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Chinese Journal of Applied Ecology
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Effect of longterm application of NPK fertilizer on maize yield and yellow soil nutrients sustainability in Guizhou, China.
LIU Yan-ling1,2, LI Yu1,2, ZHANG Ya-rong1,2, HUANG Xing-cheng1,2, ZHANG Wen-an1,2, JIANG Tai-ming2,3*#br#
1Institute of Soil and Fertilizer, Guizhou Acade-my of Agricultural Sciences, Guiyang 550006, China; 2Scientific Observing and Experimental Station of Arable Land Conservation and Agriculture Environment(Guizhou), Ministry of Agriculture, Gui-yang 550006, China; 3Guizhou Academy of Agricultural Sciences, Guiyang 550006, China).

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