Summer soybeans how to sow look here

Scientific selection of seeds, focusing on maturing to meet the needs of the quality of edible soybeans and the full range of mechanized production needs, select high-quality, high-yield, adaptable, suitable for the operation of the fine varieties. The southern part of Huanghuai has better heat conditions, and the species with relatively longer growing period, such as Zhonghuang 13, Qidou 28, cowpea 9, Zhoudou 12, cowpea 35, Xudou 14, etc. The regions choose moderately mature varieties such as Qihuang 34, Qidou 17, Qi 5, Zhonghuang 37, Zhonghuang 39, Zhonghuang 301, etc.; the northern Huanghuai region has a relatively short growth period, and early maturing varieties can be used. Kidney beans 12, kidney beans 10, kidney beans 7, kidney beans 8, stone beans 4, stone beans 8, etc. Since there was more rain in the autumn last year and the seed germination rate was affected in some localities, it was necessary to pay attention to the purchase of seeds sold by regular enterprises, and it was necessary to do a germination test before sowing.

Seed treatment, improve the quality of sowing before sowing clearing and drying seeds, remove lesions, worms, broken petals and impurities. Use suitable pesticides for seed dressing to prevent underground diseases and insect pests. Pay attention to uniform coating, dry after the package, avoid exposure. Conditioned plots can be seeded with soybean rhizobial seed dressing immediately after planting, and sowed immediately after mixing, taking care not to use them simultaneously with fungicides. It can use the no-tillage and straw-covering precision seeder to sow, complete the wheat straw cleaning, trenching sowing, fertilization, closed weeding, straw mulching and other operations; also can promptly eliminate stubble after wheat harvest, use rotary tillage, fertilization, sowing, suppression Machine sowing, sowing belt should be flat, and install planting belt covered straw device to prevent soil compaction.

Robbering sowing, so that after a reasonable dense planting wheat harvest, such as soil moisture content of about 18% or more than 10 millimeters of rainfall, can be robbed sowing. Poorly soiled plots can be selected for irrigation after sowing. In the southern area of ​​Huanghuai, care should be taken to open up the "three channels" to prevent damage during the seedling stage. According to the characteristics of varieties, the plant density should be reasonably determined and appropriate close planting should be promoted. Generally, it uses 3-6 kg per acre with a spacing of 40 cm and a number of 15,000-1.8 thousand mu. For varieties with many branches and tall plant types, density can be reduced appropriately; varieties with compact plant types, few branches, and main stem scabs are moderately increased in density. Plots with low seed germination or poor soil moisture should have a moderate increase in sowing. For seed varieties with a large number of seeds, the amount of sowing should be appropriately increased. On the contrary, the amount of sowing should be appropriately reduced.

Deep side fertilization, timely pest control and weeding generally apply 45% compound fertilizer or 10 kg of diammonium phosphate. The occurrence of severe crops in the earthworms can be combined with deep side fertilization and application of appropriate chemicals to control earthworms. Advocate closed weeding after sowing, where conditions can be combined with no-tillage straw fine seeding operations, complete sowing at the same time to close the weeding belt. Close the weeding effect is not ideal for the land, post-emergence chemical weeding can be used. Soybean seedlings, focus on preventing monocotyledonous and dicotyledonous weeds. Herbicides should be used strictly in accordance with the instructions, to avoid phytotoxicity.

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