Is it ok to plant adzuki beans in Shangzhi area from summer solstice?

Adzuki beans can be planted in Shangzhi area from summer solstice, generally in mid-May in southern areas and in late May in central and northern areas.

Biological properties

Red beans Red beans like temperature, light and waterlogging. The effective accumulated temperature in the whole growth period is 2000-2500℃ above 10℃, and generally it begins to germinate and emerge above 8- 12℃. Red beans are sensitive to light. Early sowing prolongs the growth period and does not mature early. Therefore, the introduction from high latitude to low latitude will be premature, while the introduction from low latitude to high latitude will prolong the maturity.

The growth length of red beans varies from variety to variety. The shortest growth period can be 60-90 days; The growth period is 80- 120 days. Red beans need water most before and after flowering, and it is easy to drop flowers and pods when they encounter high temperature and drought during flowering and pod setting. Too wet, plants tend to lodging. In the stage of grain bulging and maturity, sunny days are beneficial to photosynthesis and increase grain weight. Red beans grow best in loose soil rich in humus. Red beans planted in the sand are red and shiny. Red beans planted in loam, deep red and dark red. Adzuki bean has strong adaptability to soil and can grow in slightly acidic and alkaline soil.

Soil preparation and fertilization

Red beans need more nitrogen fertilizer. Although rhizobia can fix nitrogen, the application of farm manure can significantly increase the yield, especially the application of phosphorus and potassium fertilizer. If base fertilizer is not applied, topdressing available nitrogen and phosphorus fertilizer 5-6 days before flowering in the growth period of red beans can promote the increase of flowers and pods and prevent pod dropping.

Planting pattern

Monocropping, intercropping and interplanting of red beans. Because shade tolerance is mostly planted through intercropping and interplanting,

Cooked adzuki bean

Few people are single. The main forms are:

1. Red beans interplanted with spring corn, sorghum and millet. The interplanting rate of spring corn and adzuki bean is 1: 1 or 2: 2. Generally, after corn seedlings are fixed, red beans are interplanted between rows of corn.

2. Red beans are mixed with summer corn and summer grain. When sowing summer corn or millet, red beans should be planted at the same time. When fixing seedlings, pay attention to leave a certain number of red bean seedlings between corn plants.

3. Intercropping cotton and red beans. After the emergence of cotton in spring, sow a row of red beans in the hole of Dahang, and choose small and early-maturing varieties of red beans. This intercropping method is beneficial to ventilation and light transmission at the lower part of cotton, and can reduce the shedding of buds and bolls and peach blossom. Sometimes red beans are replanted on plots where cotton, peanuts, sweet potatoes and other crops lack seedlings.

4. Spring Ganlei interplanting red beans. 5-6 red beans are planted on each gully pier in the sweet potato field. Red beans mature early, and are at the peak of the secondary expansion of sweet potato roots at the time of harvest, which does not affect the yield of sweet potatoes and also harvests dozens of kilograms of red beans.

Tiantuan management

In order to promote the root system development of adzuki bean at seedling stage, more intertillage should be used to loosen the soil, which is also beneficial to the growth of nodules. When it grows vigorously after flowering, it can be properly topped to remove invalid flower branches, so that nutrients are concentrated in the pod and the seeds are full. Before and after flowering, it is the period when red beans need water most. At this time, lack of water will cause a large number of flowers and pods to fall off. Therefore, water in time in case of drought. Prevention and control of aphids and red spiders in the early growth stage of red beans, prevention and control of stem borers and pod eating in the middle and late growth stage. Control of mung bean weevil during storage. Insect control at a high temperature of 50℃ before storage; Drug fumigation; Hypoxia preservation and other measures.

Harvest and storage

Spread the red beans without sundries, put them into plastic bags in units of 3-5 kg, add some chopped dried peppers, and seal them. Put the sealed plastic bag in a dry and ventilated place. This method can prevent moisture, mildew and insects, and can keep red beans 1 year. You can also soak red beans in boiling water for more than ten minutes, then take them out to dry and put them in a jar for storage, which can be stored for a long time without insects. Put two or three cloves of garlic in a container or bag filled with red beans, and it can be kept from being eaten by insects for 2 to 3 years.