中文摘要：

为深入研究波涌灌施肥方式对地下水硝态氮运移的影响．通过肥液（硝酸钾溶液）室内入渗试验，模拟研究了地下水位埋深150cm条件下．施肥方式对肥液间歇入渗地下水水质的影响规律。结果表明：不同施肥方式地下水中硝态氮浓度具有相似的变化规律，不同施肥方式地下水硝态氮浓度随地下水深度的增加而增加；地下水硝态氮浓度随入渗时间的延长而增大；地下水硝态氮浓度的增加幅度随入渗时间的延长而减小，即入渗结束的增加量〉再分布1d的〉再分布5d的；地下水硝态氮浓度增加量与地下水深度之间呈负指数函数关系：不同施肥方式在入渗结束、再分布1d、再分布5d后的地下水中硝态氮浓度增量由大到小的顺序为：表施〉深施〉灌施〉不施肥。灌施时，地下水硝态氮的增加量比表施和深施小，说明灌施肥有利于提高氮肥利用效率，减轻氮肥对地下水的污染，生产中应提倡这一节肥施肥方式。

英文摘要：

To study the effects of fertilizer application on nitrate nitrogen transport in the groundwater, based on indoor experiments of fertile solution infiltration, the effects of fertilizer application on the influence of groundwater quality under the condition of 150 cm groundwater level depth were studied. The results showed that the nitrate nitrogen concentration in the underwater under different fertilizer application treatments had similar tendency, nitrate nitrogen concentration in the groundwater under intermittent infiltration with different fertilization applying manners increased with the underwater depth and infiltration time. The increase ration （the present of nitrate nitrogen concentration increased absolute value under different infiltration time to nitrate nitrogen increased gross under total infiltration time） of nitrate nitrogen concentration groundwater decreased with infiltration time, the increased ratio of nitrate nitrogen concentration was most after infiltration and least after redistribution for 5 days. The exponent function exists between the nitrate nitrogen concentration increment and groundwater depth under different fertilization applying manners.