Does the application of chlorosulfuron in wheat field affect cotton?
Chlorosulfuron is a sulfonylurea herbicide with high herbicidal activity. It is mainly used to control annual monocotyledon and dicotyledonous weeds in wheat and flax fields. At present, it is only used in wheat fields in the Yangtze River valley. It is not easy to decompose in soil, and the residual period is as long as 6 months. Crops such as cotton, peanuts, soybeans and vegetables are sensitive to the drug. Different degrees of drug damage will occur when chlorosulfuron is applied in wheat fields and sensitive crops such as cotton are planted in the following crops. Wheat fields with chlorosulfuron had better not transplant cotton, but can plant other crops with strong drug resistance.
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Control measures of soybean aphid disease
Soybean aphid is one of the main pests of soybean. Adults and nymphs are used to suck juice on the top leaves, tender leaves and stems of soybean plants. In severe cases, it is covered with stems and leaves, which can also infringe upon tender pods, resulting in dwarfism of plants, reduction of fruiting branches and pods, decrease of 1000-grain weight, and death of the whole plant at seedling stage. If it is not controlled in time in the big year, the yield will be reduced by 20-30%. If it is heavy, the yield will be reduced by more than 50%. The main soybean producing areas in China are all distributed, while the harm is more serious in some areas of Northeast China, Henan, Shandong and other provinces. Big
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Management of summer tulips
The flowering period of tulips is from March to May every year. After the tulip blossoms, the underground part of the new bulb develops rapidly, and the mother bulb disappears as a seed bulb. So the tulips should immediately cut off the pedicels and plant the leafy bulbs in the pot (or on the ground). Basic fertilizer should be added first, preferably bean cake crumbs and bone powder to promote the growth of the split bulbs. the new bulbs develop from the lateral buds in the axils of the mother's fleshy scale leaves. When the terminal buds of the mother bulbs form flower buds, the lateral buds germinate. During the period of promoting the germination of lateral buds, it is necessary to apply thin fertilizer.
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