铵的矿物固定和吸附是土壤氮素循环中的重要环节。
The fixation and adsorption of ammonium are important parts of nitrogen recycle in soils.
在全球气候变化的背景下，对于森林土壤中氮素循环的研究更加迫切和重要。
In the context of global climate change, the study on nitrogen cycles in forest soil becomes more urgent and important.
正是因为生物固氮在自然界氮素循环中的重要地位以及它在应用上的潜力，促使各国对生物固氮进行了大量的研究。
Many countries are doing a great deal of research work on that not only because of the important role in the nitrogen circulation among nature but also the potential application value.
动力学模型需要大量的田间实测资料，主要应用于农田氮素循环、定量评价水氮资源利用率、优化水肥管理措施等方面。
The DPM method needs lot of field data, mainly to study nitrogen cycle in field, assess water and nitrogen usage efficiency and optimize management soil water and nitrogen fertilizer.
森林土壤氮素转化与循环在森林生态系统功能中占有极其重要的意义。
Nitrogen transformation and cycling in forest soils are of signification importance to the function of forest ecosystems.
这可以从有机物质、氮素的循环和土壤肥力因素的改善得到证明。
This could be confirmed by the organic matter and nitrogen circulation and the improvement of soil fertility.
通过野外控制试验和室内培养试验研究了氮素输入对淡水沼泽湿地碳循环过程的影响。
Field control experiment and laboratory culture experiment were conducted to study the influence of nitrogen input on the freshwater mire carbon stock.
综述了落叶果树氮对产量与品质的影响、氮循环、氮诊断与精准施氮等氮素营养研究的几个方面。
The functioning mechanism, absorption, transference, distribution, effective period and perennial effect , as well as application of paclobutrazol in deciduous fruit trees were summarized.
综述了落叶果树氮对产量与品质的影响、氮循环、氮诊断与精准施氮等氮素营养研究的几个方面。
The functioning mechanism, absorption, transference, distribution, effective period and perennial effect , as well as application of paclobutrazol in deciduous fruit trees were summarized.
应用推荐