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Effect of Topdressing Amount of Biogas Slurry on Soil Microorganisms and Enzyme Activities in Winter Wheat
Author(s): 
Pages: 721-726
Year: Issue:  4
Journal: Journal of Triticeae Crops

Abstract: 为给沼液的科学施用提供理论依据,在大田条件下用沼液作追肥,研究了不同沼液追施水平时冬小麦根际土壤微生物数量和酶活性的影响.结果表明,随着生育时期的推进,小麦根际土壤微生物数量及土壤脲醇和蛋白酶活性均呈"V"字形变化趋势,但不同指标处于谷值的时期存在差异.适宜沼液追施量能显著增加土壤微生物数量和提高土壤脲酶活性,且以120 kg·hm-2沼液追施量(均以沼液态纯氮计,下同)效果最好;蛋白酶活性以60...
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