High-yielding cultivation techniques of cowpea
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Kidney beans are one of the vegetables that people love. Compared with other vegetable crops, cowpea is light, easy to manage and adaptable. However, the output of cowpea is not high, and the output of fresh taro is generally around 26,000 kilograms per hectare. The farmers in the rural area of ​​Shenghua Township in Shenyang City chose the fine varieties of 901 and Sanyin Green. Using reasonable cultivation techniques, the yield of fresh sorghum can reach 38,000 to 45,000 kilograms per hectare. The main technical measures are as follows: 1. Selection of disease resistance, High-yield varieties such as 901 and Sanyue green are selected and sowed before sowing, removing pod seeds, immature light-colored seeds, and broken, rotten or sprouted seeds. Selecting seed before sowing is very important for ensuring the whole seedlings. 2. Select drainage with good fertility. The land with irrigation conditions is implemented with early ploughing and deep turning, so that it can be used for fine soil preparation in order to improve soil water conservation and fertilizer retention. The rhizobia of cowpea are not very developed. In addition, the ability of rhizobia to fix nitrogen is relatively weak in the early stage of plant growth. In order to promote the early growth and development, it is very important to apply enough base fertilizer. The land of good fortune is fertile. They took 31.5 cubic meters of chicken manure per hectare, and 262.5 kilograms of nitrogen, phosphorus, and potassium compound fertilizers provided sufficient nutrition for the early period of cowpea to lay a good foundation for growth throughout the year. 3. Timely sowing When the soil is 10 centimeters deep, the soil begins to sow when the soil temperature stabilizes above 10°C. Low temperature in early sowing, the seeds are easily mildewed, resulting in serious lack of seedlings; late sowing and harvesting are late, unfavorable and high yield. The sowing time in Shenyang is generally in early May. If mulching is used, the sowing date can be advanced, and fresh pods can be listed one week ahead of schedule. Planting spacing is 60 centimeters and 40 centimeters, and 3 to 4 seeds are planted per seedling, 3 seedlings per seedling, and 120,000 to 150,000 seedlings per hectare. 4. When the vines climb into the vine, the vines are racked and the side vines extend to a certain length (about 50 cm). 5. Appropriate management of fertilizer and water by fertilizer and water management and regulation of the relationship between vegetative growth and reproductive growth are important measures to ensure high yield of pod beans. If the previous fertilizer and water is too abundant, the nutrient grows vigorously, resulting in fewer inflorescences and delayed flowering and scarring. Therefore, in the early stage, it is necessary to control the moisture as much as possible, pouring the first water when the flowers are sitting, and pouring the second water after the formation of the inflorescence. After seeing soil moisture and timely irrigation, it is necessary to keep the soil moist and to control the humidity in the field so as to avoid disease. In the early stage of flowering, the situation of the field is observed, and the topdressing of urea is 75 kg to 112.5 kg per hectare; during the prosperous period, the urea is topdressed with 37.5 kg to 75 kg per hectare; the middle and late stages of fertilizer are relatively sufficient, allowing the plants to form more lateral vine inflorescences. The main inflorescences on the main vines continue to sit and grow, extending the collection period until around mid-September. 6. Timely harvesting of cowpea is a continuous harvest of crops, which is generally harvested before the seeds are swollen and is harvested every 2 to 3 days. In the case of adequate fertilizers and robust plants, each inflorescence of Kidney Bean can be up to four to six, so care should be taken when harvesting not to damage the top flower buds. For the production of crops, harvesting should be carried out in a timely manner in order to avoid mildew.