each other and garlic cloves are planted on both sides of the irrigation hoses and at a distance of 10 cm from the hose and the distance between the lobe and the other is 10 cm. The cloves are mutual (Crow's man) on both sides of the hose, and the lobe is planted well in the soil so that its base is down and its top is up and at the soil surface level.  


Before planting sandy lands, it is taken into account that the land is fermented for at least 20 hours to wash the salts, and 10 liters of sulfuric acid/acre should be injected in batches to wash away harmful salts and reduce the degree of PH Soil and for ease of planting cloves. Also, please take into account the installation of irrigation hoses by wire in the form of the letter V at a distance of a meter to a meter and a half so that the wind does not move it from its place, which leads to the failure to irrigate the lobes and then not to germinate, or the seedlings wither and die as a result of thirst.


 Automatic cultivation of garlic:  

It is known that garlic cultivation is one of the costly operations due to the high wages of agricultural labor, and labor may be scarce or few, as is the case in new lands, which necessitates the need to work on introducing garlic cultivation technology by machines, but this requires conditions, the most important of which are: -

- The area to be cultivated should be large or small areas combined

-The ground should be sandy or light yellow.

- The ground should be completely flat, and the laser can be used in the leveling operations.


- Training technical cadres to operate agricultural machinery until cultivation is carried out at a fixed depth and regular agricultural distances between plants and between the lines of cultivation to ensure the optimum number of plants per acre, achieving the highest yield with good specifications. There are two-row, three- ---, and four-row garlic cultivation machines, but they are fed manually, meaning each row has a chair on which the worker sits to feed the machine manually. The production capacity of this machine is in the range of 1.25-1.5 acres per day.

 

  There are also fully automatic machines that do not require labor, but their daily production capacity is also low. Their specifications are as follows: Planting depth is adjustable—from 20 mm to 160 mm max. 


  Dimensions: (length/width/height) 2000 / 1300 / 950 mm.

 Weight 110 kg Adjustable row spacing - from 300 mm to a maximum of 400 mm The distance between the seeds has multiple options from 65 mm to a maximum of 200 mm Production capacity 0.2 hectares per day Suitable for growing green onions, garlic and beans, as you need a tractor to operate it as shown in the following figure:-

  

 In this picture, a machine consisting of three rows of post-transplant service operations shows a model of a mechanically farmed land.

      

1. Irrigation of garlic : 

 

Usually, the land is irrigated immediately after planting, even if it was irrigated earlier for cultivation, whether in the old lands (the valley and the delta) or the sandy and newly reclaimed lands. At the level of humidity (80%) to the extent that guarantees good germination while avoiding the exposure of plants to water stress during their growth. 


In the case of surface irrigation by immersion and heavy yellow lands, it is preferable that the irrigation be done on cold so that the lobes are not washed away with irrigation water and until the water reaches the lobes softly in the case of cultivation on Lines. It is preferable to give the eraser irrigation after about 4-7 days of planting irrigation to help complete germination well and for the stability and success of the seedlings.


 Irrigation is done every 3-4 days, then every 5-7 days, and then every 7-10 days so that the soil does not crack and cause damage to the seedlings. After that, irrigation must be regular according to the condition of the plant, type of soil, irrigation method, and weather conditions; irrigation before rooting plants should be from 7 to 10 days in sandy lands and from 15 to 21 days in heavy lands.

 

 Irrigation in sandy and newly reclaimed lands:

 In it, drip irrigation or spraying is carried out, as irrigation depends on the nature of the soil, the extent of its water retention, and the weather conditions prevailing in the region. In some areas, irrigation may reach irrigation several times daily, daily, or day after day. Pre-harvest Irrigation is prohibited for 7-10 days in sandy lands.


In the case of cultivation under the sprinkler irrigation system, the land's field capacity must be maintained up to 80% in the area of ​​seed germination until the germination is complete. After that, the water is gradually reduced so mold or fungal diseases do not spread among the plants. Irrigation should be done early in the morning or evening after low soil temperatures.

 **

 * Remember that reducing irrigation rates below the appropriate rate causes poor vegetative growth.

The increase in irrigation water leads to an increase in the spread and severity of fungal diseases, with no benefit from added fertilizers and a decrease in the ability to handle them.


1- Perform the patching process:

Absent lobes can be replanted after about 25 days with the same type of seed, and the lobes must be soaked in water before planting for a period commensurate with the cultivated variety.

