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Autumn peanut high yield cultivation method
First, timely broadcast. "Early autumn" to "summer heat" are the appropriate dates for the planting of autumn peanuts. If planted on dry slopes, sowing should be appropriately advanced, generally before and after the "big heat" sowing, reduce the impact of autumn drought. If sowing early, it will easily lead to leggy, pests and diseases are more, is not conducive to flowering and scarring; if sowing too late, due to late low-temperature drought, capsule fruit is stunted, there are many empty pods, and the yield is low. Second, rational dense planting to ensure the whole seedlings. The sowing period of autumn peanuts is in an environment with high temperature and high rainfall, and the planting density should be appropriately increased. In order to fill the gaps, it is necessary to increase the planting density. Third, apply the base fertilizer, timely fertilizer. Generally, the planting of peanuts in Qiuzhi is about 20 days after flowering. The period of vegetative growth is shorter than that of peanuts in spring, and it is in the rainy season where the temperature is high. Fertilizer decomposition is fast and easy to consume. Therefore, you must apply the base fertilizer and top-dressing in time. Otherwise, often because of the lack of early nutrition, poor plant nutrition, resulting in late branches, less branches, the output is not high. The best basal fertilizer per mu application quality farmyard 30-40, superphosphate 17-20 kg, 15 kg of peanut bran, 100 kg of plant ash. After Qi Miao, 4 to 5 kg of urea per acre is used to spread the soil after the rain is wet and promote early branching and early flowering. After Xiehua, mu is applied to 60 kg of black and white ash (30 kg of lime powder and 30 kg of grass and wood ash) to prevent premature aging and premature emergence of seedlings. In addition, according to the condition of the seedlings, a 1.5% potassium dihydrogen phosphate solution should be sprayed once in the next period and during the fruit filling period to increase the filling degree and the whole fruit weight. Fourth, strengthen field management. Autumn peanuts have more rain in the early stage and are afraid of the seedlings. They need to drain the gutters in time to prevent water accumulation. In the later period, autumn drought often occurs, and water irrigation or watering is needed to prevent the plants from drought and withering. Early cultivator, loose soil and weeding. Fifth, comprehensive prevention and control of pests and diseases. Strengthen field inspections and timely control of pesticide application. For pest control, seedling period can be used to spray killing 600 times malathion, in the middle and late can be sprayed with 800 times liquid trichlorfon. For leaf spot and rust, the drug should be started at the flowering stage. It can be controlled by using 1:2:200 Bordeaux liquid or colloidal sulfur 150 times, or alternating with 800 times liquid of chlorothalonil. The control effect is better.