农田土壤硝酸盐积累与淋失研究进展。
Advances in studies on accumulation and leaching of nitrate in farming soil.
氮沉降能引起土壤酸化，同时造成土壤盐基离子淋失。
N deposition can acidify the soil and leaching the exchangeable base cations.
结果表明，DMPP能够显著减少土壤硝酸盐的淋失。
Results showed that DMPP can reduce soil nitrate leaching significantly.
钙的转入量看来不足以补偿从表土中活化和淋失的钙。
It would appear that the inputs are insufficient to offset the mobilization and leaching of calcium from the topsoil.
供水量和氮肥施用量是影响农田硝态氮淋失的主要因素。
The water and nitrogen applications are the two main factors that affect the nitrate leaching on farmland.
供水量和氮肥施用量是影响农田硝态氮淋失的主要因素。
A simulative analysis of influence of precipitation on water leakage and nitrogen leaching in irregated farmland;
不同深度的土壤有着不同的贮水量，因而也有着不同的淋失量。
Different depth of soil had different water storage, and therefore, had different leached amounts.
高效用水可以节省能源，并有助于，防止土壤侵蚀和硝酸盐的淋失。
High efficiency of water application may result in energy savings and help avoid erosion and leaching nitrates from the soil.
施用有机肥可以在很大程度上减少农田氮素的径流流失和渗漏淋失。
Organic fertilizers application could markedly decrease runoff loss and leaching loss of nitrogen in rice field.
土壤硝态氮的淋失不但造成肥料的损失，而且产生严重的环境问题。
Soil nitrate leaching not only causes the loss of fertilizer, but also brings about serious environmental problems.
剖面中各元素的这种分布和集散规律也与元素的富集系数和淋失系数波动一致。
The regulation of distribution, gathering and migration of each element in the section are corresponded with the fluctuations of its gathering and leach coefficient.
控释尿素山于具有控制氮素释放的功能，其淋失过程主要发生在养分释放的高峰期。
CRU has the function of controlling nutrient release , so the leaching loss of CRU mainly took place at nutrient releasing peak period.
生物试验表明：两种肥料有利于草坪质量的提高，减少土壤中硝态氮的淋失，提高肥料的利用率。
Biological tests show that both fertilizers are helpful to improve lawn quality, reduce nitrate nitrogen leaching loss and raise fertilizers utilization rate.
利用原状回填土渗漏池研究了油菜生长季节氮素在紫色土中的移动特点和淋洗损失以及影响氮素移动和淋失的因素。
We studied transference properties and leaching loss of nitrogen in purple soils during the growth period of wheat with percolation pond. Also the factors affecting them are researched.
采用室内模拟氨挥发和模拟降雨土柱淋洗方法，研究了NDSA（饱和铵贮库）施肥法对降低氨挥发和氮素淋失的作用。
The effects of a new fertilization method-NDSA(nitrogen depot with saturated ammonium) on the loss of nitrogen from ammonia volatilization and N leaching were studied by imitation experiments.
供试的23个土壤，除了采自湖北潜江的20号水稻土存在比较大的磷素淋失风险，其余土壤发生磷素淋失的风险很小。
Accordingly, the tested 23 soils, except the paddy rice soil No. 20 from Qianjiang Hubei Province, had low risk of P leaching occurrence.
风化前锋是一个重要的地球化学作用场所，在这一狭窄的界面上，伴随碳酸盐矿物的快速淋失，残余酸不溶物开始了明显分解。
The weathering front is a main place of geochemical reaction, and at this limited-thick interface, with quick dissolution of carbonates, acid-insoluble residues begin to obviously decompose.
风化前锋是一个重要的地球化学作用场所，在这一狭窄的界面上，伴随碳酸盐矿物的快速淋失，残余酸不溶物开始了明显分解。
The weathering front is a main place of geochemical reaction, and at this limited-thick interface, with quick dissolution of carbonates, acid-insoluble residues begin to obviously decompose.
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