Cultivation method for concentrated boll opening of cotton in cotton regions of South China

Abstract

The invention discloses a cultivation method for concentrated boll opening of cotton in cotton regions of the South China. Through unique processes of seeding, fertilizing, topping, ripening and the like, cotton colony structure and cotton fruiting and boll opening modes are optimized, the total growth period of the cotton can be shortened by 60-70 days, and especially, the boll opening period of the cotton is enabled to be concentrated within 30-40 days, so that convenience is brought to manual concentrated cotton harvesting or mechanical cotton harvesting, 4-5 workers in harvesting links can be saved by manual concentrated cotton harvesting compared with current cultivation methods, and a season contradiction between cotton production and winter crop soil preparation is solved. The cultivation method is especially suitable for popularization and application in multiple-cropping cotton regions of the South China.

Description

Technical field: [0001] The invention belongs to the technical field of cotton cultivation, and in particular relates to a cultivation method for concentrated opening of cotton in southern cotton regions. Background technique: [0002] At present, in order to make full use of light and heat resources, cotton production in the southern cotton region adopts high-yield cultivation techniques such as seedling raising and transplanting, large trees and sparse planting, prolonging the growth period of cotton, and giving full play to individual potential. This technical approach is very effective in saving the amount of seeds used, avoiding field shading at the budding stage, and exerting the potential of individual cotton plants to increase production. For a long time, especially since the promotion of hybrid cotton, it has been the main measure of cotton cultivation in the southern cotton area. For example, Hunan Province Hybrid Cotton High-yield Cultivation Technical Specificat...

AI Technical Summary

Problems solved by technology

But there are also the following problems: it takes a long time for flowering and boll formation, so it takes a long time for mature bolls to be opened. The bolls are opened from the first and middle days of August, and they are still in the middle and late November or even December. The development of mechanized flower harvesting, and due to the great spatio-temporal changes in the formation of cotton bolls, a large number of reliance on autumn peaches to increase production and the increase in the proportion of peripheral bolls on cotton plants also lead to poor and inconsistent cotton fiber quality

At the same time, the long growing season of cotton requires a lot of labor in field management, especially the cost of pest and weed control increases; the further increase of cotton production is limited by the productivity of a single plant; the risk of being affected by natural disasters increases, etc.

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