Effects of Potash Fertilizer on Yields, Contents of Heavy Metal and Nitrate in Chinese Cabbage and Lettuce
WANG Xiao-jing1, WANG Zheng-yin1*, ZHAO Huan1, LIU Fang1, CHEN Yan-xia1, XIANG Hua-hui2, LI Rong2
中国蔬菜 . 2011, (10): 64 -68 . 

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