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Effect of N fertilizer on the productivity and nutritive values of perennial grass mixtures in the alpine region of Qinghai-Tibetan Plateau, China 期刊论文
canadian journal of plant science, 2005, 卷号: 85, 期号: 2, 页码: 361-368
作者:  Dong, SK;  Yang, ZF;  Long, RJ;  Hu, ZZ;  Kang, MY
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