The nitrogen fertilizer losses in paddy field involve nitrification-denitrification, ammonia volatilization, nitrate leaching and runoff.
稻田中氮素损失途径主要有氨挥发、硝化-反硝化、淋洗和径流，其中氨挥发是氮素损失的主要途径。
It was significant to study the nitrogen and phosphorus losses from surface runoff in double cropping rice filed for guiding the rational fertilizer and protecting water environment.
研究双季稻田不同施肥量处理的氮磷降雨径流损失规律，对于指导双季稻合理施肥、保护水环境具有重要的现实意义。
Rainfall simulation experiment was performed to evaluate nitrogen losses from farmland and show the effect of fertilizer application on nitrogen concentration and losses of runoff.
在室内降雨模拟试验条件下，研究暴雨径流中农田氮素养分流失及施肥处理的影响。 结果表明，农田暴雨径流氮养分的流失量与累积径流量成正相关；
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