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;
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.
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