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作 者 ：周博 高佳佳 周建斌

期 刊 ：植物营养与肥料学报 2012年 18卷 2期 页码：366-373

关键词：有机肥；氮素；碳素；矿化特性；

Keywords:organic manure, carbon, nitrogen, mineralization characteristic,

摘 要 ：本文采用室内培养法研究了陕西关中地区日光温室栽培生产中9个不同有机肥的碳、氮矿化特性。结果表明：不同有机肥碳、氮的矿化量和矿化率（矿化量占总有机碳或氮的比例）的动态变化存在明显差异，其中碳矿化率在22.24%～87.16%之间，变异系数达90.30 %；氮矿化率在29.07%～84.87%之间，变异系数达67.37 %；不同类型有机肥相比，鸡粪平均的碳、氮矿化累积量及矿化率显著高于猪粪和牛粪；猪粪与牛粪平均的碳、氮矿化累积量及矿化率无显著差异。同一种类有机肥，培养期间其碳、氮矿化累积量及矿化率也存在明显差异。供试有机肥碳、氮的矿化量与有机肥全氮含量均呈线性关系，表明有机肥氮含量是影响矿化量的主导因子。

Abstract:The incubation experiment was used to study carbon (C) and nitrogen (N) mineralization characteristics of 9 organic manures sampled from the bases of sunlight greenhouses in Guanzhong district, Shaanxi Province. The results show that there are significant differences in the C and N mineralization and their mineralization rates (the ratio of C or N mineralization to total organic C or total organic N) among the different manures. The range of C mineralization rates of different manures is from 22.24% to 87.16%, with CV (coefficient of variation) of 90.30%, and the range of N mineralization rates of different manures is from 29.07% to 84.87%, with CV of 67.36%. The mean amounts of C and N mineralization, and mineralization rates of chicken manure are significantly higher than those of pig and cattle manures, and there is no difference between pig and cattle manures. For a same type of organic manure, there are also significant differences in the C and N mineralization and mineralization rates among the manures collected from different places. The amounts of C and N mineralization of organic manure are linearly related with their total N contents, indicating that the N content of organic manure is the key factor affecting the mineralization of C and N from manures.

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