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- The loss of nitrogen in soil always was the emphases of studying nitrogen loss. 摘要长期以来，氮素损失的研究重点多为氮肥在土壤运转过程中的损失。
- It has been indicated that land exploitationhas affected the courses of nitrogen losses deeply from the data of rainfall simulation experiment in Xi Tiao Xi Catchment. 径流增加及积累径流量最大的是稻田,其它依次为桑园、竹林、草地和菜地;
- Field trials of rainfall simulation were carried out to study effects of different rainfall intensities and nitrogen fertilizer application rates on nitrogen losses in rice-wheat rotation of Taihu Lake Watershed. 摘要应用田间模拟降雨，研究了太湖流域稻麦轮作方式下，不同雨强和施氮水平对农田氮素径流流失的影响。
- DCD also could postpone the acme of NO3--N dynamics, which made soil preserve more NH4+-N in a longer period. Adding DCD could increase the utility efficiency of AB, and decrease its nitrogen losses. DCD同时能推迟NO3--N含量达到高峰,使土壤NH4+-N含量在较长时间保持相对较高水平,提高氮肥利用率,减少氮素流失。
- DCD also could postpone the acme of NO3--N dynamics, which made soil preserve more NH4+-N in a longer period.Adding DCD could increase the utility efficiency of AB, and decrease its nitrogen losses. DCD同时能推迟NO3--N含量达到高峰,使土壤NH4+-N含量在较长时间保持相对较高水平,提高氮肥利用率,减少氮素流失。
- By getting across of this inclined slope runoff experiment,we investigate in the control of soil nitrogen runoff effects on controlling nitrogen loss(urea). 本文通过斜面坡地径流实验,研究了控失氮肥(尿素)在控制土壤氮素径流损失上的作用效果。
- The runoff plot experiment and nitrification experiment was made to study nitrogen loss and sapplying capacity on slopping farmland in loess hilly region. 在黄土丘陵区坡耕地黄绵土上进行径流小区试验,研究侵蚀条件下土壤氮素流失规律,并采用硝化力培养方法研究黄绵土的供氮能力。
- Cao X T,Huang W Y,Chang Z Z et al.Mechanism of nitrogen loss and reduction in nitrogen loss during the compost of chicken manure[J].Jiangsu.Agr.Sci.,2004,20(2):106-110. [6]曹喜涛;黄为一;常志州;等.;鸡粪堆制过程中氮素损失及减少氮素损失的机理[J]
- Nitrogen losses in paddy fields in Shanghai suburbs 上海郊区稻田氮素流失研究
- nitrogen loss from volatilization 氮素挥发
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Even an oversight in the design might issue in heavy losses. 设计中那怕是一点点疏忽也可能造成重大的损失。
- Nitrogen losses from dry farming fields in Shanghai suburbs 上海郊区旱作农田氮素流失研究
- I commiserate with you on the loss of your mother. 你母亲逝世，我特向你慰问。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- Who will compensate for the losses? 谁将赔偿损失？
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- Some business losses can be set against taxes. 一些商业上的损失可从纳税额上得到补偿。
- They suffered huge losses in the financial crisis. 他们在经济危机时遭受了巨大的损失。
- Mr Smith was hard hit by his financial losses. 史密斯先生深受经济损失的打击。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
