1) nitrogen fertilization recovery rate
氮素累积利用率
1.
The pond and field experiments were conducted to research dynamic characters of biomass,nutrients(nitrogen,phosphor,potassium) uptake and nitrogen fertilization recovery rate of cotton after anthesis under different water and nitrogen applications.
灌水使240 kgN/hm2处理棉花(整株、营养器官、生殖器官)生物量和养分快速累积期持续时间缩短、最大累积速率出现时间提前、最大累积速率和累积量增大、氮素累积利用率和产量提高;而使480 kgN/hm2处理棉花营养器官生物量和养分快速累积期持续时间延长、最大累积速率出现时间推迟、生物量和养分最大累积速率及累积量增大、氮素累积利用率提高,而生殖器官相应指标呈降低趋势;灌水对不施氮处理棉花生物量和养分累积各项特征参数影响较小。
2) Utilization ratio of NO_3~-N
累积氮利用率
3) Nitrogen accumulation and utilization
氮积累和利用
4) N use efficiency
氮素利用率
1.
Influence of nitrogen rates with split application on N use efficiency and its eco-economic suitable amount analysis in rice
分次施氮对单季稻氮素利用率及生态经济适宜施氮量的影响
2.
A pot experiment showed that under NH\-2-N treatment,strong gluten wheat Yumai 34 had the highest root biomass,root activity,N use efficiency,N harvest index and grain protein content,but all of these were the lowest under NO -\-3-N treatment.
采用盆栽方法研究了 3种氮素形态对不同专用型小麦根系及氮素利用率的影响 。
3.
The effects of N application levels on N use efficiency in different rice growth stages and the dynamic variation of N leaching in paddy field is important to ensure sustainability of paddy soil fertility and to develop reasonable crop N nutrient management protocols.
2006-2007年在杭州市农业科学研究院实验田进行了在不同生育期内,不同施氮水平对水稻生长及地上部氮积累、氮素利用率及氮淋失动态变化的影响实验。
5) nitrogen use efficiency
氮素利用率
1.
Influence of nitrogen fertilizer rate on carbon-nitrogen metabolism and nitrogen use efficiency of summer maize under high and medium yield levels
施氮量对不同肥力水平下夏玉米碳氮代谢及氮素利用率的影响
2.
Pot and field experiments were conducted to study the dosage and the effect of compound nitrogen fertilizer synergists combined with different dosage of urea on the growth,yield,uptake and nitrogen use efficiency of rice with()~(15)N-labled.
结果表明,适宜用量(施氮量的20%)的复合氮肥增效剂能显著促进水稻幼苗生长发育;尿素全量配施复合氮肥增效剂不影响水稻生长,能显著提高水稻植株N d ff%、氮吸收总量、氮素利用率和15N的吸收量;尿素减量5%~15%(即减少施氮7。
3.
By using the method of nutrient solution culture and simulated water stress (by adding PEG6000), the effects of different nitrogen forms (NO_3~-, NH_4~+, and the ratio of NO_3~- to NH_4~+ is 50∶50) and water stress interaction on nitrogen use efficiency and the characteristics of nitrogen consumption of rice plants at the tillering stage were studied.
在两种水分条件下,当NH4+/NO3-为50∶50时,分蘖期水稻对营养液中NO3--N的消耗量明显大于NH4+-N;此外,在两种水分条件下,均以单一供NH4+-N营养水稻的光合速率、氮素利用率和水分利用率最高。
6) nitrogen utilization efficiency
氮素利用率
1.
Effects of nitrogenous fertilizer management on yield and nitrogen utilization efficiency in late-season rice(Oryza sativa L.);
氮肥运筹对晚稻产量和氮素利用率的影响
2.
Compared with conventional fertilizer, Slow-release nitrogen fertilizer can effectively increase vegetable yield and nitrogen utilization efficiency, improve economic benefit, decrease nitrate content of vegetable and reduce environmental pollution.
缓释氮肥是21世纪肥料的替代产品,与常规肥料相比,缓释氮肥不仅可以有效提高蔬菜的产量和氮素利用率,增加经济效益,而且可以降低蔬菜体内硝酸盐的含量,减少环境污染。
3.
It is a demanding promptly solution important problem to improve nitrogen utilization efficiency in rice for high-quality, high-efficient , ecology , safe crop produce.
本试验以 6 个氮素利用率不同的代表性水稻品种为试验材料,设置 4种水平的施氮处理,即 N0(0kgN/hm2)、N1(50kgN/hm2)、N2(150kgN/hm2)、N3(250kgN/hm2)4 种施氮水平,研究了不同施氮水平对水稻氮素利用率的影响以及不同基因型水稻品种之间氮素利用率的差异,研究结果表明: 1。
补充资料：氨基酸利用率
分子式：
CAS号：
性质：又称氨基酸利用率。食物或饲料蛋白质中氨基酸组分中能被人或动物吸收或利用的程度。它取决于蛋白质消化率、酶抑制剂及抗酶多肽的存在，以及氨基酸在肠道的释放速度。由于吸收后不被利用的氨基酸在吸收的氨基酸总量中所占比例很小，故将消化率和利用率等同看待，但严格说来是有区别的。
CAS号：
性质：又称氨基酸利用率。食物或饲料蛋白质中氨基酸组分中能被人或动物吸收或利用的程度。它取决于蛋白质消化率、酶抑制剂及抗酶多肽的存在，以及氨基酸在肠道的释放速度。由于吸收后不被利用的氨基酸在吸收的氨基酸总量中所占比例很小，故将消化率和利用率等同看待，但严格说来是有区别的。
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