Key points of cultivation techniques for mulching spring cowpea

Cowpea planting has the characteristics of short cycle, small investment, labor saving and labor saving. After harvesting, cowpea can be planted with various economic crops such as summer corn, summer peanut and vegetables. The following is a brief introduction to the cultivation techniques of the film spring cowpea.

Fertilize the land. Choose loamy soil with medium or fertility, apply 5000 kg of decomposed farmyard manure, and 30 kg of nitrogen, phosphorus and potassium ternary compound fertilizer. When the surface is frozen in the early spring, combined with fertilization and tillage, the scorpion is 50 cm wide and 50 cm apart, and a horizontal line is used every 3 m. Then choose a sunny and windless weather film and compact the film to prevent the wind from being destroyed.

Sowing at the right time. When the temperature is stable at 10 °C for 5 consecutive days, it can be sown. In some areas, the sowing time of mulching film cultivation can be planted before the rainy season in early April.

Field management. When the seedlings are broken, use the soil to compact the mulch around the seedlings to prevent the wind from tearing the mulch. After the stormy weather, carefully observe that if there is water in the membrane, the water should be removed, and the damaged membrane should be pressed or re-coated in time. When the bean seedling grows to 3 to 4 pieces of true leaves, the first water is poured, and 15 kg of nitrogen and potassium fertilizer is applied along with the water, and the fertilizer is added once after the peak of the pod in May, and the quick-acting nitrogen fertilizer is 20 kg per mu.

Timely harvest. Cowpea grows faster, and it takes about a week from the flowering of the pod to the harvest of the pod. The mulch spring cowpeas generally enter the harvesting period before and after the “May 1st”. At this time, it is the peak season of market demand, the consumption is large, and the price is also high. It can be harvested early and obtain higher benefits.

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