Soybean grain ripening period field management measures: When the soybean grain obviously bulges more than 50% of the plants, that is into the grain period, until mature, this period is the maturity of soybean grain. During the mature period of soybean grain growth, vegetative growth stops, reproductive growth prospers, and nitrogen fixation capacity of the roots decreases. In field management, it is necessary to meet the nutrients and moisture required for later growth, drought, water, and timely drainage, and timely removal of the field. Large grass and pest control. The specific measures for field management are as follows:
1. Fertilizer spraying and supplementing nutrients: During the period from the eardrum to the ripening stage, the plant roots begin to age and the absorptive capacity is reduced. Soybeans often cause premature decline due to lack of fertilizer. For soybean blocks with premature aging at the early stage of grain blasting, 300 grams of urea and 150 grams of potassium dihydrogen phosphate are mixed with 50 kilograms of water. After 4 o'clock in the rainless day, foliar spray is applied. The back of the blade is the site of spraying. , spray 2-3 times.
2. Drain the drum water, increase the weight gain: Soybean grain water shortage, will increase the pods, pods, 100-grain weight drop. Therefore, in the autumn when there is no rain, it is necessary to water the water in time, and water tapping has obvious effects on improving the yield and quality. The method of watering grasps the principle of “no wind and quick pouring, and the wind stops pouring†to prevent lodging. In the event of heavy rain, the water in the field was ruled out.
3. Remove large grasses from the fields: Soybean weeds that have not been cleaned before the middle and late stages of growth will still appear, and because of the high temperature, high humidity, rapid growth, and competition with soybeans, affecting photosynthesis, must be in the grass seed. Remove before forming.
4, timely control of pests and diseases: the common pests of soybean in our city are soybean meal, bean hornworm, cotton bollworm and soybean meal, etc., generally available organic phosphorus pesticides or pyrethroid pesticide spray control.
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