The best time to plant soybeans

1. Sow spring soybeans before and after Tomb-Sweeping Day. Sowing soybeans in the open air in spring requires that the soil temperature must be above 65438 05℃ and the soil humidity is appropriate before soybean seeds can germinate. The ground temperature is too low to meet the requirements of soybean germination, so it can't germinate for a long time. Under the action of soil microorganisms, it will be moldy and rotten, which will make the seeds unable to germinate normally. If it is necessary to sow in advance, plastic film can be used to raise ground temperature and promote seed germination. Generally speaking, the sowing time of spring soybean begins around Tomb-Sweeping Day. There is an agricultural proverb in rural areas, "Before and after Tomb-Sweeping Day, plant melons and beans", that is, sowing in early April to mid-April, the seed consumption per mu is about 10 kg, the whole growth period is100 ~10 days, and harvesting can be carried out in late July.

Sow summer soybeans in early June. Sowing conditions of soybean in summer are relatively loose. The temperature is high in summer, and the soil temperature is suitable for the germination and growth of soybean seeds. There is more rain in summer, and the soil moisture is suitable for soybean germination. Weed control methods should be properly handled when sowing summer soybean, including weeding before emergence after sowing, stem and leaf treatment after seedling and artificial weeding. Closed herbicides such as pendimethalin, acetochlor, gaicaoneng, Hennessy, etc. The effect is good after sowing and before emergence. Herbicides for post-seedling stem and leaf treatment include quizalofop-p-ethyl, quizalofop-p-ethyl, stem and leaf herbicides and so on. Summer soybean is suitable for sowing in early June, and the seed consumption per mu is about 15 kg. The whole growth period is about 140 ~ 150 days, and it is harvested in the middle and late June of 10.

3. In short, soybean planting is generally divided into two seasons: spring soybean and summer soybean. Due to regional differences and different climatic conditions, we should choose the appropriate sowing date according to the local actual situation, and we can't force a unified sowing date.