Light is drawn early as early as the straw curtain, cloudy daylight fills the light.
The temperature is maintained at a proper temperature to prevent the temperature of the shelf from being too high or too low, preferably 18 to 25°C. Less than 18 °C or higher than 28 °C is not conducive to flowering and scarring, resulting in falling flowers. Above 32°C, not only falls down, but also affects quality. When the greenhouse temperature is higher than 28°C, it is necessary to ventilate and reduce the temperature, and it is also possible to use a strong leaf type quick green phoenix or a light-breathing fast green fengfeng to spray, so as to achieve the effect of protecting flowers and health.
Before the first flowering stage and the last stage, the fertilizer should not be topped with water. When the first inflorescence is sitting, it starts to top-dressing and watering. Under the mulching conditions, the method of pouring dark water under the membrane should be adopted. Before applying water, apply organic bio-fertilizer, 75-120 kilograms per mu, open the ditch (30 to 35 centimeters from the base of the root), and cover the soil with water after topdressing. Usually 10 to 15 days watered and irrigated with a fertilizer, per gram of potassium sulfate water rushing 12 to 15 kg. Combining control of anthrax, leaf spot, and grey frost, Tianda 2116 and Nongxiangyuan were sprayed again. In the middle and late period, topdressing three yuan compound fertilizer (potassium humate type), 10 to 15 kg per mu.
About 16 days after flowering, cowpea has the longest length and the largest fresh weight, and the best products are for harvesting. When harvesting, attention should be paid to the protection of flower buds, because there are 8 to 10 flower buds on an inflorescence, and only 3 to 5 flowering and scabbing, and the flower buds retained after picking continue to develop, and the flowering knots are secondary. In addition, the supply of fertilizer and water should be timely after picking, and after each harvesting peak, flushing or chase fertilizer should be used to strengthen disease prevention and control.
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