Advances in Hyperspectral Estimation of Nitrogen and Phosphorus Content in Crops
Crop nitrogen and phosphorus are important indicators to evaluate crop growth and yield,and accurate estimation of crop nitrogen and phosphorus content can accurately monitor crop nutrient content,which is of great significance for optimizing field management.The relevant research results at home and abroad are reviewed,the estimation methods of crop nitrogen and phosphorus spectra based on different scales(leaves and canopy)are introduced,and the estimation methods are systematically sorts out.Finally,on this basis,the problems faced by hyperspectral technology in crop nitrogen and phosphorus estimation and the next development trend are analyzed,aiming to provide references for the application of hyperspectral technology in agriculture.
NitrogenPhosphorusSpectral estimationQuantitative models of spectra
NETL
NSTL
万方数据
