| 肖传绪,杜晓燕,莫海涛,张小勇.木质素作为包膜材料包裹尿素的缓释效果研究[J].干旱地区农业研究,2007,(6):167~170 |
| 木质素作为包膜材料包裹尿素的缓释效果研究 |
| Study on slow-release effects of urea coated with ligninused as coating material |
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| DOI：10.7606/j.issn.1000-7601.2007.06.33 |
| 中文关键词: 木质素 包裹尿素 盆栽实验 缓/控释肥料 |
| 英文关键词:lignin coated urea pot experiment slow/controlled release fertilizer |
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| 中文摘要: |
| 用盆栽实验的方法研究施用添加有脲酶抑制剂(nBPT)的木质素包裹尿素(nBPTLCU)对土壤的生化效应。与施用普通尿素相比,加有nBPTLCU的土壤尿素态氮和铵态氮含量较多,说明nBPTLCU可以减缓尿素的释放;在土壤深处的硝态氮含量和脲酶活性较低,说明硝化作用受到抑制;土壤微生物碳氮含量差异不显著,说明施用nBPTLCU对土壤微生物没有不良的影响。结果表明,nBPTLCU是一种具有较好缓释性能的肥料。 |
| 英文摘要: |
| The biochemical effects of soil after using coated urea with lignin(nBPTLCU) were studied through pot experiment.Results showed that the contents of CO(NH)2-N and NH4+-N in the soil were more than that of normal urea,which indicated nBPTLCU could slow down the release rate of urea,and that the content of NO3——N in the deep soil and urease activity were lower than that of normal urea,which indicated the nitrification was inhibited,and that the microbial biomass carbon and nitrogen were not significantly influenced by nBPTLCU,which indicated that nBPTLCU had no negative influence on soil biomass.All the results mentioned above proved that nBPTLCU will be of slow-release characteristic. |
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