PDF(1212 KB)
Corn Fertilizer Recommendation System Based on Abundance-deficiency Index of Soil N in Four Great Natural Regions and Whole China
Sun Hongren, Zhang Jiping, Gang Lihua, Lv Yucai, Wang Yinghai
PDF(1212 KB)
PDF(1212 KB)
Corn Fertilizer Recommendation System Based on Abundance-deficiency Index of Soil N in Four Great Natural Regions and Whole China
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