How to do sow
Rational rotation, minimization of heavy burdens, and maintenance of appropriate greetings to solve the basic approach of soy bean cropping, is to adhere to a reasonable crop rotation system. In the current situation where soybeans are unavoidably greeted, they should be redoubled and greeted. Planting) Differentiate, minimize heavy lifting, and properly greet. The wind-sand saline-alkaline soil area, as well as the inhospitable slopes and cyst nematode diseases, sclerotinia, and severely rooted plots cannot be planted to meet soybean crops. We can choose Pingchuandi and Ertuo, which have high organic content, planting soybeans with heavy weight, and heavy weeds can only be heavy for one year. For those plots that are developed late and have high organic matter content, although they can be appropriately weighted, they cannot be excessively long.
The research and practice at home and abroad that use highly resistant varieties has proven that the selection of disease-resistant or disease-resistant varieties is an effective measure to reduce the impact on soybean yield and quality. In addition, we should do a reasonable mix of different varieties, rotation planting to reduce the risk of re-welcome. Changing the use of varieties can effectively reduce the risk of serious accidents.
Rational farming, increasing fertilization, and improving the soybean breeding environment Soybeans are replanted, especially in successive years, resulting in tight compaction of the soil, lack of a reasonable pellet structure, and decreased fertility. In terms of soil cultivation, we must adhere to the soil cultivation system that combines loose, upturned, hoeed, and rotated soils that are mainly deep-soiled and vigorously promote deep-seeding cultivation methods. Increasing the use of organic fertilizer can not only balance the supply of soybean nutrition, but also improve the adverse soil environment caused by heavy grazing. It is an effective measure to reduce production loss. Due to the decrease of available nitrogen content, scarcity of root nodules, and weakening of nitrogen fixation capacity in the heavily ploughed plots, the effects of topdressing nitrogen fertilizers at seedling stage or flowering stage of soybeans are quite obvious under the condition of insufficient nitrogen fertilizer. Can be applied in the soybean three-leaf period 30-60 kg / ha urea, or topdressing urea 67.5 kg / ha during the first flowering period, the rate of increase in more than 10%.
Appropriate increase in sowing density due to aggravation of pests and diseases in the recultivated land, deterioration of soil environment, extremely unfavorable to the growth of soybean, easily lead to lack of seedling phenomenon. Therefore, to re-appropriate land plots, the appropriate increase in the amount of sowing is generally 8% -10% higher than that of the soybean grown in Zhengzhou, and the quality of sowing seeds is increased, and the number of seedlings is increased.
Strengthen field management, prevention and control of diseases, pests and weeds If soybean growth is poor in the earlier period, use 10 kg of urea per hectare, 1500 g of potassium dihydrogen phosphate and 66 g of potassium sulfate and dissolve in 500 kg of water for foliar application. For those plots that do not use micronutrients as fertilizers or do not use micro-fertilizers, micro-fertilizers may be sprayed appropriately.
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