Method for measuring rape yield based on hyperspectral technology

A hyperspectral and technology prediction technology, applied in the direction of color/spectral characteristic measurement, measuring device, scattering characteristic measurement, etc., can solve time-consuming and labor-intensive problems, speed up the breeding process, reduce costs, and avoid inconsistent manual measurement standards Effect

Pending Publication Date: 2021-01-01
江西省农业科学院作物研究所
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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the time-consuming and labor-intensive defects of the traditional rapeseed yield measurement method in the prior art, thereby providing a method for measuring rapeseed yield based on hyperspectral technology

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  • Method for measuring rape yield based on hyperspectral technology
  • Method for measuring rape yield based on hyperspectral technology
  • Method for measuring rape yield based on hyperspectral technology

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Embodiment 1

[0032] This embodiment relates to a method for predicting the yield of rapeseed based on hyperspectral technology, which specifically includes the following steps:

[0033] 1. Sample Rapeseed Planting

[0034] Select breeding resources and plant in the test field according to conventional cultivation techniques: sow in early September to early October, fertilize in the field according to the principle of reapplying base fertilizer, increasing phosphorus and potassium fertilizer, and applying boron fertilizer, and applying 10-12kg of pure nitrogen per mu , phosphorus (P 2 o 5 )5-6kg, Potassium (K 2 O) 5-6kg, borax 1.0-1.5kg. Among them, 60% nitrogen fertilizer is applied at the bottom, seedling fertilizer and stalk fertilizer are 20% each; all phosphorus fertilizers are applied at the bottom; 70% of potassium fertilizer is applied at the bottom, and 30% is used as stalk fertilizer; apply. After the base fertilizer was applied to the field, a rape seeder (model: 2BYD-6, wit...

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Abstract

The invention relates to the field of rape planting, and especially relates to a method for measuring rape yield based on a hyperspectral technology. The method comprises the following steps: acquiring spectral characteristic parameter NHPi of sample rape in different growth periods, and measuring the yield of the sample rape; selecting the NHPi with the highest correlation with the sample rape yield, and establishing a rape yield prediction model; acquiring canopy hyperspectral image data of the rape in the growth period to be predicted, and calculating canopy spectral characteristic parameters of the rape to be predicted; and predicting the yield of therape to be predicted according to the rape yield prediction model and the canopy spectral characteristic parameters of the rape to be predicted. According to the method for measuring the rape yield based on the hyperspectral technology, the hyperspectrum has the characteristics of high resolution, a large number of contained wave bandsand rich spectral information, the rape yield is predicted through the hyperspectrum, and the rape yield is estimated simply, rapidly, efficiently and nondestructively, so the rape breeding cost is greatly reduced, and the rape breeding efficiency is improved, and the breeding process is accelerated.

Description

technical field [0001] The invention relates to the field of rapeseed planting, in particular to a method for measuring rapeseed yield based on hyperspectral technology. Background technique [0002] As one of the main sources of edible oil, rapeseed is planted in a large area all over the world. China is the world's largest rapeseed country, and its planting area and total output are close to a quarter of the world. However, at present, due to the lack of High-yield and high-quality varieties, coupled with extensive cultivation and management, make my country's vegetable oil self-sufficiency rate less than 40%. In order to alleviate the current shortage of edible oil supply in my country, it is very necessary to increase the output of rapeseed. [0003] Among them, the selection and breeding of excellent germplasm resources is an important means to promote high-yield cultivation of rapeseed, and in order to evaluate the quality of new varieties, yield is a key indicator. In...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25G01N21/47G06Q10/04G06Q50/02
CPCG01N21/25G01N21/4738G06Q10/04G06Q50/02G01N2021/4764
Inventor 熊洁陈伦林李书宇丁戈宋来强
Owner 江西省农业科学院作物研究所
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