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.
2. 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, and fertilizer and water management should be strengthened during this period. When the garlic stalk does not protrude the leaf mouth, the third topdressing should be carried out, and 25 kg of ternary compound fertilizer should be applied per mu. Garlic bolting protruding leaf mouth, to continuous watering, water to promote bolting, Grain in Beard before and after the garlic bolting bending, to lift the bolting in time.
3. Management of bolting during bulb expansion period after bolting, garlic cloves begin to expand and water demand increases. Watering should be done in time to keep the soil moist and prevent premature senescence; watering should be stopped 7 days before garlic harvest to prevent excessive soil moisture, garlic cloves rot and garlic loose.
Fourth, diseases and insect pests control garlic often occur purple spot and leaf blight in spring. Purple spot disease can be controlled with 64% disinfectant alum wettable powder 500 times or 50% chlorothalonil wettable powder 600 times. Leaf blight can be controlled with 70% mancozeb wettable powder 600 times or 90% ethyl phosphorus aluminum 500 times. The main pest is thrips, which can be sprayed with 800 times of dimethoate EC.
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Spring management garlic fertilizer water
Garlic green after the absorption of fertilizer and water gradually increased, especially in the germination period and garlic expansion period, is the peak of fertilizer and water, management should focus on watering "three", apply "three fertilizers". Pouring good return green water, applying good return green fertilizer spring ground temperature is low, it is best to irrigate return green water at noon, to achieve the purpose of promoting early seedling. Combined with watering, apply 15~25 kg of nitrogen, phosphorus and potassium compound fertilizer or 15 kg of potassium sulfate per mu, and then control water properly to promote root development. Garlic flower buds and scale buds quickly differentiated at the end of March and the beginning of April by watering enough bolting water and applying heavy bolting fertilizer
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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's season, garlic seedlings begin to turn green and grow green. Due to the low ground temperature in early spring, it is best to water them at noon.
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