In summer, the use of insect-proof nets to cover the cultivation of cowpeas can achieve better economic benefits. Generally, 1800-2000 kg of tender pods per mu are produced, with an output value of 1,500-1800 yuan.
1. Variety selection: Select high-yield and high-quality varieties, such as Ningjing No. 3 and Wang Zhongwang.
2. Daejeon preparation: 2500 kg of fermented organic fertilizer per acre and 25 kg of 45% high-efficiency BB fertilizer. Before the preparation of the land, it will be dried for 5-8 days. It will be planted in the north and south, and the sorghum will be planted in two rows. The width of the ridge is 1.2 meters, the depth of the ditch is 0.2-0.25 meters, the length of the raft is less than 50 meters, and the drainage ditch is opened around. The silver-gray insect-proof net is preferred to cover the greenhouse, and the surrounding area is compacted with soil. The live broadcast is planted from late June to mid-July. Generally, 4-5 seeds per hole, 22-25 cm hole spacing, 4000-4500 holes per acre, seedlings in the morning or evening after emergence, and seedlings per hole 2 3 strains. Seedling transplanting is carried out in advance from early June to early July, soaking seeds for 10-12 hours, germination, seedling age 20-25 days, 5-7 days before planting to strengthen ventilation and refining.
3, fertilizer and water management: Qi Miao or transplanted into a live early to promote seedling fertilizer, chasing 1 time thin manure. In combination with cultivating weeding, we apply 5 kg of urea per acre. When the base is full of flowers, apply 10 kg of urea per acre, wait for most pods to sit after 10 days, then apply 5 kg of urea, and add Shierling 600 times liquid or hibiscus 400 times liquid root for 2-3 times, 7 - 10 times a day. Properly control the water in the early stage to promote reproductive growth. When the first inflorescence begins to sit on the pod, the water is poured. After that, the watering should be properly controlled to promote the formation of more inflorescences. When most of the inflorescences on the main vines appear, the water is poured again. After the ground is slightly dry, the water must be watered. The soil is moist.
4, pruning snoring: seedlings start to vines when the frame, and promptly vine, the main vines below the first inflorescence of the side buds are completely erased, when the main vine climbed to the bamboo dome, timely topping, control growth, promote collateral Flower bud formation reduces nutrient consumption.
5, pest control: The main diseases of cowpea are rust, powdery mildew and leaf spot. Rust and powdery mildew can be controlled by 25% powder rusting emulsifiable concentrate 1000 times solution, and leaf spot disease can be controlled by 65% ​​mancozeb WP 500 times solution or 50% carbendazim WP 1000 times solution. The underground pests mainly include earthworms and cockroaches. They can be irrigated with 47% lesbian 1500-2000 times liquid. The snails can be mixed with 6% milicide snail 0.5-0.7 kg per mu.
6. Harvesting: The tender pods eaten are harvested before the grain is enlarged, so do not damage other flower buds.
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