In early spring, the temperature is high and low, and the temperature difference is large. According to the author's analysis, there are several reasons and solutions for falling cowpea and falling crops for reference by farmers. I. Varieties: Individual cultivars were cultivated in early spring, and their cold resistance and stress resistance were poor. Second, the climate impact: After the Spring Festival more than cold and cold weather. Third, the cultivation of misunderstandings: (1) early flowering fertilizer water supply or watering is too large. (2) The temperature difference between day and night in the shed is too large. Many farmers adopted "early pull and late cover" on the use of cold curtains, so that the night temperature in the shed fell to around 10°C or even lower. Then the temperature is too high during the day. In the management of the air outlets, the feet are often pulled once or covered tightly, causing the temperature in the shed to rise sharply or drastically, causing the plants to have a “coldâ€. Should adopt the "early pull early cover, gradually opening and closing the outlet" approach, so that the temperature within the shed to maintain 18 °C ~ 28 °C, not less than 13 °C, not more than 32 °C. (3) Do not pay attention to rooting and rooting, but only focus on scarring. As the saying goes: “The root system is the stomach of the plant body.†In the cowpea cultivation process, it prevents both the acidity of the soil and the alkalinity of the soil. We must also pay attention to the rational use of chemical fertilizers. According to relevant information, carbohydrates account for about 96% of all green plants, while nitrogen, phosphorus, and potassium account for about 4%, of which potassium is about 2.2%, nitrogen is about 1.4%, and phosphorus is about 0.4%. Therefore, cowpea is In the cultivation process, the emphasis on the use of chemical fertilizers is one of the important reasons for falling flowers. (4) Nutrition regulation is not timely, many farmers have a kind of mentality, “pre-promoting, medium-term flowering, and late-phobiaâ€. In fact, in the process of promoting prostitution in the early stages, a frail situation of “fine, long, thin blades†has been formed. Therefore, in the management process, we must pay attention to: the main nutrient regulation, spraying a certain number of humic acid (such as high Mei Shi, Hui Man Fung, Poole, Zhuang Jia Han 300 to 400 times liquid) foliar fertilizer or amino acid leaves Fertilizer (such as all things spring, agricultural science star, etc.). And combined with pouring small water flushing bio-organic humic acid flushing (such as foreign strong red paste) 12 to 15 kg per mu. (5) Pay attention to the control of pests and diseases: In the early spring, cowpea often causes anthrax, leaf spot, gray mold, stem rot (or sclerotinia). Insect pests include whiteflies and roundworms, which can be controlled in combination with nutrient regulation. Egg Products,Egg Noodles,Egg Replacer,Egg White Protein Powder ZHONGSHAN G.H.L. TRADING CO., LTD. , https://www.ghltrade.com
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