袁婉潼;

• 1:辽宁省阜新市实验中学

摘要(Abstract)：

[目的]从土壤微生物的角度,评估生物腐殖酸生态质量。[方法]设置CK(0)、低量(150 kg/hm2)、中量(450 kg/hm2)、高量(750kg/hm2)生物腐殖酸的盐碱土壤盆栽试验,测定盆栽黄瓜产量和盐碱度指标,同时测定土壤微生物数量和酶活性。[结果]中量腐殖酸处理盆栽黄瓜的结实量和全株生物量的增加幅度最大,与对照(CK)相比增幅达1.61倍和1.29倍,而高量腐殖酸处理盐碱土壤的p H和电导率的降低幅度最大。与对照相比,中量腐殖酸处理在0.05水平显著提高土壤细菌、真菌数量和蛋白酶、脲酶、磷酸酶和脱氢酶活性,同时在0.05水平显著提高土壤生物肥力指数(BIF)和酶活性指数(EAN)。高量腐殖酸处理对土壤微生物数量和酶活性的影响也在0.05水平显著高于对照,仅次于中量腐殖酸处理,而低量腐殖酸处理则与对照之间没有显著差异。[结论]中量和高量生物腐殖酸处理能够明显改善盐碱土壤质量,提高作物产量,其中中量生物腐殖酸的效果最好。

关键词(KeyWords)： 生物腐殖酸;盐碱土壤;微生物数量;酶活性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41301248)

作者(Author): 袁婉潼;

Email:

DOI:

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