Acta Agriculturae Boreali-Sinica
A Study on Soil Nutrient with Notillage in Arid CornfieldⅠ Soil Organic Matter,Enzyme and Nitrogen
Ji Zengshun, Zhang Shumei， Xue Zongrang， Yan Xuanmei， Fan Lanying， Zhang Zhiqin， Luo Xitu，Wu Jinfang, Zhang Xiangjun
ACTA AGRICULTURAE BOREALI-SINICA . 1998, (2): 42 -47 .  DOI: 10.3321/j.issn:1000-7091.1998.02.008

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