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Winter green manure cultivation techniques
Ziyun acre yield up to 2000-4000 kilograms, its nitrogen up to 037%, per acre Ziyun Ying pure nitrogen 74-148 kg (converted to urea 16-32 kg); radish green phosphorus up to 02%, which can be Inorganic phosphorus, which is difficult to use in soil, is converted into available phosphorus that is easily absorbed and utilized by crops. In winter, Ziyunying and radish green can be used to fertilize and improve soil, improve water retention and fertility, reduce the use of chemical fertilizers, improve the quality and quality of agricultural products, and increase economic efficiency. The main cultivation techniques are described as follows: 1. Prepare a variety of late-maturing varieties with good quality before sowing, new seeds of the year, high germination rate, and high yield per mu; sowing before planting for half a day; then add equal amount of river sand and weaving into the weaving Rubbing the bag vigorously, grinding the seed coat to remove wax, can increase the germination rate by 30%, soaking for 24 hours, the seed can be sown with buds. Second, mixed fungi seed dressing new species must be mixed with rhizobial bacteria, which is the key to the success of the planting of Ziyun Ying in the new area, the old district mixed strains can also significantly increase production. The seed dressing fertilizer can be mixed with 5 kg of superphosphate, 30 kg of grass ash and 50-100 kg of decomposing farmhouse manure for 7 days, and the mixed seeds are mixed with the broadcast. Third, the sowing time in late rice after the head of the panicle hook, mu sowing Yun Yunying 1-15 kg mixed radish 025 kg; Ziyun Ying, radish and late rice symbiotic 15-20 days is appropriate; sowing the field to keep moist State, excessive moisture, or drought is not conducive to its growth. Fourth, moisture management Ziyun Yingxi wet, afraid of drought, afraid of waterlogging. Throughout the growing period, the soil should be guaranteed to have a certain degree of humidity, so that the field can discharge energy. After the late rice is harvested, it is necessary to open a cross ditch and a ring field ditch. The ditch can communicate with each other; heavy rain does not accumulate water; When the soil is white, we should timely fill the "Happy Valley" moist soil to meet the growth requirements of the Chinese milk vetch. 5. Appropriate topdressing for fertilization, especially for paddy fields with poor fertility, should be followed by 1–2 times of fertiliser, and “small fertilizers and large fertilizers†can significantly increase the yield of green manure. Fertilization was divided into three stages: base fertilizer, pre-winter fertilizer and spring fertilizer. 6. Pest and disease prevention and control diseases include sclerotinia and powdery mildew. Pests include aphids, thrips, leafminers, pods, and Spodoptera litura, etc., and comprehensive care should be taken.