A study on the spatial difference of farmland nitrogen nutrient budget in the Bohai Rim region, China
GUO Liying, YANG Ren, WANG Daolong
Journal of Geographical Sciences ›› 2012, Vol. 22 ›› Issue (4) : 761-768.
A study on the spatial difference of farmland nitrogen nutrient budget in the Bohai Rim region, China
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