What fertilizer works well for garlic in spring

AbstractIn spring, garlic can be given nitrogen fertilizer and potassium fertilizer. When the daily average temperature reaches 7°C, apply about 20 kg of diammonium phosphate per mu or about 25 kg of ternary compound fertilizer per mu. After entering April, a second topdressing can be carried out. In early May, garlic scapes enter their vigorous growth period, and a third topdressing should be carried out, applying about 25 kg of ternary compound fertilizer per mu. During the bulb expansion stage, potassium deficiency has a relatively large impact on the plants, so 15-20 kg of a high-nitrogen, high-potassium fertilizer is needed to accelerate garlic bulb expansion.

I. What fertilizer to apply to garlic in spring

Garlic is a fertilizer-tolerant crop. After applying sufficient base fertilizer before planting, it is still very necessary to carry out topdressing in spring. For high-yield fields, the total fertilizer application should be controlled at about 25 jin of pure nitrogen and about 10 jin of potassium. The period of greatest nitrogen fertilizer efficiency is in early to mid-April, while the period of greatest potassium fertilizer efficiency is from Grain Rain to Start of Summer. Applying enough fertilizer helps increase yield.

1. Green-up stage: When the daily average temperature in spring reaches 7°C, garlic enters the green-up stage. During the green-up stage, water and fertilize in time. Apply about 20 kg of diammonium phosphate per mu or about 25 kg of ternary compound fertilizer per mu. Around Qingming Festival, the leaf tips may turn yellow, and at this time a second topdressing is needed, along with increasing the frequency of watering. Water once every 10-15 days or so to ensure healthy plant growth.

2. Garlic scape growth period: In early May, garlic scapes enter their vigorous growth period. At this stage, fertilizer and water management need to be increased. Before the garlic scapes extend out of the leaf opening, a third topdressing should be carried out, applying about 25 kg of ternary compound fertilizer per mu. After the garlic scapes extend out of the leaf opening, watering should be done continuously.

3. Bulb expansion stage: At this stage, potassium deficiency has a relatively large impact on the plants, so 15-20 kg of a high-nitrogen, high-potassium fertilizer is needed to accelerate garlic bulb expansion, and watering should be done in time to keep the soil moist. However, stop watering one week before harvest to prevent excessive humidity from causing the garlic cloves to rot and the garlic bulbs to become loose.

II. Precautions for planting garlic

1. Seed selection

(1) The first step in planting garlic is selecting garlic seed. Garlic seed is actually the garlic cloves we commonly eat.

(2) The garlic cloves should be free of pests and diseases. After selecting good garlic cloves, wash them clean and mix them evenly with a fungicide. This can effectively kill pathogens parasitic on the garlic cloves.

2. Fertilization

(1) Fertilize before preparing the land. The fertilizer can be fully decomposed farmyard manure and an appropriate amount of chemical fertilizer. After spreading the fertilizer, plow the soil deeply, generally to about 30 cm, and after plowing, let it dry in the sun for about half a month.

(2) Plow the land as early as possible; only in this way can sowing be carried out earlier. Garlic is generally planted around the Autumn Equinox, so that the garlic can sprout and root better, which is beneficial for the garlic to overwinter.

3. Close planting

(1) When planting garlic, choose a reasonable density. Generally, the plant spacing we choose is between 10-12 cm, the row spacing is mostly between 15-20 cm, and the depth is about 6 cm.

(2) This is beneficial for garlic sprouting and growth. After garlic emerges, appropriately spray foliar fertilizer and fungicide. This can not only prevent pests and diseases in garlic, but also increase garlic yield.

4. Watering

After garlic emerges, water again. While watering, combine with hoeing, which can promote the growth of the garlic root system. Before the Light Snow solar term arrives, generally water 2-3 times, and scatter wheat bran on the ground to protect the garlic through the winter safely.

5. Pest and disease control

In the process of planting garlic, in addition to sufficient water, it is also necessary to prevent the occurrence of pests and diseases. Common pests and diseases in garlic growth include leaf blight, gray mold, and so on. For pests and diseases, prevention should be the main approach, with combined prevention and control.