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1)  nitrogen leach loss
氮淋溶量
2)  nitrogen leaching
氮素淋溶
1.
Using a multi-layer soil column device,the effect of new nitrification inhibitor DMPP(3,4-dimethyl pyrazole phosphate) on nitrogen leaching was studied for understanding the nitrogen vertical transformation and lowering the nitrogen leaching losses.
采用自制模拟原状土柱装置,进行新型硝化抑制剂3,4-二甲基吡唑磷酸盐(3,4-dimethyl pyrazole phosphate,DMPP)对氮素淋溶效应试验,探讨其对氮素垂直迁移转化及降低淋溶损失的影响。
2.
There were fewer researches on nitrogen leaching in paddy rice field.
稻田土壤氮素淋溶研究较少,报道稻田氮素淋溶导致地下水NO3--N污染超标的例子更少。
3.
According to soil profile of nitrate nitrogen,ammonium nitrogen,organic matter and total nitrogen under different land uses patterns,effects of soil nitrogen leaching under different land uses in the loess hilly and gully region were discussed in detail,and proposals were gaven for local agricultural development.
通过对黄土高原丘陵沟壑区不同土地利用模式土壤剖面NO-3-N、NH+4-N、有机质和全氮分布的测定,论述黄土高原丘陵沟壑区不同土地利用模式对土壤氮素淋溶的影响,对当地农业发展提出建议。
3)  N leaching
氮淋溶
1.
Static absorption and soil column leaching methods were used to study ammonia volatilization and N leaching characteristics from six controlled/slowrelease fertilizers.
采用“静态吸收法”和“土柱淋溶法”室内模拟实验,分别研究了6种控/缓释肥料施入土壤中的氨挥发和氮淋溶情况。
4)  nitrate leaching
硝态氮淋溶
1.
Research advances on fertilizer application and nitrate leaching of turf;
草坪施肥与硝态氮淋溶问题研究进展
5)  soil nitrogen leaching
土壤氮淋溶
6)  inorganic nitrogen eluviate
无机氮淋溶
补充资料:化学淋溶
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性质:天然降水在下渗到地表风化壳或土壤的过程中,其所含的化学物质(主要有氧、二氧化碳、硝酸盐、硫酸盐和氯化物等)所发生的氧化、溶解和下渗的作用。易溶性盐类(如硝酸盐、氯化物)经淋溶会大量进入水中,下渗到土壤深层;难溶性盐(如钙、镁的碳酸盐)较难进入水中,且下渗距离小。研究化学淋溶作用,可了解化学物质在土壤、风化垂直方向上的迁移规律,如酸雨中含硫化合物对土壤污染的问题等。

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