Top dressing and irrigation: The first water is poured from the common seedlings to the first inflorescence and the subsequent inflorescences, and combined with fertilization. Generally, 1,500 kg of cake fertilizer or 300 kg of chemical fertilizer is applied per hectare and combined with a rack. After entering the pod stage, keep the glutinous surface moist. Spray 600-800 times the new high-fat film on the ground and plant surface to ensure evaporation, evaporation, heat preservation, antifreeze, anti-soil compaction, suffocation and isolation of pests and diseases; Chemical fertilizers. Each urea or ammonium sulfate 150-225 kg. In addition, foliar foliar spray of 0.2% to 0.5% of boron, molybdenum and other micro-fertilizers are beneficial to scarring. The cowpea has a long harvest period. If the fertilizer is not enough, the fertilizer is prone to defertilization. The result is less scarring, less growth, defoliation, and no side branches. Therefore, we must pay attention to the continuous supply of water and fertilizer throughout the collection period.
Temperature management: Within 1 week after planting, the greenhouse is not ventilated, and the temperature is kept at 28~30°C during the day. If the seedlings are wilted, they can cover the shade of the grasshopper and reopen after normal recovery; in the afternoon, the temperature should be around 18°C before covering the grass in the afternoon. The minimum temperature is 15°C. Reducing temperature after moderate seedlings, exhale at 25°C during the day, maintain 20~25°C, close tuyere in the afternoon to 20°C, reduce to 17°C to cover grasshoppers, keep night temperature at 12~17°C, and the temperature during daytime cannot be high after flowering and scabbing. At 30°C, the night temperature is preferably above 15°C.
