Sowing time and harvesting time of soybean

Soybean planting is determined by climatic factors, generally sowing in spring and summer, generally sowing in spring around Qingming and harvesting in September; Summer sowing is generally carried out after wheat harvest, and it is harvested from September to 65438+1October. It can be divided into four stages: germination stage, branching stage, flowering stage and pod setting stage. Soybean varieties should be selected according to local farming conditions, planted in places with sufficient humidity, and covered with water, which is conducive to seedling emergence.

Soybean planting time

Northeast China is the main soybean producing area in China, and the sowing time varies with climate and region. Generally, it can be planted in spring and summer. Generally, spring sowing is around Qingming Festival, and the harvest period is September. Summer sowing is generally carried out after wheat harvest, and it is harvested from September to 65438+1October.

Soybean growth cycle

1. Germination period: This process generally begins after soybean seeds absorb 50% of the seed weight, and generally begins to germinate within 1~2 weeks after cultivation, depending on soil moisture, soil temperature and cultivation depth.

2. Branching stage: Generally, it takes about 40 days for soybeans to germinate, and the top stems and buds grow densely and begin to bloom.

3. Flowering period: about 45-50 days after soybean germination. The flowering period usually lasts about 30 days, and the sensitivity of soybean to short-term weather changes is lower than that of maize pollination period. The flowering height of soybean can reach 17 to 22 inches, which is about 50% of the mature height.

4. Pod setting period: 55-60 days after soybean germination, usually from late July to early August. When the weather is too high, drought occurs during flowering and pod setting, and the number of pods, the number of soybeans per pod, the weight of soybeans and the yield per mu of soybeans decrease.

Soybean planting cost and profit

Growing soybeans doesn't make money. According to the previous output of about 340 kg/mu and the price of 1 kg soybean and 1.6 yuan, when farmers get a subsidy of 255 yuan/mu, after deducting the costs of chemical fertilizer, bean seeds and land price, 1 mu soybean still has a reliable soybean profit of about 100 yuan.

Key points of soybean planting technology

Soybean varieties should be selected according to local farming conditions, cultivation habits and soil fertility, and the suitable sowing date is generally in early June, but not later than June 20. It is required to plant in sufficient humidity and water the head, which is beneficial to seedling emergence.