 

2- Weed control:

Weeds play an essential role in transmitting diseases and insects. In addition to competing with garlic plants in the food and place, weed resistance in garlic fields is necessary for a good crop with good export specifications. Neglecting the weed control process will not be in the interest of garlic plants because they are weak and thin. At the beginning of their life, they cannot compete with the weeds growing in high density.


Weed control is divided into:


A- Manual control:  

Manual control begins with a solar sterilization process by covering the soil after

 irrigation with transparent plastic for 4-6 weeks before planting or hoeing, where the ground is hoped after the integration of germination several times to get rid of weeds, provided that the first hoe is scribbled only not to affect the roots of young plants. Growing weeds can be reduced by following an agricultural cycle, good plowing, and not adding organic fertilizers contaminated with weed seeds, such as sheep and goat waste fertilizers.


A- Chemical weed control:  

Control of broad-leaved and narrow-leaved annuals.

 According to the Ministry of Agriculture's recommendations (approved recommendations to combat agricultural pests 2017), spraying is carried out with one of the following pesticides: onions.


1. After preparing the land, planning, planting, and irrigating it directly, spray the ground with Stomp an Extra 45.5% CS at a rate of 1.5 liters per acre.

2. Spraying with stung insecticide 33% EC at a rate of 2.5 liters/acre of sprinkler per year after 21 days of planting.

3- Spraying with Omega 33% EC At a rate of 2 liters/acre.

4- Oxyphene 24% at a rate of 750 cm 3 per feddan.     

5- Joule 4F 48% 400 CS cm 3 per feddan.


Annual grass weeds can be controlled with one of the following pesticides: -

 

1- Galant Super 10.8% EC at a 200 cm 3 / feddan rate, sprinkled annually after 21 days of planting.

2- JIACO 10.8% EC at a rate of 650 cm 3 / feddan, sprinkled annually after 21 days of planting.


4- Fertilization:

Garlic is one of the least absorbent plants of nutrients due to its limited number, shallow roots, and lack of deep roots in the soil. Therefore, it is vital to implement a fertilizer program adapted to these conditions in order to help achieve an ideal crop. The fertilizer additions must be as close as possible to the root area so that they are in the soft image of the roots. 


It is worth noting that Nitrogen and potassium are two of the elements that garlic needs in relatively large quantities. Like nitrogen, most phosphorous is required at an early stage in the plant's life to ensure good root growth and promote its establishment. Potassium is essential as it involves the addition of high rates of Nitrogen. Adding potassium maintains plant productivity by increasing dry matter and the accumulation of sugars in the head.


 The importance of the nutrients of the garlic plant:

 

Nitrogen:

One of the significant elements that are very important for plant growth and its deficiency in the soil leads to weak and slow growth, yellowing of the lower leaves, and the small size of the bulbs formed. Increasing it more than the plant needs leads to many problems, including increasing the thickness of the petioles and lowering their quality, high incidence of diseases, and increased content of bulbs and lobes of water, Which leads to a decrease in its storage capacity.


 Phosphorous:

Phosphorous is one of the essential elements to increase the percentage of roots and then absorb other nutrients with high efficiency, which is reflected in plant growth and increased productivity. Therefore, phosphorous must be available for young seedlings, as it was found that the benefit of plants in the early ages is enormous.

Potassium :

Potassium is one of the critical elements in creating water balance within the plant. It is also considered the engine for transporting nutrients from the leaves to the storage places (heads), and the lack of this element leads to the small size of the resulting heads with low storage qualities.

Magnesium:

It is central to the chlorophyll molecule and is essential throughout the growth of the garlic crop.

Sulfur:

Sulfur is an essential element in the production of garlic. It is responsible for the distinctive taste of the cloves, and the garlic plant needs it in abundance during the stage of forming the heads.

 

Micronutrients:

Boron, iron, and zinc are the most critical micro-elements for feeding garlic plants. Adding zinc to the water used to soak the cloves before planting them accelerates and improves the germination rate. Boron and iron are also essential and affect the quantity and quality of the crop.


Soil acidity and its effect on the affordability of plant nutrients:

The following figure shows the degree of soil pH and its impact on the availability of nutrients. The previous figure shows that each of the nutrients for the plant has a specific pH, which makes it easy and suitable for absorption by the roots of the plant. In an appropriate amount when the soil pH is neutral (PH7).

The forms and quantity of added fertilizers in each fertilizer batch, as well as the method of adding them according to the irrigation method followed, are as follows: -


First, fertilizing garlic in the old lands (the valley and the delta):

In such lands, the method of surface irrigation by immersion is the method used in irrigating all field and horticultural crops, including garlic, and the following table shows the dates of adding different fertilizers and the quantities of their additions: -




Amount of fertilizer needed per acre



Addition dates



20-25 mfully decomposed old municipal fertilizer +3-4 bags of calcium superphosphate + 150 kg of agricultural sulfur, all added before
The last plow stirred well in the soil.



