Method for predicting plant growth state in cotton topping period based on unmanned aerial vehicle multispectral remote sensing

A technology for plant growth and prediction methods, applied in the field of smart agriculture, which can solve the problems of lack of interpretability and low efficiency of information collection

Pending Publication Date: 2022-03-08
NANJING AGRI MECHANIZATION INST MIN OF AGRI
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, at present, the determination of cotton topping period mainly relies on manual observation of crop growth status, which lacks interpretability and low information collection efficiency
Using drones to collect multispectral information on crop growth can quickly and efficiently obtain plant growth status, but there is currently a lack of multispectral information processing models for continuous monitoring of plant growth status

Method used

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  • Method for predicting plant growth state in cotton topping period based on unmanned aerial vehicle multispectral remote sensing
  • Method for predicting plant growth state in cotton topping period based on unmanned aerial vehicle multispectral remote sensing
  • Method for predicting plant growth state in cotton topping period based on unmanned aerial vehicle multispectral remote sensing

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Embodiment Construction

[0060] The present invention is further explained in connection with the examples, but the scope of the invention is not limited thereto:

[0061] 1 material and method

[0062] 1.1 Experimental regional overview and experimental materials

[0063] In the example, the experimental cotton variety is 68th in the new land. Data acquisition time is July 1, 2021, July 12, 2021, and continuously collecting the top 12 days of cotton crown multi-spectral remote sensing information, and the crop growth indicators affecting cotton topping time and strategy. The Trial Field has conducted topping operations on July 8. The data collection location is the location of Xinjiang Shihezi, the test field is 84 ° east. The north latitude is 43 °, the area is 6.75 mu, the stone river is a typical temperate continental climate, the average temperature is 25.1 ~ 26.1 ° C, the annual precipitation is 125.0 ~ 207.7mm, summer sunshine time. Cotton is an important economic crop of the stone river. The cotto...

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Abstract

The invention discloses a method for predicting a plant growth state in a cotton topping period based on unmanned aerial vehicle multispectral remote sensing. The method comprises the following steps: S1, collecting cotton canopy multispectral information before and after topping operation by using a multispectral camera; crop indexes related to the topping time strategy determination are collected; s2, constructing a multispectral regression analysis model of cotton canopy multispectral information-crop indexes; and S3, taking the multispectral information of the specific wave band combination collected by the cotton field to be predicted as input data, and obtaining crop indexes through the multispectral regression analysis model. By means of the method, the height of cotton plants, the number of flower buds and the number of fruit branches can be intelligently and rapidly obtained, and data support is provided for determining the cotton topping time.

Description

Technical field [0001] The present invention belongs to the field of smart agriculture, especially a prediction method of cotton-based plant growth state based on drone multi-spectral remote sensing. Background technique [0002] Cotton is an important economic crop in my country. Xinjiang is an important cotton production area in China. Xinjiang cotton production has high degree of mechanization, fast and accurate monitoring cotton growth state, cotton field precision management, and thus arrangement production plan to improve cotton production efficiency in Xinjiang cotton production, improve cotton Yield is of great significance. [0003] The cotton flower bud is one of the important growth period of cotton. Cotton top homework is an important job task in cotton flower buds. The scientific topping and fertilization help promotes the rational transformation of photosynthetic products, improves cotton production and quality. The requirements of "Northwest Inland Cotton Machinery...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/02G06K9/62A01G22/50
CPCG06Q10/04G06Q10/06393G06Q10/067G06Q50/02A01G22/50G06F18/2148G06F18/24323
Inventor 曹光乔李亦白陈聪
Owner NANJING AGRI MECHANIZATION INST MIN OF AGRI
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