Wheat stripe rust monitoring method based on spectral information and meteorological data

Abstract

The invention provides a wheat stripe rust monitoring method based on the spectral information and meteorological data. The method comprises steps of a time phase remote sensing image of a to-be-monitored area being acquired; obtaining an image of the wheat planting area from the time-phase remote sensing image; obtaining a first vegetation spectral index of the wheat planting area in a first preset time and a second vegetation spectral index of the wheat planting area in a second preset time, and performing normalization calculation on the first vegetation spectral index and the second vegetation spectral index of the wheat planting area to obtain a normalized vegetation spectral index change value of the wheat planting area; obtaining meteorological information data of the wheat plantingarea in a preset time period; and inputting the normalized vegetation spectral index change value and the meteorological information data of the wheat planting area into a constructed wheat stripe rust remote sensing monitoring model to obtain a wheat disease index of the wheat planting area, thereby judging a wheat stripe rust monitoring result of the wheat planting area. According to the method, the infection condition of the wheat stripe rust in each wheat area can be judged in a large range.

Description

technical field [0001] The invention relates to the technical field of wheat monitoring, in particular to a method for monitoring wheat stripe rust based on spectral information and meteorological data. Background technique [0002] There are many kinds of diseases in the process of wheat growth, and one of the most explosive and harmful diseases is wheat stripe rust, which is one of the most important diseases of wheat in my country and the main control object. However, suitable environmental conditions for the prevalence of the disease are the incentives for the disease, leading to large-scale epidemics and disasters, and endangering the growth and yield of wheat. At present, the monitoring technology for wheat stripe rust is still very scarce, and it is impossible to obtain the infection situation of wheat stripe rust in each wheat area well. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings and deficiencies in the ...

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Problems solved by technology

However, suitable environmental conditions for the prevalence of diseases are the incentives for the disease, leading to large-scale epidemics and disasters, and endangering the growth and yiel

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