Y-梯度广义最小二乘加权校正的土壤速效氮野外原位光谱预测
, KarnieliArnon Predicting Soil Available Nitrogen with Field Spectra Corrected by Y-Gradient General Least Square Weighting
QI Hai-jun1, 2 , Karnieli Arnon2 , LI Shao-wen1, *
, Karnieli Arnon 