Management measures of garlic in spring
The management of water and fertilizer after garlic turning green is the key to the high yield of garlic. The weather turns warm, and the absorption of water and fertilizer increases gradually after turning green, especially in the pregnant bolting period and the expansion period of garlic, which is the peak period of water and fertilizer demand for garlic, so during the whole growth period of garlic, it is necessary to water and top fertilizer in time according to soil moisture and soil fertility. In particular, we should focus on watering "three water" and applying "three fertilizers".
1. Pour good water and fertilizer to return to green. In the Spring Equinox season, garlic seedlings begin to turn green and grow. Due to the low ground temperature in early spring, it is best to pour green water at noon to achieve the purpose of promoting early development of seedlings. Combined with watering, 15 kilograms of nitrogen, phosphorus and potassium compound fertilizer per mu, or 15 kilograms of potassium sulfate are applied. After that, the water is properly controlled to promote root development and the differentiation of garlic bolts and heads.
two。 Pour enough bolting water and re-apply bolting fertilizer. At the end of March and the beginning of April, flower buds and scale buds differentiated rapidly, and gradually entered the growth and progression stage of garlic bolts and garlic heads, the leaf area reached the maximum, and garlic bolts grew rapidly. The fertilizer and water management in this period directly affected the yield of garlic bolts and garlic heads. Furthermore, it needs more water, and it must be watered in time to meet the needs of its growth. therefore, 25 kg of compound fertilizer per mu is applied by combined watering, and 25 kg of nitrogen, phosphorus and potassium fertilizer is applied per mu after 15 days, or 15 kg of urea and phosphorus and potassium nitrate compound fertilizer each. Generally irrigating one water for 7-10 days, garlic bolting period, watering every 5-7 days, applying quick-acting nitrogen fertilizer every two days, and spraying foliar fertilizer to supplement some sulfur, garlic also has more demand for sulfur.
3. Pour enough inflated water and skillfully apply inflated fertilizer. The peak period of garlic expansion is after bolting, and the leaves and roots should be protected during bolting. At this time, the expansion and weight gain of garlic is the main, and the garlic leaves should be watered in time after bolting, so as to prevent the premature senescence of garlic leaves, prolong the green time of garlic leaves, and promote the transfer of nutrients to the bulb, mainly to increase material accumulation. Therefore, the topdressing is mainly based on available nitrogen fertilizer, supplemented by phosphorus and potassium, and 15kg urea or potassium sulfate compound fertilizer is applied per mu. Keep the soil moist to meet the water needs of garlic in the later stage, and stop watering about a week before harvest.
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Key points of garlic management technology in spring
First, after the management of the green period, after the garlic turns green, it should be watered and fertilized in time. The combination of watering and topdressing diammonium phosphate 20 kg per mu or ternary compound fertilizer 25 kg. Then carry on the shallow hoe to loosen the soil, raise the temperature and preserve the soil moisture. The yellow tip phenomenon appeared in the leaves before and after Ching Ming Festival, so the second topdressing should be carried out in time, and the watering times should be increased. Generally, it should be watered every 10 murals and 15 days to promote plant growth. II. Management of garlic bolting growth period at the beginning of May, garlic bolts began to differentiate. After the Beginning of Summer, garlic bolts entered a vigorous growth period, during which fertilizer pipes should be increased.
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Four key points of High-yield cultivation of Spring sowing garlic
Garlic is sown in spring and harvested in summer, the seedling stage is shorter, the nutrient accumulation is less, and the yield and quality of garlic are not as good as those of autumn sowing. If we want to improve the yield and quality of spring sowing garlic, we must select good varieties and emphasize management. The key is to do a good job in the following four links: 1. Select suitable varieties: spring sowing garlic takes about 100 days from planting to harvest, and the whole growth period is very short. Purple garlic with short growth period should be chosen to grow garlic. two。 Heavy application of base fertilizer: 3000 kg of human and animal manure or barnyard manure per mu combined with land preparation before sowing, 15 ∶
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