How to configure the special fertilizer for garlic?

Garlic is a general term for semiannual garlic plants of the genus Allium in Liliaceae. Its origin is in West Asia and Central Asia. Since Zhang Qian went to the Western regions in the Han Dynasty and brought garlic back to the country to settle down, it has a history of more than 2000 years. It is divided into purple skin species and white skin species according to skin color. It is widely cultivated in various parts of our country. Let's take a look at how to configure the special fertilizer for garlic.

Configuration requirements of special fertilizer for garlic

Garlic, as a sulfur-demanding crop, contains a large number of sulfur-containing spicy substances. In order to improve the yield and quality of garlic, the reasonable combination of potassium and sulfur is very important. Therefore, when formulating the formula of special fertilizer for garlic, according to the basic conditions of the local soil, we mainly produce special fertilizer with a content of about 40% of N, P, K and S, which is usually made of urea, monoammonium phosphate, calcium superphosphate, potassium sulfate and other trace elements.

How to configure the special fertilizer for garlic?

1. Sowing base fertilizer: 60 to 100 kilograms of organic fertilizer or 50 kilograms of cake fertilizer, 50 kilograms of ammonium bicarbonate, 50 kilograms of calcium superphosphate, 15 kilograms of potassium chloride, 1.5 kilograms of zinc sulfate. In addition, 60 to 65 kilograms of ternary compound fertilizer containing 15% nitrogen, phosphorus and potassium can be used as pre-sowing base fertilizer per mu.

2. Topdressing at seedling stage: when garlic grows 3 to 4 true leaves, in addition to topdressing urea 8 to 10 kg per mu, you can also choose 200 grams of potassium dihydrogen sulfate or 250 grams of zinc sulfate or 50 grams of green Fenwei or 40 grams of Songgang green Sheng or 200 grams of Tian run foliar fertilizer mixed with water 60 kg in the early, middle and late stages.

How to fertilize garlic?

1. The principle of fertilization: the fertilization of garlic should be carried out scientifically and reasonably according to the soil fertility and the demand of different growth stages of garlic, and grasp the fertilization principle of "light in front, medium and heavy in the future", which should not only prevent excessive growth in the early stage, but also avoid de-fattening and premature senility in the later stage.

2. Soil preparation and fertilization: garlic should apply sufficient base fertilizer in combination with soil preparation before sowing, applying 25003000kg farm manure, 40kg chlorine-based compound fertilizer and 1.5kg ferrous sulfate, manganese sulfate, borax, zinc sulfate and copper sulfate per mu.

3. application of jointing fertilizer: garlic in the green stage of garlic under normal climate generally does not carry out field management, and the first topdressing should be carried out at the jointing stage, but the amount of nitro compound fertilizer is 20kg / mu and the second fertilizer is about 20kg / mu at intervals of 15 / 20 days.

4. application of chemical fertilizer: garlic enters the period of differentiation and bolting, vegetative growth and reproductive growth are carried out at the same time, and the demand for phosphorus is strong. When the garlic mu (present tail) mu is topdressing 15kg / mu of high-phosphorus and high-potassium compound fertilizer, it will be dissolved and then applied.

5. Extra-root topdressing: extra-root topdressing of garlic should be carried out before 11:00 or after 4: 00 p. M. on a sunny day, soak in 2 kg of common calcium or 1 kg of sulfur-based compound fertilizer in 50 kg of water for 12 hours, and the clarification solution should be sprayed for 1 mu. Foliar spraying can be carried out twice in the middle and later stages.