Machine-harvested cotton topping-free cultivation method based on mepiquat chloride and water and fertilizer accurate operation

Abstract

The invention relates to the technical field of agriculture, in particular to a machine-harvested cotton topping-free cultivation method based on mepiquat chloride and water and fertilizer accurate operation. Based on efficient application of mepiquat chloride and accurate operation of water and fertilizer, the purpose of topping-free in the cultivation process of machine-harvested cotton is achieved, manual operation is not needed, and a special chemical capping agent does not need to be applied. The economic yield is equivalent to that of an existing manual topping cotton field and a chemical capping cotton field, and the cost is saved by 43-45 Yuan / mu. By means of the method, the effects of promoting cotton plant growth, reducing labor and labor intensity, improving topping efficiency,reducing topping cost and increasing yield are achieved, and the method can replace manual topping to achieve whole-process mechanization of cotton production.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a topping-free cultivation method for machine-harvested cotton based on the precise operation and planning of metrendamine and water and fertilizer. Background technique [0002] Cotton is an infinitely growing crop. Due to the limitation of heat conditions in cotton planting areas in my country, in order to ensure the maximum economic benefits of cotton in the limited growth period, it is usually necessary to pinch off the top of the cotton to eliminate the advantage of the top of the cotton, so as to promote the transfer of nutrients in the cotton plant to the cotton bolls. Higher economic yields can be obtained during the growing period. The northern part of Xinjiang belongs to the early-maturing cotton sub-region. The cotton growing season is short, labor shortage, cotton production risks are high, and the requirements for cultivation techniques are high, especially for...

AI Technical Summary

Problems solved by technology

The irrigation system in Xinjiang's cotton area is based on rotation irrigation. From the first time the cotton was fed with water and fertilizer, until the end of August when the water and fertilizer were cut off, the drip irrigation system has no downtime, and the spraying of chemical capping agents is generally concentrated in early and mid-July. In a relatively short period of time, the rotation irrigation system determines that only a small number of farmers' cotton fields can meet the requirement of no water and fertilizer before and after spraying without topping agents. Therefore, it is practically difficult to popularize this method on a large scale in Xinjiang cotton areas.

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