At present, nitrogen pollution in the groundwater caused by fertilizerirrigation in the agricultural area has become an environmental problem of interest to the people.
当今农业地区灌溉施肥引起氮素对地下水的污染已成为人们普遍关注的环境问题。
2
The results indicate that the nitrate-N leakage loss under the root zone caused by fertilizerirrigation could creat the pollution of shallow groundwater in Tangshan agricultural area.
计算结果表明，唐山农业区灌溉施肥引起根区以下硝态氮渗漏损失可造成浅层地下水的污染。
3
Fertilizerirrigation experiment showed that distributions of both fertilizer and water applied through sprinkler system can be represented by an approximate similar normal distribution function.