Method and system for using cotton defoliating agent based on remote sensing image data and medium

Abstract

The invention discloses a cotton defoliating agent using method and system based on remote sensing image data and a medium, and the method comprises the steps: selecting a research area range, and obtaining data of a plurality of first grid images of the research area range at different times in a cotton boll opening period; calculating a normalized vegetation index of the data of each first raster image; a reference index is obtained, and the reference index is the maximum normalized vegetation index obtained through calculation according to multiple pieces of second grid image data obtained at different time in the research area range in the flowering and boll-setting period of the cotton; and calculating a wave band difference value between the normalized vegetation index and the reference index of each piece of first grid image data, and formulating a cotton defoliating agent use scheme for different areas in the research area range according to the wave band difference value. The defoliating effect of cotton in the boll opening period is monitored through satellite data, the use amount of a defoliating agent is increased for places with low defoliating degree, the spraying cost is reduced, the defoliating effect of cotton is better, and therefore the efficiency of mechanical cotton picking is improved.

Description

technical field [0001] The invention relates to the technical field of using cotton medicaments, in particular to a method, system and medium for using cotton defoliants based on remote sensing image data. Background technique [0002] my country is the largest producer of cotton in the world, and Xinjiang is the largest cotton planting base in the country, so it is of great significance to increase cotton production in Xinjiang. In the related technology, it is usually to manually observe the cotton leaf shedding in each area of ​​the cotton field, and then decide how to use the cotton defoliant according to the technicians' years of work experience, which is highly subjective and has low accuracy, and often requires a lot of manual participation. In the process of using cotton defoliants, the process is cumbersome and the efficiency is very low. When spraying cotton defoliants, excessive spraying often occurs, causing environmental pollution, high spraying costs and low ut...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, propose a method, system and medium for using cotton defoliant based on remote sensing image data, and solve the problem of excessive spraying of cotton defoliant in the prior art, which causes environmental pollution , The problem of high spraying cost and low utilization rate

Images