Cowpea is grown by dry seed sowing and the planting time is from February to August.

1. Planting method: dry seed sowing is used, and the sowing should be done in sunny and warm weather to facilitate seed germination and seedling emergence. Due to the strong growth potential of long cowpea, planting should not be too dense, the width of the bed is 1.5m, planting 2 rows, the distance between holes is 0.25~0.3m, and each hole is sown with 3~4 seeds. When long cowpea grows to 5-6 leaves, it can be erected, and it is best to choose the afternoon of a sunny day to do it, at this time, the stem and vine are more pliable, and it is not easy to be broken during the operation. Wrap the vines around the moso bamboo poles in a counterclockwise direction.

2, planting time: the general sowing period is from late February to mid-August, before April sowing to cover the ground film and small arches, when the temperature is high at noon, remove the film on the small arches in time to prevent scalded seedlings, and cover it well when the temperature is low in the morning and evening to prevent low temperature cold damage. When the temperature rises and the cowpea seedlings touch the small arches, remove the small arches in time. sowing after April, advocate the use of mulch cover cultivation, which has the effect of preserving moisture and fertilizer and reducing weed growth, and in spring, it can increase the soil temperature and promote growth.

Field management of cowpea

Disease and pest control, cowpea pests and diseases are more, the more harmful are root rot and pod borer. Root rot disease with 70% diclofenac 1500 times or 50% root rot 1000 times drenching the base of the plant or irrigation. After the emergence of seedlings 7 ~ 10d began to irrigate the first time. 0.25kg of water per plant, 1 time every 7d, 3 times in a row. The pod borer can be used 1.8% insect mite light emulsion 2000 ~ 3000 times, 25% Mighty emulsion 1000 times, 5% inhibition of Tai Bao and 5% Kardonecranes 1000 ~ 1500 times from the bud stage every 10d spray flowers 1 time, morning spraying effect is good.

Cowpea seedlings need to do a good job of maintenance and management after planting, daily need to be diligent in applying water and fertilizer, in the cowpea seedling growth to a certain stage, it is necessary to set up a shelf for it, so that its vine can grow along the bracket, the plant's first flowers and early fruits, it is necessary to remove the young leaf buds in a timely manner, to promote the growth of its flower buds.