The results indicate that the nitrate-N leakage loss under the root zone caused by fertilizer irrigation 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。
The characteristics of nitrogen(N) and phosphorus(P) loss under 5 land use patterns were studied in Sunjia small red soil watershed during the Course of rain.
研究了次降雨过程中红壤小流域5种不同土地利用方式土壤N，P养分流失特征。
The more developed the wheat roots were, the less leachate could be collected, thus, less loss of N fertilizer was observed.
小麦根系越发达，收集到的淋溶液越少，损失的肥料N越少。
Some music can lull you into concentration loss, or even mini-sleep [n], which can cause horrific accidents.
有一些音乐会使你无法集中注意力，甚至陷入轻度睡眠状态，那样就会造成可怕的惨祸。
The direct blending of urea and coated PK granules prohibits the problems in the production of compound fertilizer based on urea-SSP, with lower N loss, easier sale and more economy.
采用尿素与包裹后的磷钾粒肥直接掺混，避免和解决了尿素-过磷酸钙系复混肥生产中存在的一系列问题，减少了氮素的损失，提高了产品的市场销售属性，增大了企业经济效益。
The effects of a new fertilization method-NDSA(nitrogen depot with saturated ammonium) on the loss of nitrogen from ammonia volatilization and N leaching were studied by imitation experiments.
采用室内模拟氨挥发和模拟降雨土柱淋洗方法，研究了NDSA（饱和铵贮库）施肥法对降低氨挥发和氮素淋失的作用。
Thesequence of leaching loss from forest floor was K>organic C>total N>total P.
枯枝落叶层的养分淋失量以全K最大，其次为有机质、全N、全P。
The inhibitive action of isopropyl amine, n-butyl amine and n-octyl amine on aluminium corrosion in hydrochloric acid solutions was studied using mass loss technique.
采用失重法研究了异丙胺、正丁胺、正辛胺在盐酸介质中对铝的缓蚀性能，发现正辛胺是一种较好的缓蚀剂。
Loss of N was less and energy consumed was saved during the micro-aerobic composting compared with the aerobic composting.
同时与好氧工艺相比，微好氧工艺可以减少氮素损失，节省能源。
The results showed as follows:The true amino acid digestibilities of the 9 feeds with endogenous amino acid loss measured with N-free diet methods were higher than those with starvation method.
试验结果表明：无氮日粮法测定的去盲肠鸭九种饲料氨基酸真消化率的平均值显著高于绝食法。
The results showed as follows:The true amino acid digestibilities of the 9 feeds with endogenous amino acid loss measured with N-free diet methods were higher than those with starvation method.
试验结果表明：无氮日粮法测定的去盲肠鸭九种饲料氨基酸真消化率的平均值显著高于绝食法。
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