A chemical topping agent for cotton

Abstract

The invention belongs to the technical field of plant growth regulators for agricultural production, and discloses a novel chemical topping agent for cotton. The novel chemical topping agent comprisestwo active components, namely flumetralin and 6-benzylaminopurine in a weight ratio of (1:10)-(50: 1), with the total weight of the flumetralin and the 6-benzylaminopurine being 5%-80% of the weightof the composition, and the balance being auxiliaries or fillers. The topping agent can be used once before and after the full-bloom stage of cotton in an amount of 30-100 ml per mu by a locomotive oran unmanned aerial vehicle or manual spraying manner onto top cores of cotton, the topping agent can effectively replace manual topping, and compared with a flumetralin single agent needing to be used twice, the disclosed topping agent only need to be used for one time, the topping inhibition effect is more remarkable, the use cost is reduced by 70-80%, and more remarkable economic benefits and popularization value are achieved.

Description

technical field [0001] The invention belongs to the technical field of plant growth regulators for agricultural production, and specifically relates to a new medicament capable of controlling the height of cotton plants and inhibiting the growth of cotton top centers, thereby replacing manual topping and its application. Background technique [0002] The main function of cotton topping is to inhibit the growth of the main stem, avoid the occurrence of ineffective branches, break the dominance of the top, concentrate nutrients to the fruiting branches, and supply the fruiting organs, which is conducive to more bolls and increased boll weight. [0003] At present, the topping methods of cotton are mainly artificial and chemical topping, and some mechanical topping are also used. However, the phenomena of missed topping, over-topping, bell bumping, and damage in mechanical topping are relatively serious, and it is not conducive to the control of aphids; With fewer and more expe...

AI Technical Summary

Problems solved by technology

[0005] At present, the chemical topping agent for cotton is mainly a single agent of flubenzamine, which has been popularized and applied in some cotton areas in Xinjiang for 8-9 years. When used together with amines, due to the high requirements on the use technology and cotton management level, and the problems of unstable effect and high cost of medication, the user acceptance is not very high and needs to be improved.

[0006] 6-Benzylaminopurine (6-Benzylaminopurine) is a low-toxic plant cytokinin, which has the characteristics of inhibiting cell longitudinal division and breaking the apical dominance. It can promote the germination of side buds, so although a single dose of this agent can break the dominance of the top, it will also cause more redundant buds and ineffective side branches in cotton, which will still consume more nutrients, which is not conducive to the growth of buds and increase yield

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