A fertilization method for reducing bacterial wilt and bacterial leaf spot of pepper and improving drought resistance of pepper

Abstract

The invention relates to a fertilization method for reducing capsicum bacterial wilt and bacterial leaf spot and improving capsicum drought resistance. In the present invention, 20-30kg of pure nitrogen, 5-10kg of pure phosphorus and 20-40kg of pure potassium are applied per mu during the whole growth period of pepper; 9-14kg of pure nitrogen and 2.5-5kg of pure phosphorus are applied per mu in combination with soil preparation before pepper transplanting and pure potassium 13-27kg as the base fertilizer. After the peppers are planted, various fertilizers are applied in different growth periods, and at the same time, the pyrroloquinoline quinone solution with a mass concentration of 100-300nmol / L is applied at a rate of 15L / mu each time. A total of 3 applications were applied. The present invention selects different fertilizers according to different growth periods of peppers, among which a variety of different types of potassium fertilizers are used in combination, and pyrroloquinoline quinone solution is added to improve the adaptability of peppers to bacterial wilt, bacterial leaf spot and arid environment , reduce the use of pesticides, and have greater economic and ecological value.

Description

technical field [0001] The invention relates to an application method of crop fertilizer, in particular to a fertilization method for reducing capsicum bacterial wilt and bacterial leaf spot and improving capsicum drought resistance. Background technique [0002] Capsicum is an important solanaceous vegetable with rich nutrition. Its vitamin C content is 5 times that of tomato, 20 times that of eggplant, and the content of carotene is 7-15 times that of tomato and 20-35 times that of eggplant. Pepper is one of the vegetable crops with the largest planting area in my country. In 1997, the total output of pepper in my country ranked first in the world, with an annual output of 28 million tons, accounting for about 46% of the world's pepper production. The planting area and economic value of pepper have surpassed cabbage to become the first A large vegetable crop. [0003] Capsicum bacterial wilt and capsicum bacterial leaf spot are two important diseases in the planting proces...

AI Technical Summary

Problems solved by technology

[0003] Pepper bacterial wilt and pepper bacterial leaf spot are two important diseases in the process of pepper planting, which cause death or yield reduction of pepper after the onset, causing great losses to agricultural production

At present, most of the above two diseases are controlled by using pesticides or breeding resistant varieties, which can reduce the incidence of peppers and reduce losses to a certain extent, but the residual pesticides threaten human health and pollute the soil, and the resistance of resistant varieties is easy. lost

At the same time, the important growth period of hot pepper in summer is high temperature and less rain, and if the pepper is not irrigated in time, it will easily cause economic losses.

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