When will adzuki bean be sown

Adzuki bean is commonly known as red bean, is a common edible bean, can cook porridge, make bean paste and so on, so when to sow red bean?

I. growth habits of red bean

Adzuki bean is an annual erect or twining herb, flowering in summer and bearing fruit from September to October. It is cultivated in the north and south of our country.

Adzuki bean has a preference for temperature, light and waterlogging. It needs more than 10 ℃ for the whole growth period, and the effective accumulated temperature is 20-25 ℃. Generally, seedlings begin to germinate above 8-12 ℃.

Adzuki bean is sensitive to light, early sowing prolongs the growth period, and the mature period is not earlier. Therefore, the introduction from high latitude to low latitude will mature earlier, and the mature period will be prolonged when introduced from low latitude to high latitude.

The growth length of adzuki bean varies from variety to variety, the short growing period can be in 60-90 days; the growing period is 80-120 days, adzuki bean needs the most water before and after flowering, high temperature and drought in flowering and podding period, it is easy to cause falling flowers and pods; too wet, the plant is easy to lodge.

Adzuki bean has strong adaptability to soil and can grow in both slightly acidic and slightly alkaline soil.

When will adzuki beans be sown?

Generally, the seeds are sown in the middle and last ten days of May, but the planting time is not exactly the same in different areas, so the planting time should be adjusted appropriately according to the local climate. In addition, sowing is also divided into spring sowing and summer sowing, spring sowing time is generally mid-late April, summer sowing time is from late May to early June.

Adzuki bean is an annual legume crop. Wheat, corn, sorghum and other gramineous crops should be selected in the previous crop to avoid continuous stubble with leguminous crops so as not to reduce yield due to diseases and insect pests.

The main forms are:

1. Adzuki bean mixed with summer corn and summer millet: when sowing summer corn or millet, adzuki bean will be planted with it. When fixing the seedlings, pay attention to the red bean seedlings with a certain number of plants left between corn plants.

2. Interplanting adzuki bean with spring corn, sorghum and millet: interplanting spring corn with adzuki bean at 1:1 or 2:2. Generally, after the corn seedlings are fixed, red beans are interplanted between the rows of corn.

3. Interplanting adzuki bean in spring sweet buds: sowing adzuki bean in the furrow in the sweet potato field, 5-6 plants per pier, the adzuki bean matures early, when the red bean is harvested, it is the second peak of sweet potato root expansion, which does not affect the yield of sweet potato and harvest dozens of jin more adzuki beans.