Applying sufficient base fertilizer to see that the seedling supplement garlic requires more nitrogen fertilizer, followed by potassium fertilizer, and slightly less phosphate fertilizer. Generally, it requires 12-18.5 kg of pure nitrogen per mu, 10-11.5 kg of phosphorus pentoxide, and 12-13.5 kg of potassium oxide. The nutrient for the growth of green garlic seedlings comes from the mother petals, and when the nutrients are exhausted, fertilizer should be provided in time. Therefore, fully decomposed soil and manure, 4,000-5,000 kg of manure, or 75-100 kg of bio-organic compound fertilizer or 200-300 kg of plant-based commercial organic fertilizer should be applied per acre, and 50-75 kg of high-content multi-component compound fertilizer should be applied at the same time. , Avoid using immature farm manure. When garlic emerges with 3 to 4 leaves, 750 to 1000 kilograms of decomposed human feces or 10 to 15 kilograms of urea should be chased per acre. If the garlic is harvested mainly from garlic sprouts, before overwintering, about 1,000 kg of human feces should be applied, and 10-15 kg of urea per acre before bolting. After bolting, according to the growth of garlic, add petal fertilizer as appropriate.
To promote the healthy growth of garlic, it is necessary to regulate the soil moisture, manage the fertilizer and water, and improve the water supply and fertilizer capacity. The so-called three protections, one is to maintain good soil moisture after sowing and before emergence, in order to benefit the whole seedlings and strong seedlings; the second is to control water after emergence to prevent rotten mothers (petals) and prevent overgrowth; third is the period of vigorous leaf growth. It is necessary to keep the soil moist, keep the water without defertilization, increase the leaf area coefficient, and enhance the photosynthetic efficiency. The so-called three controls, one is to control the water before bolting to promote bolting and harvesting; the second is to water immediately after harvesting, to adjust the soil moisture, to promote bulb expansion, and the garlic will grow quickly; the third is to control watering when harvesting. Water promotes the maturity of garlic and improves the quality.
Supporting management to improve the effect of fertilizer and water. One is to prepare the ground carefully before sowing, because garlic has more stems and leaves and fewer roots. The soil finishing depth should reach 20-25 cm, so that the soil is soaked in the grass and it is convenient for the garlic to grow roots early and multiple roots. The second is that organic fertilizers should be applied about 10 days in advance, and they should be spread evenly when applying, and ditch application is advocated; third, the field ditches should be unblocked to facilitate irrigation and drainage, so that moisture can be adjusted by water and fertilizer should be adjusted by water; After the garlic emerges, it should be cultivated in time to improve the permeability of the soil, promote the formation of new roots, and enhance the absorption capacity of fertilizer and water.
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