Soil preparation and preparation for planting



Add 2 sachets of ammonium sulfate (20.5%) /feddan



The first batch: added after the germination is complete



Add 2 sachets of ammonium sulfate (20.5%) / feddan


A sack of potassium sulfate per acre (50 kg/ acre) is also added.


The second installment to be added after the first month



In it, 2 sachets of ammonium sulfate are added (20.5%) / per feddan (4200 m2)


Half a bag of potassium sulfate per acre (50 kg/ feddan) is added.


The third payment to be added after the second month



Add potassium sulfate sack per feddan (50 kg)



Fourth installment: to be added after the third month



Minor elements should be added by spraying on garlic plants at a rate of 3-4 times throughout the plant's stay in the ground (zinc - manganese - copper - boron - iron), approximately once every 45 days.



Taking into account adding a diffuser with the spray solution for foliar fertilization and controlling insects and pests, garlic leaves have a waxy layer that prevents the solution from sticking to the leaves. Adding this substance to the spray solution is also forbidden in the case of optional herbicides.




Fertilization in sandy and newly reclaimed lands:

Sandy lands have wide pores that do not retain water and do not absorb nutrients on their granules. Therefore, modern irrigation methods are followed in such lands, such as drip irrigation, sprinkler irrigation, and pivot irrigation.

The following table shows the quantities of fertilizers added to each irrigation system during the week.


Preparing the land for cultivation

Municipal fertilizer is added at a rate of 35-40 m3 or industrial organic fertilizer at a rate of 20 m3 in addition to 5 m3 of poultry broth if available + 150 - 200 kg calcium superphosphate + 150 kg agricultural sulfur / feddan during the preparation of the land for cultivation with the need to turn these fertilizers well in the soil

plant age

the week

ammonium nitrate (kg)

potassium sulfate (kg)

Acid Phosphoric (liter)

Sulfate Magnesium (kg)

elements Minor (kg)

After the integration of

germination

1

10

5

3.5

2

200    

2

15

5

3.5

1.5

200    

3

20

5

3.5

1.5

200    

4

20

5

3.5

1.5

200    

Up to 60 days from planting

1

30

5

4

1.5

200     

2

30

5

4

1.5

200     

3

30

5

4

1.5

200     

4

30

5

4

1.5

200     

Up to 90 days from planting

1

40

10

5

1.5

200     

2

40

10

5

1.5

200     

3

40

15

5

1.5

200     

 

 

 

 

 

 

 

4

40

15

5

1.5

200     

up to 120 days from planting

1

20

15

3.5

1.5

200     

2

20

15

3.5

1.5

200     

3

20

20

3.5

1.5

200     

4

20

20

3.5

1.5

200     

Up to 150 days from planting

1

10

20

3.5

1.5

200     

2

10

20

3.5

1.5

200     

3

10

30

3.5

1.5

200     

4

10

30

3.5

1.5

200     

Up to 180 days from planting

1

10

20

2

1

-      

2

-

20

2

1

-     

potassium sulfate spray

-

3

-

-



The following table shows the quantities of fertilizers added per cubic meter of water. Therefplant's water needs must be determined according to the soil's nature the soil and the area in which it is cultivated. The quantities of water added in each irrigation can be determined according to the meteorological data in the cultivation area.

Adding fertilizers to sandy soil, grams per cubic meter of water:
Micronutrient elements and their added quantity per cubic

meter of irrigation water


Element



Addition concentration per cubic meter of irrigation water



chelated iron



15 g/m3 water



zinc



5-6 g/m3 of water



manganese



5-6 g/m3 of water



Boron



0.015 - 0.02/m3 water



molybdenum



0.10 - 0.15 g/m3 water



copper



0.15-0.2 g/m3 water



 
The mixture of micro-elements should be added to the sandy lands once a week.

*The average droplet discharge can be calculated straightforwardly and does not require much experience by placing three containers at the rate of one container under each point, provided that the first container is at the beginning of the line, the second in the middle, and the third in the end, and the time is calculated. 

Then, the quantities of water collected from the dots are collected three and divided by their number to be the average discharge points per hour and by multiplying the amount of water generated from the average of the three points by the number of points in the irrigation sector or an acre, the amount of water discharged from the droplets in one hour is known and according to the quantities of water needed by the plant according to weather conditions and soil type Determine the number of hours of irrigation and then add fertilizer accordingly.

