Dai, X., Ouyang, Z., Li, Y., & Wang, H. (2013). Variation in Yield Gap Induced by Nitrogen, Phosphorus and Potassium Fertilizer in North China Plain. Public Library of Science.
Παραπομπή Chicago StyleDai, Xiaoqin, Zhu Ouyang, Yunsheng Li, και Huimin Wang. Variation in Yield Gap Induced By Nitrogen, Phosphorus and Potassium Fertilizer in North China Plain. Public Library of Science, 2013.
Παραπομπή MLADai, Xiaoqin, Zhu Ouyang, Yunsheng Li, και Huimin Wang. Variation in Yield Gap Induced By Nitrogen, Phosphorus and Potassium Fertilizer in North China Plain. Public Library of Science, 2013.
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