The latest field management of cowpea in open field

Cowpea is a common vegetable planted in spring, summer and autumn in southern China, suitable for all ages. Now it can be cultivated in greenhouse and other facilities, but the microclimate planting created by the facilities is still not as good as the cowpea grown in the natural environment. Organic vegetables have been highly respected in recent years, so today we would like to introduce the field management of cowpea cultivated in the open field. Without facilities, how to manage cowpea.

First, control fertilizer and water

Cowpea has well-developed root system and strong fertilizer absorption, so it is possible to apply less fertilizer, apply more base, and focus on fertilizer and water management in the field except base fertilizer. In the early stage, we should refine the seedlings, water less, urge the roots to bind and absorb water by themselves, promote the growth of the roots, and irrigate the seedlings in time after the slow seedlings are finished, which can ensure the rapid growth of the plants. Flowering without watering, to prevent falling flowers, before flowering to a deep irrigation, to ensure that the flowering period, the necessary moisture of the plant. The fruiting period is the peak of water and fertilizer demand, topdressing can be determined according to the amount of pods, about 1 topdressing to 2 times a mu of 300 jin of compound fertilizer, nitrogen fertilizer can be applied less, beans can fix nitrogen. Water once a week to ensure the moisture needed to transport nutrients and pods.

Second, adjust the plant

When the branches grow to 30 centimeters and begin to draw vines, you should quickly set up a frame for the growth to be afraid of climbing, and then start to leave lateral branches to remove all the lateral buds of the first inflorescence of the main vines. Do not let the branches grow, leave the above side branches, and pick the heart when the branches grow to about the height of the frame. No longer. And in the process of climbing up the branches, tie the vines and fix them to guide the growth.

Third, light temperature

Cowpea growth temperature between 20 and 30 degrees, too low growth is poor, the temperature is too high, easy to transpiration water loss, stop growing. It can also blossom and bear pods at 35 degrees, but the quality is low and may be underdeveloped. Growth below 15 degrees is only slow, but below 5 degrees may be at risk of freezing injury. It is required that the light can be satisfied in summer, but it may not be enough if it is planted too early. Generally, the flowering and fruiting period needs a long time of light and grows well. The time needed for plant growth can be reduced.

IV. Disease and pest control

The main disease is cowpea mosaic disease, which is a virus infection disease, which generally harms pods, mainly at the seedling stage. 40% omethoate can be sprayed once a week and several times more. The high incidence of coal fouling disease in the rainy season is mainly manifested in pods, which are sprayed with 1000-fold solution of 50% carbendazim. The main pest is pod wild borer, which mainly eats flowers, young pods, falling flowers and pods. It can be used to control the disease.

The above is the management of cowpea planting in the open field, which needs to be done according to the characteristics of cowpea. I hope the above content will be helpful to those in need and provide you with reference. Production should be combined with reality. Welcome to pay attention to more content in the future.