Method, device and equipment for predicting nitrogen content of field tobacco leaves and storage medium

• Main Authors: DI TAO, LI HAOYUE, YOU DANDAN, XU XIANGQI, MEI YUTING, HUANG CHUANJIAN
• Format: Patent
• Language: Chinese; English
• Published: 25.06.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a field tobacco leaf nitrogen content prediction method, device and equipment and a storage medium, and relates to the technical field of tobacco production. The field tobacco leaf nitrogen content prediction method comprises the following steps: acquiring unmanned aerial vehicle hyperspectral images of tobacco leaves in each key stage of field growth and field sample tobacco leaf nitrogen content; after the hyperspectral image is preprocessed, average spectral reflectance is extracted for cells subjected to different nitrogen fertilizer gradient processing; screening out a target nitrogen sensitive wave band according to the average spectral reflectivity of the tobacco field by using a continuous projection algorithm; and based on the target nitrogen sensitive wave band and the sample tobacco leaf nitrogen content, constructing a quantitative relation model between the nitrogen sensitive wave band and the leaf nitrogen content. According to the method, the problems of many subjective