Results showed that DMPP can reduce soil nitrate leaching significantly.
结果表明，DMPP能够显著减少土壤硝酸盐的淋失。
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。
Soil nitrate leaching not only causes the loss of fertilizer, but also brings about serious environmental problems.
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。
The concentration of nitrate-N increased continuously in soil surface, which resulted in nitrate leaching to groundwater after rewetting.
土表的硝态氮浓度不断增加，烤田增大了复水后硝态氮向地下水淋溶的趋势。
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。
Effects of applying different nitrogen fertilizer on yield, quality and nitrate leaching in soil layer were studied during the cucumber growth period in greenhouse.
不同施氮措施条件下，对保护地黄瓜生育期内氮素吸收利用效率、氮素淋洗损失进行了研究，同时也研究了不同处理对黄瓜产量及品质的影响。
The results suggested that both nitrogen addition and water and nitrogen addition promoted the ammonia volatilization, but had little effects on the nitrate leaching of the sandy grassland.
可见，氮添加和水氮添加均促进了土壤的氨挥发，对硝态氮的淋溶没有显著影响。
Advances in studies on accumulation and leaching of nitrate in farming soil.
农田土壤硝酸盐积累与淋失研究进展。
Applying more nitrogen would increase the content of soil microbial biomass nitrogen, but might result in large amount of nitrate residue in soil and suspected to leaching loss.
继续增加施氮量，土壤微生物量氮含量增加，但土壤中残留大量硝态氮，易淋溶损失。
Biological tests show that both fertilizers are helpful to improve lawn quality, reduce nitrate nitrogen leaching loss and raise fertilizers utilization rate.
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.
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。
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