Remedial methods for the yellowing of garlic leaves in autumn
In autumn, planting garlic is prone to leaf tip yellowing, so that the stem and leaf is not long, the stem is not thick, the yield is low and the quality is poor, so it is necessary to strengthen the cultivation management.
Rational fertilization during the growth period of autumn garlic, fertilizer must be applied to the roots every 15 to 20 days, mainly high-quality organic fertilizer, 0.5 kilogram of rotten peanut cake fertilizer per square meter of garlic field, 10 kilograms of rotten human and animal manure mixed with water or retting water and then drenched. At the same time, 800 times vegetable special organic humic acid active liquid fertilizer solution was sprayed on the leaves every 10-15 days to wet all the leaves evenly.
Timely water supply for planting garlic in autumn, we must ensure an adequate water supply and keep the soil moist, except that we should drench with clean water once in the morning and evening every day, 8 kilograms per square meter each time. The border should also be covered with dry straw or other weeds, which are 3-5 cm thick to reduce water loss and keep the soil moist.
Autumn garlic is seriously damaged by leaf spot, anthracnose, aphids, red spiders and so on, so that the leaf tip is yellowed. It is necessary to spray 1000 foliar, 800X methyl topiramate on the leaf surface every 15 days, or 25x 30x calcium superphosphate and dry pure plant ash, or 1500 times an Lubao, 600x Dixong mixture, wet leaf dripping is appropriate to eliminate all kinds of diseases and pests that damage the leaves.
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Comprehensive control of tip yellowing of garlic leaves in autumn
Planting garlic in autumn is prone to leaf tip yellowing, resulting in short stems and leaves, not thick stems, low yield and poor quality. First, the cause of the disease 1. The soil fertility was low and the nutrient supply was insufficient in the later stage. two。 In the later stage, the temperature was too high and the water supply was insufficient. 3. Year after year, the density is too high. 4. It is seriously damaged by leaf spot, anthrax, aphids, red spiders and so on. Second, prevention and control measures 1. Choose sandy loam with loose soil and high fertility, and apply farmers with 667 square meters before planting.
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Cultivation techniques of Autumn garlic with plastic Film mulching
Using plastic film mulching cultivation, the yield of garlic bolting increased from 100~150kg to 200~300kg, and the yield of garlic per mu increased from about 2000kg to 2500~3000kg. The main results are as follows: 1. the varieties are mostly cultivated with Puke garlic in Zhangqiu County, Shandong Province for autumn seed and plastic film mulching. Varieties suitable for local cultivation can be selected in various places. 2. Soil preparation, fertilization and cultivation of garlic is mainly based on base fertilizer, which requires the application of farm mixed fertilizer above 5000kg per mu, plus 50kg superphosphate.
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