河北省安国市药材田与粮作田土壤硝酸盐的累积特征
赵姣姣，刘文科，刘义飞
Characteristic of Soil Nitrate Accumulation on Herbal Field and Grain Field in Anguo City,Hebei Province
ZHAO Jiao jiao,LIU Wen ke,LIU Yi fei
中国农业气象
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2013, (03): 301
-305
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DOI: 10.3969/j.issn.1000-6362.2013.03.008