Method suitable for chemical maturation acceleration and defoliation of machine-harvested cotton in desert arid area

Abstract

The invention discloses a method suitable for chemical maturation acceleration and defoliation of machine-harvested cotton in a desert arid area. The method sequentially comprises the steps: selectingand preparing soil; applying a base fertilizer; treating seeds; carrying out sowing and paving a drip irrigation pipeline; carrying out field management; and carrying out timely chemically-controlledmaturation acceleration and defoliation. According to the chemical maturation acceleration and defoliation method adopted by the invention, adopted agents, a proportioning scheme, a pesticide application dosage, an application period and an application frequency are provided; determined by experiments in a cotton field, compared with a conventional cotton planting method, the time chemically-controlled maturation acceleration and defoliation method disclosed by the invention has the advantages that the growth period of a cotton boll is effectively prolonged, the central boll opening of the cotton boll is realized, the boll opening period of the cotton boll is shortened, a cotton plant is enabled to defoliate before being harvested by using a machine so that it is convenient to realize machine harvest, the quality and yield of commodity cotton are increased, the manpower investment is greatly reduced, the operation cost is reduced, and the economic benefit of cotton production is increased. In addition, the defoliated cotton plants can be used as feeds, so that the utilization rate of crop straws is increased.

Description

technical field [0001] The invention relates to a crop cultivation method, in particular to a chemical ripening and defoliation method suitable for machine-picked cotton in desert arid regions, and belongs to the technical field of plant cultivation. Background technique [0002] Cotton is the main economic crop and raw material for light textile industry in my country. In recent years, with the unremitting efforts of relevant scientific research workers, a whole set of planting techniques and methods for planting cotton in the arid saline-alkali land in the north have been explored. And gradually become the pillar industry of local rural economic development and the main source of farmers' wealth. The rapid development of the cotton industry has optimized the rural industrial structure, extended the industrial chain, promoted the development of the regional economy, increased farmers' income, and accelerated the pace of getting rid of poverty and becoming rich. Therefore,...

AI Technical Summary

Problems solved by technology

The frost-free period in the cotton area is short, with drought and little rain. The low temperature in the early stage will cause low temperature freezing damage, and the temperature will drop rapidly in the later period, which will make the cotton bolls unable to mature normally. Especially in early spring, low temperature and cold rain and sandstorms will seriously affect the whole seedlings and growth of cotton bolls.

In the process of promoting the mechanization of cotton harvesting, the following problems are encountered: First, the growth period of cotton bolls is relatively short

Second, the flowering cycle of cotton bolls is long, and the bolls are not concentrated

These problems lead to the decline of cotton quality, yield and economic benefits, and restrict the industrialization of cotton planting in arid desert areas.

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