Precise management measures to promote spring precocious cowpea

Kidney beans are rich in nutrients and they are popular vegetables. Kidney beans are resistant to high temperatures, hi light, more drought tolerant, and impatience. In order to make cowpea market in the morning and get early maturing, high yield and high efficiency, it is often cultivated in facilities such as greenhouses in the spring.

First, fertilizer and water management. The general principle is to prevent stems and leaves from prolonging in the early stages and to prevent premature aging of the plants in the later period. Generally on the basis of applying base fertilizers according to standards, the seedlings are topdressed for 1-2 times according to their growth potential. Each time, 750 kg of diluted manure water or 2.5 kg of urea is applied per acre; 25% nitrogen-phosphorus potassium ternary compound fertilizer 10-15 kg. Seedlings should be properly controlled water, to prevent stems and leaves lengthy and reduce inflorescences; flowering and waterlogging period more water, about 7 days to pour water, harvesting period combined with water chase fertilizer material. The kidney beans cultivated in spring facilities have a long period of flowering and podging, and more attention should be paid to the top-dressing, combined with the spraying of polybasic potassium dihydrogen phosphate, multi-element boron fertilizer and other foliar fertilizers to prevent premature degeneration of the defertilizer.

Second, lead the vine. Kidney bean shoots grow quickly, with 5-6 leaves hanging on a scaffold to attract vines. The early stem vines have a weak winding ability and need to be artificially wound around the vines and selected to be carried out in the morning without dew or cloudy days to prevent breakage of stem vines.

Third, pruning. Combining the vines for reasonable pruning, the lateral branches below the first inflorescence are usually removed to a length of 3 cm to ensure that the main stem is stout; the side branches above the first inflorescence remain 1-2 topping; when the main vines reach the roof, the topping Take heart to control growth, and promote the formation of flower buds in the lower branch.

Fourth, pest and disease control. The main diseases of cowpea include rust, leaf spot, and root rot; insect pests include pods, leaf miners, and fleas, and comprehensive control techniques should be used. Rust can be controlled by triadimefon, leaf spot can be controlled by thiophanate-methyl, and root rot can be controlled by carbendazim, enemy coughone, and green sterilizer. To control underground pests such as ground tigers, in addition to soil treatment, fresh bran mixed with trichlorfon can be used to seduce in the field around the evening. Soybean meal can be used to kill insects double, anti-Taibao, Ruijin special prevention and treatment, leaf miner can be used Le Siben, phoxim, control, killing and killing can be used to kill the net and other agents.

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