Signs of maturity and harvest:


The ripening date depends on several factors, including the variety. For example, municipal Garlic ripens earlier than other varieties by about two weeks. The planting date affects the ripening date by a small percentage. There is a well-known saying that the date of garlic harvest is the same, even if the planting dates differ, the soil type. Garlic grown in sandy lands ripens faster than Garlic grown in muddy lands; climatic conditions, prolonged lighting, and high temperatures accelerate the process of pouring the heads and then speeding up their maturity as well as agricultural operations and their efficiency may affect in one way or another the harvest dates, for example, spraying plants with a high concentration solution of potassium or urea accelerates the drying of arbors.

Maturity signs:

When plants reach maturity, they show several signs that can be easily distinguished, including: -

1- It must have been planted for 6-7 months.

2-The Yellowing and bending of the leaves are not due to disease but physiological yellowing that indicates maturity.

3- Curvature of the neck area towards the ground, especially in the soft-necked varieties such as the Baladi variety.

4- Mature bulbs are characterized by being covered with a dry outer shell and easy to separate.

5- The hardness of the cortex covering the lobes.

When signs of yellowing appear on 75% of the plants, irrigation should be stopped immediately, and additional irrigation should be avoided. Irrigation at this stage leads to black spots on the heads and thus reduces their commercial qualities.

Garlic harvest:

The harvesting process occurs after weaning or preventing irrigation for a certain period. This period is commensurate with the type of soil. For example, the weaning period in sandy lands does not exceed 7-10 days and can extend for 20-25 days in clay lands due to its moisture retention for an extended period. Manual harvesting is often prevalent in Egypt, and this is done by using iron pegs with pointed tips inserted near the heads to uproot them without causing scratching or damage to their tissues.

Disadvantages of early harvesting garlic:

Some garlic growers resort to early harvest before maturity is complete, hoping to benefit from the high price during this period. However, the heads are immature and cannot be stored for long periods, in addition to their significantly reduced weight after drying.

Drying treatment of the bulbs:

After harvesting the crop and excluding the infected or broken heads, the drying treatment process is carried out directly by placing Garlic in saddles on dry ground and under direct sunlight so that it covers the throne of each swayed head of the neighboring sewage and covers the edges of the saddles with rice straw to protect the heads from direct sunlight and leave for two weeks with modification Position the trowels every four days to prevent the spread of mold in them, in addition to raising the efficiency of the drying treatment process.


Usually, the heads lose about 35-40% of their weight during this stage. After that, the crop is transferred to a well-ventilated and shaded place for about another week to complete this process, and then the crop is sorted once Others and excludes all injured and broken or non-conforming to the specifications.

Storage of garlic:

1- Storage in non-refrigerated warehouses:

Garlic is packed after the drying process, making sure that the plants are dry in mesh bags. It is then stored in clean warehouses free of insects and store diseases so that it is entirely isolated from the effects of external climatic factors, with good ventilation and appropriate humidity. 

Garlic can be stored for up to eight months in regular and unrefrigerated stores. The high temperature inside the garlic stores leads to a speedy emptying of the heads, as the high heat increases the speed and rate of breathing in Garlic, thus turning the carbohydrates in the cloves into sugars for use in breathing. Storing less than 70% leads to the spread of diseases and root growth.

2- Storage in cold stores:

Ripe and well-treated Garlic can be stored after harvest for 6-7 months at 0°C and 60-70% relative humidity with proper ventilation.

The drying process of Garlic after harvesting is a determining factor for keeping the heads in full quality for a long time inside the store. When it is impossible to carry out the process of drying treatment naturally, it can be done industrially by exposing the plants after harvest to hot air at a temperature of 43-46 degrees Celsius for 8: 12 hours.

Moreover, to know, dear farmer, that failure to perform the drying treatment well can lead to the following:

Excessive and rapid decay of poorly treated heads, especially if the heads are stored at zero degrees Celsius. Also, storage at 60-70% relative humidity is essential to maintain quality specifications and prevent root growth and possibly mold in storage at relative humidity above 70% under storage conditions at any temperature.

Pre-harvest treatment of plants with maleic hydrazide at a concentration of 1500-2000 ppm prevents seeding. Storage at zero degrees Celsius enables the heads to remain in good condition for an entire year with a total weight loss of no more than 10%.

Storing garlic seeds:


Garlic stored for seed should be stored at very low temperatures, around freezing, or at room temperature with low relative humidity inside the store. It should not be left in the refrigerator because it will start to break the dormancy and germination phase.