Cotton-ripening ethrel additive and application thereof

Abstract

A cotton-ripening ethrel additive and an application thereof. The cotton-ripening ethrel additive is a mixture composed of following components: a 1-10% naphthenate, cetyl trimethyl ammonium bromide and monopotassium phosphate, wherein the 1-10% naphthenate accounts for 0.1-99.8% by mass, the cetyl trimethyl ammonium bromide accounts for 0.1-99.8% by mass and the balance of the monopotassium phosphate. The ethrel additive can be used for replacing thidiazuron and being mixed and compounded with ethrel totally or partially for solving a problem that the thidiazuron is required to be introduced from abroad and is high in cost. Meanwhile, the ethrel additive is good in disleaving and ripening effects on cotton, can satisfy a machine-harvested cotton technical requirement and can increase grade and yield of the cotton. Compared with the single-used ethrel, the ethrel additive, after being compounded with the ethrel, can increase a disleaving ratio by 10-20% and boll opening by 10-15%. Compared with a combination of the ethrel with the thidiazuron, the cost of disleaving and ripening of the cotton in a unit area is reduced by 30.0%. The ethrel additive is good in use effect and is low in cost.

Description

technical field [0001] The invention belongs to the technical field of plant growth regulators, and relates to a cotton growth regulator, in particular to a cotton ripening-promoting ethephon adjuvant and application thereof. Background technique [0002] Cotton is the main economic crop in my country, with an annual planting area of ​​about 4.5 million hectares, mainly distributed in the Yangtze River, the Huanghuai River Basin and the inland areas of Northwest China. The main harvested product of cotton is batt, the cotton fiber. Cotton batting is produced by the ripening and cracking of bolls from cotton. In order to harvest cotton mechanically or manually, or to reduce the damage of low temperature and frost before cotton matures, and reduce "post-frost flowers" (cotton with poor quality), it is necessary to spray cotton chemical maturation accelerators before cotton harvesting to promote cotton in a short period of time. Defoliation, boll opening, pretreatment for cot...

AI Technical Summary

Problems solved by technology

Although this ethephon·paraquat water agent reduces the cost, it does not have a very satisfactory effect on cotton defoliation, which reduces the cotton grade