How to plant high yield spring sowing soybeans in Northeast China? Technical guidance is attached!

Soybean is a kind of beans widely planted in northern China, and the beans produced can not only beat soybean milk, make tofu, make bean curd, etc., but also can be used as seeds, and now it is at the sowing stage of spring soybean in Northeast China. Many people have begun to arrange the seedling land and select seeds, but if high yield of soybean is a technical activity, how can spring soybeans in Northeast China be planted with high yield?

I. introduction of soybeans:

1. Is soybean soybeans?

Soybeans are soybeans. Soybean is an annual herb of angiosperm phylum, dicotyledonous class, Leguminosae and Soybean genus, about 30-90 cm high, with stout, erect stems, densely covered with brown hirsute. Soybean is native to China, cultivated all over China, and widely cultivated all over the world.

2. Where is the suitable place to grow soybeans?

Soybeans are widely planted in China, and are produced in North China, Northeast China, Shaanxi, Sichuan and the lower reaches of the Yangtze River. Soybeans, commonly known as soybeans, are annual herbs of dicotyledons, legumes and soybeans, about 30-90 cm high.

Second, how to plant high yield spring sowing soybeans in Northeast China?

1. Timely soil preparation to lay a solid foundation for sowing

The land has been prepared and ridged in autumn, and the soil moisture has been suppressed by top slurry in early spring; the land has been raked and leveled, and when the freezing has reached the depth of ridging, it should be crushed in time; if the land has been turned over and not raked, it is necessary to grasp the soil moisture, rake, ridge, and suppress continuous work. For land preparation before autumn, no-tillage sowing should be adopted if there is a deep turning and deep loosening foundation in the previous year; other plots are suggested to adopt ridge deep loosening and stubble preparation before sowing, and sow along with soil preparation.

2. Scientific seed selection and good seed treatment.

According to the sowing date, effective accumulated temperature and planting mode, the approved soybean varieties with high quality, high yield and stress resistance were selected to put an end to cross-area planting. For the plots that can not disperse soil moisture in time, early maturing varieties can be selected according to the delayed sowing date and local conditions. The seed purity should be more than 98%, the moisture content should be less than 13.5%, and the germination rate should be more than 85%. Before sowing, the germination test should be done and the soybean seed coating agent with national pesticide registration should be selected according to the occurrence of diseases and insect pests in the previous plots.

3. Sowing in soil moisture to improve the quality of sowing

According to soil temperature, soil moisture, timely and appropriate mechanical precision sowing. The plots with poor soil moisture should be deeply ditched, shallowly covered with soil, heavy suppression, timely sowing and early sowing; the plots with excessive soil moisture should focus on raising the ground temperature, opening ditches and drainage, so as to sow seeds at the right time and improve the sowing quality. to ensure that a single sowing to protect the whole seedling, protect the seedling, and lay a high-yield foundation. According to the selection of varieties, ecological conditions, soil conditions and agricultural machinery and tools, suitable cultivation methods are selected, and no-tillage planting is recommended in non-land preparation plots, and the cultivation mode of "double-row precision sowing on ridges" can be selected in the central and southern part of Northeast China. The cultivation model of "big ridge and three rows of dense planting" is popularized in the north of Northeast China, and "sitting water seed" or drip irrigation under plastic film is recommended in the western region.

4. rational fertilization to promote reduction and increase efficiency.

Adhere to scientific fertilization, adopt the formula of soil testing, and apply nitrogen, phosphorus and potassium fertilizer according to a certain proportion. Take lateral deep fertilization, layered application, bottom fertilizer application of 70% of the chemical fertilizer, fertilization depth of 10-15 cm; the remaining 30% of chemical fertilizer as seed fertilizer, the depth of 4-5 cm. It is encouraged to apply farm manure in combination with land preparation.

5. Precise application of pesticides to control weeds scientifically

According to the occurrence of local grass damage, herbicides with high efficiency and low toxicity were selected. In order to facilitate crop rotation, it is recommended not to use long residual herbicides such as imipramine, chlorosulfuron, fluorosulfen, Kuocaoqing, verapamil and so on. Re-spraying and leakage spraying should be avoided during operation to prevent drug damage and affect the planting of the next crop.

Generally speaking, when planting spring sowing soybeans in Northeast China, if we want to have a high yield, we need to select a good seed, turn over a good land, and after planting, we should apply reasonable fertilization, precise pesticide weeding and other management techniques. What is the yield per mu of soybeans in China at present? Will the price of soybeans rise in 2020?