1) Nitrogen fertilizer
氮肥
1.
Influence of herbicides on denitrification loss of nitrogen fertilizer and emission of N_2O.;
除草剂对氮肥反硝化损失与N_2O排放的影响
2.
Study on the residual effect of nitrogen fertilizer in spring wheat cultivation in semiarid areas;
半干旱地区春小麦氮肥后效的研究
3.
Effects of combined application of organic and inorganic nitrogen fertilizer on the soil nitrogn leaching and the growth of leaf-used lettuce;
有机无机氮肥配施对土壤氮淋失及油麦菜生长的影响
2) Nitrogen
[英]['naɪtrədʒən] [美]['naɪtrədʒən]
氮肥
1.
Study on the Effects of Nitrogen Application and Planting Density on the Yield of Jingdan 28;
不同氮肥和密度水平对京单28产量效应的研究
2.
Effects of interaction of photoperiod and nitrogen on activities of enzymes of carbon and nitrogen metabolism of Huanong No.1 ensilage corn;
光周期与氮肥互作对华农1号青饲玉米碳氮代谢相关酶的影响
3.
The Effect of Nitrogen on Nitrate Leaching and Absorption under Spring Corn in Dry Arears of North China;
北方旱作条件下玉米施用氮肥对氮吸收和淋溶的影响
3) nitrogenous fertilizer
氮肥
1.
Global scope assessment of China's nitrogenous fertilizer industry;
对我国氮肥工业的全方位评价
2.
Interactive effects of super absorbent polymer and nitrogenous fertilizer;
土壤保水剂与氮肥的互作效应研究
3.
Competitive Strategic Analysis on China Nitrogenous Fertilizer Industry;
中国氮肥行业市场竞争战略分析
4) N fertilizer
氮肥
1.
The border effect and utilization rate of N fertilizer as base under wheat intercropped with spinach;
小麦间作菠菜的边际效应与基施氮肥利用率
2.
Four treatments were designed as the control (without urea incorporation); low N fertilizer level(0.
鉴于氮肥施用对农田CH4排放的影响还有很大不确定性,室外盆栽试验于2 0 0 2年在南京农业大学实施。
3.
In this paper,the concept related to ~(15)N application were introduced and interpreted,and the studies on N fertilizer research,N cycling and agricultural environment protection since 1980 were reviewed in detail.
本文介绍了15N的相关概念,列举了20世纪80年代以来15N在氮肥研究、氮素转化研究以及农业环境保护中的应用进展,阐明了应用15N的新技术已解决的问题,以及将要解决的问题,并展望了性核素示踪技术的应用前景。
5) N-fertilizer
氮肥
1.
Effect of N-fertilizer Levels on Physiobiochemistry in the Middle and Late Growth Stage of Super Hybrid Rice Ⅱ Youhang 1;
氮肥水平对超级稻Ⅱ优航1号生长中后期生理生化特性的影响
2.
Effect of Application Level of N-fertilizer on Nutritional Values of Corn Stalks;
氮肥追施量对玉米秸秆营养价值的影响
3.
Effect of N-fertilizer Application Patterns on Yield and N-fertilizer Efficiency of Corn;
氮肥施用方式对玉米产量和肥效的影响
6) nitrogen fertilizer
氮肥肥料 NF
补充资料：氮肥
| 氮肥 nitrogen fertilizer 具有氮（ N）标明量的单元肥料。施于土壤或植物可提高植物的氮营养水平。按氮的化学形态可分为三大类：①铵态氮肥 ，氮以  形态存在。主要有氨水 、液氨、碳酸氢铵、硫铵、氯化铵等。②硝态氮肥，氮以 形态存在。主要有智利硝石（硝酸钠）、硝酸钙；同时含有 和  的氮肥有硝酸铵、硫硝酸铵、硝酸铵钙等。③酰胺态氮肥，氮以酰胺基形态存在。主要有尿素等。中国常用的氮肥有尿素、氨水、碳酸氢铵、硝酸铵、硫铵、氯化铵和含氮复合肥料。氮肥施入土壤后，其中的氮素被当季植物吸收，一部分通过微生物的同化和粘粒矿物的固定等作用而残留在土壤中；还有一部分则通过各种途径，如氨的挥发、反硝化作用、淋洗作用和径流等离开土壤 -植物系统而损失掉 。土壤氮素含量、形态及其转化和供氮能力与氮肥肥效关系极大。土壤中氮分为无机态和有机态 2类 。无机态氮中，粘土矿物固定态的铵约占土壤全氮量的 2％ ～ 3％，能被植物直接吸收利用，称有效态氮。有机态氮约占土壤表土全氮量的 90％或更高，经微生物分解转化为铵态氮和硝态氮后，易为作物吸收。 |
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