1) contribution rate of fertilization
施肥贡献率
1.
Effects of stubble on crop yield-increase efficiency,soil nutrient status,and contribution rate of fertilization under different fertilization systems;
不同施肥制度下茬口对作物产量增益、土壤养分状况及施肥贡献率的影响
2) Contribution of fertilization
施肥贡献
3) contribution of chemical fertilizer
化肥贡献率
4) nitrogen contribution rate
氮肥贡献率
5) contribution rate of fertilizer
肥料贡献率
1.
The results showed that, there were significant regional differences on basic fertility, increasing in yield and contribution rate of fertilizer in the paddy field of Jianghuai region.
结果表明,江淮地区稻田基础地力、施肥增产幅度、肥料贡献率呈现出明显的地域差异。
6) contribution ratio
贡献率
1.
The Empirical Analysis of Contribution Ration about China’s Human Capital for Economic Growth;
我国人力资本对经济增长贡献率的实证分析
2.
A research on the contribution ratio and developing strategies of Liaoning sports for the promotion of the old industry base;
辽宁体育对振兴老工业基地的贡献率及其发展策略
3.
The average contribution ration of point pollution source,area source and moving source was calculated at each concerned spots,being 17%,17% and 66% respectively.
采用定常高斯模式和Thlong程序建立NOx 污染源强与大气NOx 浓度间定量响应数值模型 ,计算了点源、面源和流动源等各类污染源对杭州市区各关心点NOx 的平均贡献率 ,分别约为 17% ,17%和 6 6 % ,其中市区机动车尾气贡献率高达 5 0 %左右 ,是首先要控制的污染源。
补充资料：贡献率
贡献率是指在地区生产总值增长率中各行业的贡献所占的份额。贡献率的含义是地区生产总值增长率中本行业贡献所占的比重。例如某年GDP增长10%，工业贡献为5个百分点，则工业贡献率为50%。
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