Method for improving stress resistance of flue-cured tobacco by using growth regulator

Abstract

The invention belongs to the technical field of flue-cured tobacco planting, and particularly relates to a method for improving stress resistance of flue-cured tobacco by using a growth regulator. (2) transplanting: taking out the seedling raising floating tray, soaking roots with a compound agent a for 5-10 seconds, then taking out the seedling raising floating tray, and transplanting the seedling raising floating tray to a field; the compound agent a is formed by compounding indole-3-butyric acid potassium, pimacol and water; (3) field management: 20-25 days after transplanting, spraying a compound agent b on leaf surfaces; the compound agent b is prepared by compounding ascorbic acid, glycine, monopotassium phosphate and water; 1-3 days after topping of the tobacco plants, the compound c is sprayed on leaf surfaces; and the compound agent c is prepared by compounding brassinolide, monopotassium phosphate, sodium tungstate and water. The method can effectively relieve the influence of tobacco mosaic disease, difficulty in seedling returning due to overlarge transplanting soil moisture content, low temperature and drought in a clumping period, high temperature in a vigorous growth period and the like, further solves the problem of secondary growth of tobacco leaves, accelerates maturation and yellowing, and reduces tobacco planting loss of tobacco growers.

Description

technical field [0001] The invention belongs to the technical field of flue-cured tobacco planting, and in particular relates to a method for improving stress resistance of flue-cured tobacco by using a growth regulator. Background technique [0002] The flue-cured tobacco area has many factors such as climate reasons (mainly the frequent occurrence of "stuck neck drought"), tobacco planting soil reasons (mainly tobacco planting soil continuous cropping obstacles, C / N ratio imbalance) and variety reasons (mainly long-term planting of a single variety) and so on. The superposition of these obstacles restricts the quality of flue-cured tobacco leaves and the further improvement of tobacco farmers' income. [0003] Plant growth regulators are a class of synthetic compounds similar to natural plant hormones and hormones that are directly extracted or fermented from organisms. They are called buffers for stress conditions. Indirect regulation of crop growth. The main regulation...

AI Technical Summary

Problems solved by technology

[0002] The flue-cured tobacco area has many factors such as climate reasons (mainly the frequent occurrence of "stuck neck drought"), tobacco planting soil reasons (mainly tobacco planting soil continuous cropping obstacles, C / N ratio imbalance) and variety reasons (mainly long-term planting of a single variety) and so on. The superposition of these obstacles restricts the quality of flue-cured tobacco leaves and the further improvement of tobacco farmers' income.