黄土丘陵区不同撂荒年限自然恢复的退化草地土壤养分及酶活性特征
张成娥, 陈小利
Characteristics of Soil Enzymatic Activity and Nutrient of Pasture from Abandoned Field in Different Years on the Loess Hilly Areas
Zhang Cheng-e, Chen Xiaoli
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1997, (3): 195
-200
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DOI: 10.11733/j.issn.1007-0435.1997.03.009