1) Use efficiency of fertilizer nitrogen
肥料氮利用率
2) Nitrogen use efficiency
氮肥利用率
1.
Effect of coated compound fertilizer on yield,nitrogen use efficiency and soil available nitrogen in summer maize;
包膜复合肥对夏玉米产量、氮肥利用率与土壤速效氮的影响
2.
A statistical model of nitrogen use efficiency for rice and wheat crops;
一个稻麦作物氮肥利用率的统计模型
3.
Effect of controlled-release nitrogen fertilizer on growth and fertilizer nitrogen use efficiency of double rice in southern China
控释氮肥对双季水稻生长及氮肥利用率的影响
3) N use efficiency
氮肥利用率
1.
Effect of N fertilizer and N use efficiency under different N levels of application in high-fertility paddy field.;
高肥力稻田不同施氮水平下的氮肥效应和几种氮肥利用率的研究
2.
The N use efficiency(NUE) and fate of N fertilizers applied to open field vegetables including green cabbage,Chinese cabbage and tomato were investigated by using field plot and microplot experiments.
采用田间小区和微区试验相结合,研究了小青菜、大白菜和番茄3种露地蔬菜的氮肥利用率及其氮素去向的差异。
3.
The main results are as follows:(1) Yield,water consumption and water use efficiency(WUE) were increased by the increment of N application rate,while N use efficiency(NUE) was decreased.
研究了华北平原夏玉米季施用不同类型氮肥对当季与后作冬小麦及周年产量与水、氮利用的影响,结果表明:(1)随施氮量增大,夏玉米产量、耗水量与水分利用效率(WUE)增大,氮肥利用率(NUE)降低。
4) fertilizer-N use efficiency
氮肥利用率
1.
The effect of applying N-fertilizer or not in wheat on soil fertility and grain yield and fertilizer-N use efficiency (FNUE) of rice in the wheat-rice cropping system were studied.
通过对前茬作物小麦设置施用氮肥与不施用氮肥处理研究它对土壤肥力及后茬作物水稻产量和氮肥利用率的影响。
5) Nitrogen utilization efficiency
氮肥利用率
1.
In order to increase crop production and maximize nitrogen utilization efficiency, field experiments were conducted to investigate the effect of urea and delayed release coated urea under different conditions (with different dose and applied methods) on the growth and nitrogen uptake of transplanted rice.
结果表明,延迟释放型包衣尿素在比普通尿素施氮量(N150kg/hm2)减少30%(N105kg/hm2)和50%(N75kg/hm2)时,对水稻生长不会产生任何不良影响;由于包衣尿素在田间的养分释放动态与水稻对氮素的吸收规律吻合,施用包衣尿素的水稻产量、吸氮量和氮肥利用率均显著高于普通尿素处理,其中水稻产量增加12 7%～14 4%,吸氮量增加27 5%～32 7%;普通尿素和氮肥用量减少30%和50%的包衣尿素3个处理的氮肥利用率分别为19 9%、58 8%和89 9%。
2.
In Tai Lake Watershed of south Jiangsu province the studies on rice yield, nitrogen utilization efficiency, nitrogen leaching amount at different nitrogen fertilizer doze in paddy rice field were made.
在苏南太湖流域，对不同氮肥施用水平下水稻的产量、氮肥利用率及氮肥水环境损失进行了研究。
3.
Based on the long-term field experiments,the relationships between soil nitrogen balance,nitrogen utilization efficiency(NUE) and soil nitrate were studied.
利用长期肥料试验资料研究了土壤氮素平衡、氮肥利用率和土壤硝态氮之间的相互关系。
6) nitrogen recovery
氮肥利用率
1.
Effects of organic-inorganic slow release fertilizers on yield and nitrogen recovery in tomato;
有机-无机缓释肥对番茄产量和氮肥利用率的影响
2.
The effects of N application rate on the characters of uptake nitrogen and nitrogen recovery of different rice varieties was studied under field conditions.
在大田条件下,研究了施氮量对不同类型水稻品种吸氮特性及氮肥利用率的影响。
补充资料：肥料利用率
分子式：
CAS号：
性质：施用的肥料中养分被当季作物吸收的百分数。肥料利用率与肥料品种及施用方法、土壤、作物、灌溉、气候等因素有关。如氮肥施用后在土壤中由于挥发、淋失和反硝化作用等引起的损失，磷肥在土壤中有被固定等的损失，所以肥料利用率都远远低于100%。15N示踪法测定几种氮肥在不同土壤和不同作物的平均利用率分别为：碳酸氢铵26.34%，硫酸铵44.09%，尿素39.09%，硝酸铵18.06%，液氨48.27%，氨水18.54%。提高肥料利用率对降低农业生产成本、合理施肥、节约资源和能源，保护环境等都有重要意义。
CAS号：
性质：施用的肥料中养分被当季作物吸收的百分数。肥料利用率与肥料品种及施用方法、土壤、作物、灌溉、气候等因素有关。如氮肥施用后在土壤中由于挥发、淋失和反硝化作用等引起的损失，磷肥在土壤中有被固定等的损失，所以肥料利用率都远远低于100%。15N示踪法测定几种氮肥在不同土壤和不同作物的平均利用率分别为：碳酸氢铵26.34%，硫酸铵44.09%，尿素39.09%，硝酸铵18.06%，液氨48.27%，氨水18.54%。提高肥料利用率对降低农业生产成本、合理施肥、节约资源和能源，保护环境等都有重要意义。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条