Prediction Model of Nitrogen Content in Walnut Leaves Based on Spectrum
MA Wenqiang, LIU Jia, SHEN Xiaohe, CHEN Zhongyuan, YANG Liling, ZHANG Man
Xinjiang Agricultural Sciences . 2023, (3): 582 -589 .  DOI: 10.6048/j.issn.1001-4330.2023.03.008