Estimating N status of winter wheat using a handheld spectrometer in the North China Plain

Fei Li, Martin L. Gnyp, Liangliang Jia, Yuxin Miao, Zihui Yu, Wolfgang Koppe, Georg Bareth, Xinping Chen, Fusuo Zhang

Field Crops Research · 2007 · 116 citations · 38 references

Concepts

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