Cowpea is actually cowpea, but cowpea is not completely cowpea. Cowpea and beans are different in shape. Cowpea is what we usually call long bean, which is about 40 cm longer than other beans, and its maturity is also different from other kinds of beans. Cowpea usually ripens in summer, and the ripening time of other beans is uncertain.
Cowpea, an annual twining herb vine or nearly erect herb of Leguminosae, has many branches, tall plants, curved branches, opposite leaves, short stems, nearly round flowers, small white, fragrant, polygonal, angular, spherical, dark brown fruits, small seeds and sickle-shaped.
breeding method
The growth characteristics of cowpea determine that it has high requirements for soil conditions and plot environment. Cowpea root system is short, which requires moderate soil porosity in the planting area. For the normal growth of cowpea roots, it is necessary to avoid continuous sowing as much as possible. Before cowpea planting, it is necessary to carry out corresponding soil preparation operations to effectively clean up the stubble of the previous crop. At the same time, weeds and sundries on the surface are removed to ensure that cowpea planting is not affected by pests and diseases.
It is necessary to burn all the weeds and previous crops to reduce the probability of infection when cowpea is planted. After all the impurities on the surface of the plot are removed, it is necessary to do the corresponding deep ploughing work, with the depth controlled at 30 cm. After the deep ploughing work for 3-4 days, the ridging operation shall be carried out to ensure the ridge spacing at 70 cm. Special attention should be paid to the application of sufficient base fertilizers, mainly nitrogen, phosphorus and potassium fertilizers, according to the nutrient requirements of cowpea growth to ensure the normal growth of cowpea.