Effect of long-term fertilization on enzyme activities and chemical properties of paddy soils
SHAO Xinghua, ZHANG Jianzhong, XIA Xueqing, YANG Xing
Ecology and Environment . 2012, (1): 74 -77 .  DOI: 10.16258/j.cnki.1674-5906(2012)01-0074-04

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