A: Xu Ling, a consulting expert of the Yangling Association for Science and Technology and a professor at Northwest A&F University, said: There are several reasons for pepper falling and falling fruits: (1) Nutrition is not coordinated. Due to excessive planting density or excessive application of nitrogen fertilizer, the pepper plants become long, and their nutrition and reproductive growth are out of balance, causing the flowers and fruits of the pepper to fall off. (2) Unfavorable environmental conditions. Low or high temperature, facility cultivation, poor ventilation in the greenhouse or greenhouse, and excessive humidity, the flowers of the pepper cannot fall off normally due to powder. (3) Pest damage. Hot peppers cause viral diseases, anthracnose, leaf blight, etc., which can easily cause falling flowers and fruits. Tobacco worms and cotton bollworms can also cause fruit shedding. Therefore, analyze the causes of pepper falling flowers and fruits, strengthen the management of comprehensive cultivation techniques, and take preventive measures in a targeted manner. It can also be sprayed with 0.2-0.3% potassium dihydrogen phosphate, 0.3-0.5% urea solution, 1-3% superphosphate filtrate, 0.1-0.2% boric acid, 0.05-0.01% zinc sulfate during the flowering stage 2-3 times, enhance the photosynthesis function of pepper leaves, promote the better differentiation and formation of pepper flower buds, and also significantly improve the flowering and fruit setting rate of pepper. For pepper fields with signs of prosperity, use plant growth regulators such as paclobutrazol, chlormequat, metosine, auxin, etc. (use concentration according to the instructions) to control the growth (spray high concentration of potassium dihydrogen phosphate can also be used To achieve the effect of controlling prosperity). Prevent peppers from falling flowers and fruits: You can use gibberellin + indoleacetic acid + brassinolide (concentration according to the instructions) for foliar spray before the peppers bloom, which can not only promote better differentiation of pepper flower buds, but also enhance pepper plants Disease resistance and stress resistance, but also can promote plant root growth, fruit expansion and development, while reducing the incidence of falling flowers and fruits. At the same time, strengthen the prevention and treatment of diseases and insect pests during the fruiting period of pepper, and reduce the flowers and fruits.

Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone

Tuya Intercom

Tuya Intercom System, China Tuya Intercom System, Tuya Intercom Video Door Phone, Building Tuya Intercom System, Tuya Intercom Manufacturer

Zhuhai Mingke Electronics Technology Co., Ltd , https://www.zhmkdz-electronics.com