摘要
研究土壤氮素转化及微生物作用机制,对减少化肥施用、减少环境污染、保持农业可持续发展、影响氮素循环方面具有重要意义。本文系统介绍了土壤氮素形态、土壤氮素转化及微生物过程,包括生物固氮、固氮微生物、固氮量计算,氨化及氨化微生物,硝化-反硝化作用及其微生物过程机理研究,综述了土壤氮素转化的研究新进展,并针对宁夏农业现状提出了研究展望。
Studying the mechanism of soil nitrogen transformation and microbial action is of great significance for reducing fertilizer use, reducing environmental pollution, maintaining sustainable development of agriculture and influencing nitrogen cycling. In this paper, forms of soil nitrogen, soil nitrogen transformation and microbial process were introduced, including biological nitrogen fixation, nitrogen fixing bacteria and nitrogen fixation microorganism and the calculation methods, ammoniation ammonification and nitrification denitrification and microbial process, new advance in soil nitrogen transformation was summarized, and research prospect was put forward the according to the status of agriculture in Ningxia.
作者
李凤霞
王长军
LI Feng-xia(Institute of Agricultural Resources and Environment, Ningxia Academy of Agriculture and Forestry Sci-ences, Yinchuan, Ningxia 75000)
出处
《宁夏农林科技》
2018年第4期37-40,共4页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
国家自然科学基金项目(41661066
40961020)
宁夏农林科学院先导资金项目(NKYJ-16-03
NKYJ-18-18)资助
关键词
土壤氮素
硝化潜力
细菌多样性
土地利用
宁夏灌区
Soil nitrogen
Nitrification potential
Bacteria diversity
Land use
Ningxia irrigation district
