New planting techniques for high yield of soybean

Soybean is one of the most important food crops in China, with a wide range of cultivation, especially in Northeast China, is the main soybean producing area in China. So, how can soybeans be planted with high yield? The following is to introduce the new high-yield planting technology of soybean.

1. Land preparation

After the harvest of the previous crop, sprinkle fermented organic fertilizer on the land, rake the fertilizer into the soil with a rake, and then turn it deeply, with a depth of 22-25 cm, with a width of 2-3 meters and a row spacing of 3 meters.

2. Seed selection

According to the characteristics of different places, select the excellent varieties suitable for local cultivation, because only the selected varieties can ensure a good seedling emergence rate and finally achieve high yield.

3. Sowing seeds

Soybeans can be sown from February to early March (south), from late March to early April (Yangtze River region), from late April to early May (Huanghai, Huaihai and northern regions), in summer from May to early June (southern), June (Huanghai, Huaihai), or from late July to early August in autumn. Irrigate the planting plot once before sowing, so that the soil water content is about 22%, and then sow. Each hole has 2-3 seeds, and the distance between the holes is 0.33 meters.

4. Ploughing and weeding

Carry out the first intermediate ploughing before the first compound leaf, hoe the seedling eye grass, do not hurt the seedlings, loosen the topsoil; carry out the second intermediate ploughing when the seedling height is about 10 cm, so that the grass does not leak, do not hurt the seedlings, and do not press the seedlings; the second mid-tillage is carried out for the third time for about 10 days, so that deep loosening and more soil can be done.

5. Fertilization

In addition to base fertilizer, in the early flowering stage of soybean, urea can be applied 3-5 kg per mu according to the seedling condition; in the podding stage, 40-50 kg per mu of 2% superphosphate clarification solution and 30-40 kg per mu of ammonium molybdate concentration diluent can be used, and the two are mixed and sprayed on the leaf surface.

6. Disease and pest control

The diseases of soybean include gray spot disease, fungal disease, bacterial disease, virus disease, cyst nematode disease, root knot nematode disease and so on. The pests include heart borer, meadow borer, bean pod borer, bean stalk fly, bean stalk black miner, red spider, aphid and so on.