What kind of fertilizer should be applied to garlic in spring

Nitrogen and potash fertilizers can be applied to garlic in spring, and when the daily average temperature reaches 7 ℃, about 20 kg of diammonium phosphate or 25 kg of ternary compound fertilizer per mu can be applied, the second topdressing can be carried out after entering April, and the third topdressing should be carried out when garlic bolts enter the peak period in early May, and about 25 kg of ternary compound fertilizer per mu should be applied, while potassium deficiency during bulb expansion has a greater effect on plants. About 15-20 kg of high-nitrogen and high-potassium fertilizer should be applied to accelerate the expansion of garlic.

What kind of fertilizer should be applied to garlic in spring

Garlic is a fertilizer-tolerant crop, and it is still necessary to apply topdressing in spring after applying sufficient base fertilizer before planting. If the high-yield field, the total amount of fertilizer should be controlled at about 25 jin of pure nitrogen and 10 jin of potassium, and the maximum efficiency period of nitrogen fertilizer is in mid-early April. The maximum efficiency period of potash fertilizer is Grain Rain-the Beginning of Summer, fertilizer application is conducive to increase production.

1. Returning to green period: when the average daily temperature reaches 7 ℃ in spring, the returning period should be watered and fertilized in time. About 20 kg of diammonium phosphate or 25 kg of ternary compound fertilizer can be applied per mu. The yellow tip phenomenon will appear in the leaves before and after Ching Ming Festival. At this time, it is necessary to carry out the second topdressing and increase the watering times, watering every 10-15 days or so to ensure the healthy growth of the plant.

2. The growing period of garlic bolts: the garlic bolts enter the prosperous period in early May, at this stage, fertilizer and water management should be increased. When the garlic bolts have not protruded the leaf opening, the third topdressing should be carried out, and about 25 kg of ternary compound fertilizer should be applied per mu. When the garlic bolts protrude the leaf mouth, they should be continuously watered.

3. Bulb expansion period: lack of potassium has a great influence on the plant at this stage. It is necessary to apply 15-20 kg of high-nitrogen and high-potassium fertilizer to accelerate the expansion of garlic, and timely watering to keep the soil moist, but stop watering a week before harvest. Prevention and control of excessive humidity makes garlic cloves rotten and garlic loose.

Matters needing attention in growing garlic

1. Seed selection

(1) the first way to grow garlic is to choose the seeds of garlic. The seeds of garlic are actually the cloves we often eat.

(2) garlic cloves are required to be free of diseases and insect pests. Selecting garlic cloves and washing them and mixing them with fungicides can effectively kill the bacteria on the parasitic garlic cloves.

2. Fertilization

(1) fertilizing before soil preparation, the fertilizer can choose fully mature farm manure and an appropriate amount of chemical fertilizer, after sprinkling fertilizer, turn the soil deeply, usually about 30 centimeters, turn the soil and dry for about half a month.

(2) the soil should be turned over as soon as possible, and only in this way can the seeds be sown earlier. In general, the planting of garlic is around the Autumn Equinox, so that garlic can sprout roots better, which is conducive to the winter of garlic.

3. Close planting

The main results are as follows: (1) reasonable density should be selected for planting garlic. Generally speaking, the plant spacing we choose is between 10 and 12 centimeters, the row spacing is mostly between 15 and 20 centimeters, and the depth is about 6 centimeters.

(2) this is beneficial to the sprouting and growth of garlic. Foliar fertilizer and fungicides should be properly sprayed after garlic emergence, which can not only prevent garlic diseases and insect pests, but also increase the yield of garlic.

4. Watering

After the emergence of garlic seedlings should be watered again, watering at the same time combined with hoe, can promote the growth of garlic roots. Lesser Snow will usually be watered 2-3 times before the arrival of solar terms, and sprinkle wheat bran on the ground to protect garlic for the winter.

5. Pest control

In the process of growing garlic, China needs not only enough water, but also to prevent the occurrence of diseases and insect pests, such as leaf blight, gray mold and so on. For diseases and insect pests, it is necessary to give priority to prevention and combine prevention and control.