1) Nitrogen use efficiency
氮利用效率
1.
Estimation of quantitative genetic parameters for improving nitrogen use efficiency in North China summer maize;
华北平原夏玉米氮利用效率的遗传参数估计
2.
conventional varieties and 16 hybrid combinations were employed in pot experiment to investigate genotypic differences of nitrogen use efficiency of Indica rice.
4随品种 (组合 )产量水平的提高 ,杂交籼稻及常规籼稻的氮利用效率 (包括 NUEp及 NUEg)下降 ,且变化幅度减小 ,而氮收获指数 (NHI)则有所提高。
3) nitrogen use efficiency
氮素利用效率
1.
Yield of new CMS line JW803A and its combining ability of nitrogen use efficiency;
杂交水稻新质源不育系JW803A产量及其氮素利用效率的配合力分析
2.
As a large amount crop straw is returned to soil in North Henan,there is an urgent need to develop new techniques for improving nitrogen use efficiency.
初步研究表明,秸秆还田短期内提高了冬小麦氮素利用效率,改善了籽粒品质,减少了0~200 cm土层土壤剖面硝态氮残留量;豫北秸秆还田配施纯氮以180~270 kg/hm2为宜。
3.
The regional distributions of water and nitrogen use efficiency(WUE and NUE),and nitrogen loss were studied under the soil,meteorological and rural socio-economical condition of HHHP in 1999 by the GIS-based model.
结果表明,由于自然条件和农田管理措施的差异,水分利用效率(WUE)、氮素利用效率(NUE)及土壤氮素淋失情况的空间分布在各地貌区划区之间有明显差异。
4) nitrogen use efficiency
氮肥利用效率
1.
Effects of controlled release fertilizer on rice yield and nitrogen use efficiency;
控释肥对水稻产量和氮肥利用效率的影响
2.
To test the effects of application of ecological fertilizer NutriSmartTM combined with chemical fertilizer(NSCF)on rice yield and nitrogen use efficiency,a field experiment was carried out in Hangzhou,China.
通过田间试验研究了"绿营高TM"生态肥与化肥不同比例配施对水稻产量和氮肥利用效率的影响。
3.
With the summer maize as material and by field experiment,the nitrogen real-time monitoring technology was constructed based on the soil nitrate nitrogen test and nitrogen balance to increase the maize yield and the nitrogen use efficiency.
以夏玉米为研究对象,通过田间试验,建立了基于土壤硝态氮测试和氮素平衡的氮素实时监控技术,以促进作物产量和氮肥利用效率协同提高。
5) Physiological N use efficiency
氮生理利用效率
6) N use efficiency
氮素利用效率
1.
It is well known that N use efficiency is varied in different rice genotypes.
选用氮素利用高效型和低效型具有代表性的12个粳稻品种,研究了225kghm-2施氮条件下根系形态和生理指标的差异及其与氮素利用效率的相互关系。
2.
N use efficiency is varied in different rice genotypes.
选用氮素利用高效型和低效型具有代表性的12个粳稻基因型,研究水稻氮素积累、转移特性的差异及其与氮素利用效率的相互关系。
3.
Improvement of tea plant N use efficiency through breeding is an important approach to solve the problem.
用盆栽法对6个茶树品种的氮素利用效率、氮素吸收速度、同化速度、根系参数、4个品种茶树叶片谷氨酰胺合成酶(GS)活性和用水培法对不同品种茶树NH+4N的吸收动力学参数(Km和Vmax)进行了研究。
补充资料：配置效率和生产效率
在经济学上，经济发展的动力，或者说效率的来源，分为两类：一类是配置效率，二是生产效率。所谓配置效率，是指给定资源和技术的条件下，怎么样使资源从边际生产率低的地方流向边际生产率高的地方，从而使得资源和利用更合理、社会总价值达到最大;而生产效率是指如何通过技术进步提高每一种资源的生产率，也就是把社会的生产可行性边界向外移。
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