氮素利用效率,nitrogen use efficiency
1)nitrogen use efficiency氮素利用效率
1.Yield of new CMS line JW803A and its combining ability ofnitrogen 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 improvingnitrogen 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 andnitrogen 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。
英文短句/例句
1.Nutrient Use Efficiency of Main Plants in an Agro-pastoral Ecotone of Northern China;农牧交错区主要植物的氮素利用效率
2.Study on Nitrogen Use Efficiency of Mo17 and Its Derived LinesMo17及其衍生系氮素利用效率研究
3.Eco-physiology and Regulation of Nitrogen Use Efficiency in Wheat;小麦氮素利用效率的生理生态与氮肥调控研究
4.Studies on the physiological parameters related to nitrogen use efficiency in wheat cultivars with different nitrogen utilization不同氮素利用效率小麦品种的氮效率相关生理参数研究
5.Analyzed Quantitative Traits Loci Associated with Nitrogen Use Efficiency and Variations of Nitrogen Use Efficiency in Rice;水稻氮高效有关性状QTLs定位及不同基因型氮素利用效率差异分析
6.Study on nitrogen utilization ratio of peanut varieties with different botany characters花生不同类型品种氮素利用效率的研究
7.The Effects of Weeds on the Winter Wheat Yield and the Nitrogen Use Efficiency;田间杂草对冬小麦产量及氮素利用效率的影响
8.Advance of rice fertilizer-nitrogen use efficiency水稻氮素利用效率的研究进展及其动向
9.Effect of Nitrogen Fertilization on the Growth of Chamaecrista Rotundifolia and Nitrogen Utilization Efficiency;施用氮肥对圆叶决明生长及氮素利用效率的影响
10.Study on Differences in Response of Rice Genotypes to Nitrogen Fertilization and Nitrogen Use Efficiency不同水稻基因型对氮肥反应的差异及氮素利用效率的研究
11.Temporal and Spatial Distribution of Leaf Nitrogen/Carbon and Its Relationships with Nitrogen Utilization Efficiency in Winter Wheat;小麦冠层氮/碳时空分布特征及与氮素利用效率的关系
12.Research Progress on Effect of Nitrogen Management on Nitrogen Transfer and Nitrogen Use Efficiency in Soil-wheat System氮肥运筹对土壤—小麦系统氮素行为及氮素利用效率影响的研究进展
13.Differences of Nitrogen Utilization Efficiency and Its Physiological Mechanism in Different Wheat Related Species;小麦不同近缘种氮素利用效率的差异及其生理机制
14.Study on the Relation of Photorespiration to Nitrogen Use Efficiency in Different Rice Genotypes;不同基因型水稻光呼吸与氮素利用效率关系的研究
15.Study on Differences in N Use Efficiency and the Mechanism in New Clones of Populus Seedlings under Different N Treatments黑杨新品系苗期氮素利用效率的差异及机理研究
16.Effects of Nitrogen Application Rate on Nitrogen Absorption,Translocation and Fertilizer-nitrogen Use Efficiency in Japonica Rice Cultivar Nanjing 44施氮量对南粳44氮素吸收运转及氮肥利用效率的影响
17.Studies on the Genetic Difference of Nitrogen and Phosphorus Utilization Efficiency in Winter Wheat Varieties;不同小麦品种氮磷素利用效率的遗传差异研究
parative Studies on Characteristic of Nitrogen Uptake and Utilization and Differences of Nitrogen Use Efficiency of Different Oilseed Rape Cultivars;不同油菜品种氮素吸收利用特性与氮效率差异的比较研究
相关短句/例句
Nitrogen utilization efficiency氮素利用效率
1.Effects of interaction between irrigation and rate of nitrogen on concentration of nutrients, yield, quality and nitrogen utilization efficiency of flue-cured tobacco;灌水与氮用量互作对烤烟叶片养分含量、产量、品质及氮素利用效率的影响
3)N use efficiency氮素利用效率
1.It is well known thatN 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 plantN 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。
4)Nuse efficiency氮素养分利用效率
5)nitrogen-absorbing ability and nitrogen-utilizing efficiency氮素吸收利用效率
1.A recombinant inbred lines population(RILs)of 163 lines derived form a cross of Dasanbyeo(indiaca)/TR22183(japonica)was evaluated for analyzing inheritance of traits:nitrogen-absorbing ability and nitrogen-utilizing efficiency of rice at the maturity stage by the major genes plus polygenes mixed inheritance model of quantitative traits in plant.本研究以韩国籼稻品种多产稻(Dasanbyeo)与粳稻品种TR22183杂交后构建的重组自交系群体163个家系(F_7),通过植物数量主基因+多基因混合遗传模型及相应的分析方法对氮素吸收利用效率进行遗传分析;并对氮素吸收利用效率与重要农艺性状相关性进行分析。
6)physiological N-use efficiency氮素利用生理效率
1.The results showed that:The additive effects was principal in dry weight andphysiological N-use efficiency at maximum tillering stage,dry weight(DWB)andphysiological N-use efficiency at booting stage under N-fertilize and N-unfertilized conditions,physiological N-use efficiency at .结果表明,最高分蘖期和孕穗期的干物重和氮素利用生理效率,在两种氮素水平下亲本的加性效应均对 F_1起主导作用,而收获期氮素利用生理效率在施氮条件下遗传变异主要来自基因的加性效应,而未施氮条件下主要来自于非加性效应;产量的遗传变异在施氮条件下来自基因加性和非加性效应,而未施氮条件下主要来自基因加性效应。
延伸阅读
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。
