稳定性肥料中硝化抑制剂作用效果的检测方法

发布时间：2018-02-21 20:58

  本文关键词： 检测方法 硝化抑制剂 硝化抑制率 稳定性肥料　出处：《中国土壤与肥料》2017年02期 　论文类型：期刊论文

【摘要】：以硝化抑制率作为评价指标,研究了影响硝化抑制剂抑制效果测定方法的主要因素,包括氮土比、培养时间以及土壤类型等。确立了测定稳定性肥料中硝化抑制剂抑制作用效果的最佳检测方法:称取风干后的棕壤200 g,以氮土比1.15∶1 000准确称取样肥,并将其充分混匀,以25%的含水量,在30℃培养箱中培养。选择自培养开始的第9、12、15 d测定土壤中硝态氮(包括亚硝态氮)的质量分数。该检测方法提高了评价效率和准确度。
[Abstract]:The main factors affecting the determination of the inhibition effect of nitrification inhibitors, including the ratio of nitrogen to soil, were studied with the nitrification inhibition rate as the evaluation index. Culture time and soil type. The best method for determining the inhibition effect of nitrification inhibitor in stable fertilizer was established: weighing 200 g of brown soil after air drying, accurately weighing the sample fertilizer with nitrogen / soil ratio of 1.15: 1 000, and mixing it fully. The water content of 25% was cultured in a incubator at 30 鈩，

本文编号：1522853