First, insert vines
When the cowpea plant grows to a height of 30 cm, it must be promptly inserted. Use a 2.5-meter-long bamboo pole, insert the “person†shaped frame, and pull a horizontal wire in the upper part of the frame. According to the size of the cultivation field, the length of the wire It is advisable to fix the two ends of the wire to the stake or cement post (deeply buried in the field) at 50 meters, and then secure the bamboo stick and wire with the rope. The filaments growing from the stems and leaves of cowpea can be wrapped around bamboo rafts, and they can be attached to bamboo rafts to grow on their own.
Second, water and fertilizer management
Seedling stage should strictly control the amount of watering, no drought, no pouring, before transplanting seedlings. In order to prevent seedlings from prosperous, you can spray chlormethorine 1 times, which is good for roots under the cowpea, stout stalks, lay the foundation for high yield. When the cowpea enters the flowering stage, the fertilizer and water management should be strengthened, which is conducive to promoting the formation of flower buds and the growth and development of the bean pods and increasing the yield. In the early stages of fertilization, fertilizing farmyard manure should be the main method, first open the ditch, then spread the manure evenly in the ditch, and finally cover the soil. After entering the middle stage of scarring, nitrogen, phosphorus, and potassium ternary compound fertilizers should be used as the main method. The method of acupoint application or furrow application should be adopted. The amount of mu should be about 20 kg. Can also be applied with the biogas slurry, usually 10 to 15 days topdressing once. In the later stage of the scab, with the weakening of the leaf's absorption function in the root system, the foliar dressing can be carried out. The application of potassium dihydrogen phosphate spraying has a significant effect on increasing the yield at the later stage.
Third, pest control
The summer cowpea production period is under the environment of high temperature and high humidity, and the occurrence of pests and diseases is more serious. Therefore, strengthening the scientific control of cowpea pests and diseases is the most crucial part of capturing production. The common disease is rust, which mainly damages the leaves. The chemical control can be controlled by 25% to 30% of Dankein 1000 times spray. Virus diseases often cause leaf wrinkle and atrophy, plant dwarf, seriously affecting the yield, can be used to spray water in the field, increase the humidity; use 10% imidacloprid to eliminate aphids and other media; apply virus A, phytosanitary and other agents spray control. Bean pods are one of the main pests that harm cowpeas. The prevention and control method is to remove the flowers in the field and remove the damaged pods and pods to reduce the source of insects. Use the cypermethrin spray to control and spray once every 10 days. Note that the spray should be uniform. Red spiders often occur in August-September high-temperature and drought conditions, the main damage to the leaves, causing leaves yellow water loss, a direct impact on the yield of kidney beans, can choose to use konjac or avermectin spray water 1000 to 1500 times.
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