What are the preparation methods for garlic-specific fertilizer?
Garlic is the collective term for biennial herbaceous bulb plants of the genus Allium in the lily family (Liliaceae), native to West and Central Asia. Since Zhang Qian was sent on a mission to the Western Regions during the Han Dynasty and brought garlic back to be cultivated in China, it has a history of more than two thousand years. It is divided into purple-skinned and white-skinned varieties according to skin color, and is widely cultivated throughout China. Let's take a look below at how garlic-specific fertilizer is prepared!
Requirements for Preparing Garlic-Specific Fertilizer
As a crop with a relatively high sulfur requirement, garlic contains a large amount of sulfur-containing pungent substances. To improve the yield and quality of garlic, a reasonable combination of potassium and sulfur is crucial. Therefore, when formulating a garlic-specific fertilizer recipe, based on the basic soil conditions of each area, the main production is a specific fertilizer with N, P, K, and S content of around 40%, usually made from urea, monoammonium phosphate, superphosphate, potassium sulfate plus other trace elements.
How is garlic-specific fertilizer prepared?
1. Sowing base fertilizer: 60 to 100 loads of organic fertilizer or 50 kg of cake fertilizer, 50 kg of ammonium bicarbonate, 50 kg of superphosphate, 15 kg of potassium chloride, 1.5 kg of zinc sulfate. In addition, 60 to 65 kg of a ternary compound fertilizer containing 15% each of nitrogen, phosphorus, and potassium can also be used per mu as a pre-sowing base fertilizer.
2. Seedling-stage topdressing: When garlic grows 3 to 4 true leaves, in addition to topdressing 8 to 10 kg of urea per mu, you can also choose 200 g of potassium dihydrogen sulfate or 250 g of zinc sulfate or 50 g of Lufenwei or 40 g of Songgang Lüsheng or 200 g of Tianrun foliar fertilizer, diluted with 60 kg of water, and spray once each in the early, middle, and late stages.
How should garlic be fertilized for good results?
1. Fertilization principles: Garlic fertilization should be carried out scientifically and reasonably according to the soil fertility level and the needs of garlic at different growth stages, grasping the fertilization principle of "light early, heavy middle, supplemental late," preventing both excessive vigorous growth in the early stage and premature aging due to fertilizer deficiency in the later stage.
2. Land preparation and fertilization: Before sowing garlic, sufficient base fertilizer should be applied all at once in combination with land preparation, with 2500-3000 kg of farmyard manure, 40-75 kg of chlorine-based compound fertilizer, and 1.5-2 kg each of ferrous sulfate, manganese sulfate, borax, zinc sulfate, and copper sulfate applied per mu.
3. Jointing fertilizer: Under normal climate conditions, garlic generally does not undergo field management during the green-up stage. The first topdressing should be carried out at the jointing stage, with 20-25 kg of nitro compound fertilizer applied per mu, and the second fertilizer applied after an interval of 15-20 days, at about 20 kg per mu.
4. Differentiation fertilizer: When garlic enters the differentiation and bolting stage, vegetative growth and reproductive growth proceed simultaneously, and the demand for phosphorus is strong. Wait until the garlic bolt emerges (shows its tail), then apply 15-20 kg of high-phosphorus high-potassium compound fertilizer per mu, dissolving it first and then flushing it on.
5. Root-zone topdressing: Garlic root-zone topdressing should be carried out before 11 a.m. or after 4 p.m. on sunny days. Choose 2 kg of ordinary calcium superphosphate or 1 kg of sulfur-based compound fertilizer, soak in 50 kg of water for 12 hours, take the clear liquid and spray it on 1 mu. In the middle and late stages, foliar spraying can be carried out 1-2 times.