Establishment method of potato leaf nitrogen detection model and detection method of potato leaf nitrogen
A technology for establishing method and leaf nitrogen, applied in the direction of color/spectral characteristic measurement, complex mathematical operation, etc., can solve the problems of complex calculation method and many parameters, and achieve the effect of simple detection method, accurate detection and high accuracy
Pending Publication Date: 2021-06-01
INNER MONGOLIA AGRICULTURAL UNIVERSITY
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The invention provides an establishment method of a potato leaf nitrogen detection model and a detection method of potato leaf nitrogen, and belongs to the technical field of potato nitrogen nutrition diagnosis. According to the method, a potato spectrum characteristic value with the maximum correlation with the potato leaf nitrogen cumulant is screened out through correlation analysis to serve as a sensitive spectrum characteristic value, regression analysis is conducted on the sensitive spectrum characteristic value and the leaf nitrogen cumulant, and the model with the maximum R2 is screened out to serve as the potato leaf nitrogen detection model, the method realizes accurate detection of the potato leaf nitrogen, can realize large-scale detection, and is simple in detection method and high in accuracy.
Description
technical field [0001] The invention relates to the technical field of potato nitrogen nutrition diagnosis, in particular to a method for establishing a nitrogen detection model of potato leaves and a method for detecting nitrogen in potato leaves. Background technique [0002] The nitrogen content in potato leaves is significantly related to potato yield. However, excessive nitrogen application will not only lead to overgreening and late maturity of potatoes, but also increase environmental risks such as air and water. Therefore, rational nitrogen application is very important in green agricultural production, and the diagnosis of nitrogen nutrition in leaves is a prerequisite for achieving the above goals. [0003] Traditional plant leaf nitrogen nutrition diagnosis methods are many, such as leaf color diagnosis method, laboratory chemical analysis method, SPAD instrument diagnosis method, etc., but these methods have disadvantages such as poor timeliness, large sampling v...
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CPCG01N21/25G06F17/18
Inventor 韩康于静樊明寿贾立国秦永林陈杨石晓华
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY