High quality and high yield water and fertilizer management technology of cowpea
April 27 09:16:04, 2021
Kidney beans are fat but not fat, water and fertilizer management mainly includes three aspects: First, apply base fertilizer, timely fertilizer. The second is to increase phosphorus and potassium fertilizers, appropriate amount of nitrogen fertilizer. The third is to control first and promote it to prevent leggy and premature aging. Plant nutrition is the key to increasing inflorescence and pod formation. Sufficient basal fertilizer can promote the growth of roots and the activity of rhizobial bacteria, form more nodules, make the early stem vines grow robustly, differentiate more flower buds, and lay a foundation for high yield. Basal fertilizer generally applies 2,000 to 3,000 kilograms of organic manure per acre, 25 to 30 kilograms of superphosphate, and 50 kilograms of plant ash. Before the flowering and sprouting of cowpea, the requirement of water and fertilizer is not high, and the management is mainly controlled. The basal fertilizer is adequate, and it is generally no longer top-dressing. When the weather is dry, it can be properly watered. If there is too much water and fertilizer, the stems and leaves will grow in length, causing the inflorescence to rise and the number to decrease, forming a vacancy in the middle and lower parts. When the plant's first inflorescence pods were sitting, the following inflorescences appeared one time in combination with topdressing water, applying 10-15 kg of nitrogen, phosphorus, and potassium fertilizer per acre, and irrigation of 20-30 cubic meters. After scabs, the soil is often kept moist, and the top dressing is applied once every 2 to 2 weeks to keep the plants robust and flowering. Into the harvest period of soybean meal, the need for more water and fertilizer, can be followed by 1 irrigation fertilizer, 10 kg of urea per mu, 20-25 kg of superphosphate, 5 kg of potassium sulfate or 40 kg of plant ash, 20-30 cubic meters of irrigation water Meter. If the supply of water and fertilizers is insufficient, plant growth will decline, and flowering and falling will occur.
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