Autumn peanuts grow into the middle and late stages, the temperature gradually decreases, the rain is scarce, and the stems and leaves grow slowly. At this time, the autumn peanuts are in the period of pod filling and pod filling, which requires a large supply of nutrients. Peanut leaves have more and more stomata, and have strong ability to absorb water from the foliage. If you can grasp the foliar fertilization in time, you can replenish nutrients in time, prevent premature senescence of autumn peanut stems and leaves, improve photosynthesis efficiency, and increase nutrient accumulation. Fertilizers suitable for use as foliar fertilizers and methods of use are as follows:
1. Spray potassium dihydrogen phosphate. Spraying in the filling stage of autumn peanut pods and pods can meet the needs of phosphorus and potassium development in peanut pods, increase the number of effective pods and pod fruit filling, and prevent premature senescence of stems and leaves, with significant yield-increasing effects. Generally, it is sprayed twice with a 0.2% potassium dihydrogen phosphate solution, and 55-60 kg of spray solution per acre. If the leaf surface is yellowish, 0.5% urea solution can be added and sprayed, and the yield increase effect is more remarkable. .
2, spray boron fertilizer. Boron fertilizer can promote pollen germination, is conducive to pollination and fertilization, improve fruit set rate, increase chlorophyll content, enhance photosynthesis, prevent "fruit and not benevolence" of peanuts, and increase fruit weight and fruit rate. When the autumn peanuts are sprayed into the pods during the filling period, the yield can be increased by more than 10%. Generally, it is sprayed once during the full bloom period and the pod filling period. Each time, 120 grams of borax is used per acre. Dissolve it with a small amount of warm water, then add 50 kg of water to dilute and spray the leaves.
3, spray molybdenum fertilizer. Molybdenum promotes the nitrogen fixation of leguminous fungi. Spraying molybdenum fertilizer during the full bloom period of autumn peanuts and pod filling period can promote the fullness and fullness of the pods and increase the yield by more than 8%. 50 g of ammonium molybdate per acre, diluted with 50 kg of water, sprayed, and sprayed a second time after 7-10 days, continuously spraying 1-2 times.
4. Spray iron fertilizer and zinc fertilizer. Peanut is extremely sensitive to iron. Peanut planting in alkaline soil is prone to iron deficiency, showing symptoms of yellowing of yellow leaves. If the iron fertilizer is sprayed in time, the color of the peanut leaves will turn from white to green within a few days, which has obvious effect of increasing yield. According to the test, 0.4% ferrous sulfate is sprayed once during the full bloom period of the autumn peanuts and the fruit filling period, which can increase the yield by more than 10%. The supply of zinc is sufficient, the peanuts grow vigorously, and the plants are strong and leafy. For example, if the zinc fertilizer is mixed and sprayed in the iron fertilizer, the yield increase effect is better. For each acre, use 160-200 grams of ferrous sulfate, 100 grams of zinc sulfate, and add 55 kg of water to dilute and spray evenly.
5, spray light and micro-fertilizer. Photosynthetic micro-fertilizer applied on peanuts can not only meet the needs of various trace elements, but also inhibit photorespiration, reduce consumption, improve photosynthetic efficiency, and promote pod fullness and fullness, which can increase yield by more than 7%. In the autumn peanut full bloom and pod fruit filling period, spray each time, use 100 grams of photosynthetic micro-fertilizer per acre, add 50 kg of water, choose to spray on cloudy or sunny afternoon.
6. Spray rare earth. Rare earth can promote pod development and fullness. During the full bloom period and pod filling period, 15 g of rare earth nitrate or 50 ml of rare earth phytoplankton per acre, 50 kg of water, diluted and evenly sprayed on cloudy or sunny afternoon.
1. Spray potassium dihydrogen phosphate. Spraying in the filling stage of autumn peanut pods and pods can meet the needs of phosphorus and potassium development in peanut pods, increase the number of effective pods and pod fruit filling, and prevent premature senescence of stems and leaves, with significant yield-increasing effects. Generally, it is sprayed twice with a 0.2% potassium dihydrogen phosphate solution, and 55-60 kg of spray solution per acre. If the leaf surface is yellowish, 0.5% urea solution can be added and sprayed, and the yield increase effect is more remarkable. .
2, spray boron fertilizer. Boron fertilizer can promote pollen germination, is conducive to pollination and fertilization, improve fruit set rate, increase chlorophyll content, enhance photosynthesis, prevent "fruit and not benevolence" of peanuts, and increase fruit weight and fruit rate. When the autumn peanuts are sprayed into the pods during the filling period, the yield can be increased by more than 10%. Generally, it is sprayed once during the full bloom period and the pod filling period. Each time, 120 grams of borax is used per acre. Dissolve it with a small amount of warm water, then add 50 kg of water to dilute and spray the leaves.
3, spray molybdenum fertilizer. Molybdenum promotes the nitrogen fixation of leguminous fungi. Spraying molybdenum fertilizer during the full bloom period of autumn peanuts and pod filling period can promote the fullness and fullness of the pods and increase the yield by more than 8%. 50 g of ammonium molybdate per acre, diluted with 50 kg of water, sprayed, and sprayed a second time after 7-10 days, continuously spraying 1-2 times.
4. Spray iron fertilizer and zinc fertilizer. Peanut is extremely sensitive to iron. Peanut planting in alkaline soil is prone to iron deficiency, showing symptoms of yellowing of yellow leaves. If the iron fertilizer is sprayed in time, the color of the peanut leaves will turn from white to green within a few days, which has obvious effect of increasing yield. According to the test, 0.4% ferrous sulfate is sprayed once during the full bloom period of the autumn peanuts and the fruit filling period, which can increase the yield by more than 10%. The supply of zinc is sufficient, the peanuts grow vigorously, and the plants are strong and leafy. For example, if the zinc fertilizer is mixed and sprayed in the iron fertilizer, the yield increase effect is better. For each acre, use 160-200 grams of ferrous sulfate, 100 grams of zinc sulfate, and add 55 kg of water to dilute and spray evenly.
5, spray light and micro-fertilizer. Photosynthetic micro-fertilizer applied on peanuts can not only meet the needs of various trace elements, but also inhibit photorespiration, reduce consumption, improve photosynthetic efficiency, and promote pod fullness and fullness, which can increase yield by more than 7%. In the autumn peanut full bloom and pod fruit filling period, spray each time, use 100 grams of photosynthetic micro-fertilizer per acre, add 50 kg of water, choose to spray on cloudy or sunny afternoon.
6. Spray rare earth. Rare earth can promote pod development and fullness. During the full bloom period and pod filling period, 15 g of rare earth nitrate or 50 ml of rare earth phytoplankton per acre, 50 kg of water, diluted and evenly sprayed on cloudy or sunny afternoon.
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