1, control of pests and diseases. The major pests and diseases that damage peanuts in this period are leaf spot, rust, pupa, cotton bollworm, etc. If they are not controlled in time, they can easily cause leaves to fall off and reduce the area of ​​green leaves.
(1) Prevent disease. In order to control leaf spot and rust, and to extend the functional period of the leaves, after the onset of disease, according to the disease conditions, the use of carbendazim, thiophanate-methyl, mancozeb, chlorothalonil and other agents for foliar spraying twice to four times Control, spray two times interval 10-15 days.
(2) pest control. Peanuts that were not seeded with “812†at the time of sowing were found to have been damaged during the growing season. The fenoxanthine solution was used to perfuse the piers during the pod stage. The high temperature and humidity in the summer will benefit the occurrence of cotton bollworm. After the prevention and control indicators are exceeded, new pesticides such as Proteobacterium, Insect Overlord, and Thousand-thousands can be used to prevent and cure.
2. Spray foliar fertilizer to maintain leaf vigor. The expansion period of pods is the peak period for peanuts. In order to prevent defertilization, prolong the functional period of leaves, and increase the fullness of pods, the foliage may be sprayed once every 7-10 days in the later stage of pods, such as too fat and chlorophyll. fat.
3. Spray the growth regulator timely. In the early stage of scarring, in order to prevent plant growth, maintain a high and stable effective leaf area, increase the photosynthetic rate, and increase the rate of transfer of photosynthetic products from the nutrient to the gooseberry, paclobutrazol, peanut oil, and strong food can be sprayed on the leaves before and after peanut ridge sealing. Ammonium and other growth regulators are chemically controlled.
4, drought and watering. In the event of drought in the stage of pod-logging and pod maturity, furrow irrigation should be performed immediately to ensure the normal growth and development of peanuts and ensure high and stable yields.
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