1) control
施氮量调控
2) Nitrogen application
施氮
1.
Effect of weed and nitrogen application on grain yield of summer maize and nitrogen use in semi-moist field;
半湿润农田杂草及施氮对夏玉米产量及氮素利用的影响
2.
Effects of nitrogen application on the yield and quality of Triticale cereale;
小黑麦牧草产量与品质对施氮的响应
3.
The experiments of nitrogen application were conducted with Bromus inermis to study the changes of seed yield in 2002 and 2003.
以无芒雀麦为实验材料,经过2 年研究观测,结果发现,施氮处理对无芒雀麦种子产量影响显著,秋季施氮135 kg/hm2、春季施氮90 kg/hm2时,种子产量最高达1 723。
3) N application
施氮
1.
A field experiment on manual loessial soil was conducted to study the dynamic changes of NO3——N in soil profile,utilization rate of fertilizer N,and relationships between N application rate and soil residual N accumulation during the growth period of summer maize under different N application rates(0,45,90,135,and 180 kg·hm-2).
以土垫旱耕人为土为供试土壤,通过田间试验,研究了不同施氮量下(0、45、90、135和180 kg。
2.
To understand the N uptake of weeds in wheat field to different N applications and the competition on the N absorption between weeds and wheat,plot trials were carried out in the semi-humid areas.
为了解麦田杂草氮素吸收对施氮量的反应,在半湿润地区,以土垫旱耕人为土为供试土壤,通过田间小区试验,研究了不同施氮水平下冬小麦田间杂草含氮量及吸氮量的变化以及杂草与小麦氮素的竞争关系。
3.
Comprehensive effect of limited irrigation, N application and DPC regulation on the yield of cotton;
利用简易坑测与大田试验相结合的方法,采用三因素正交旋转回归设计,对限水灌溉与施氮、化控进行了组合研究,并相对皮棉产量效应模型建立了三项技术措施。
4) nitrogen fertilization
施氮
1.
Effects of nitrogen fertilization on growth and vivo Cl~- and Na~+ accumulation of winter wheat under NaCl stress;
氯化钠胁迫下施氮对冬小麦生长发育及体内氯、钠离子积累的影响
5) N-fertilized and N-unfertilized
施氮与未施氮
6) nitrogen application amount
施氮量
1.
Influence of nitrogen application amounts of different scales in small watershed of Three Gorges reserving area on water body;
三峡库区小流域不同尺度施氮量对水体的影响
2.
Investigation on the effects of nitrogen application amount on the growth and production of glehnia littoralis under field condition showed that along with the change of increasing nitrogen amount,the plant height,leaf area index(LAI)and the aboveground dry weight increased.
在大田栽培条件下,研究了施氮量对北沙参生长和产量的影响。
3.
Late ripen mid-season rice "Tong Yu Jing 1" was used as material to study the influence of nitrogen application amount on yield, quality and effect of rice under shed protection field.
以迟熟中粳品种“通育粳1号”为材料,研究了施氮量对大棚保护地茬水稻产量、品质及效益的影响。
参考词条
补充资料：氮质生化需氧量
分子式：
CAS号：
性质： 在BOD检验中，氨氧化为亚硝酸盐或硝酸盐时取用的生化需氧量，即第二阶段生化需氧量。通常水样培养10天后才产生此氧化作用，因此，5天生化需氧量不包括氮质生化需氧量。生物硝化过程包括两个阶段，第一阶段氨转化为亚硝酸盐，第二阶段亚硝酸盐转化为硝酸盐。
CAS号：
性质： 在BOD检验中，氨氧化为亚硝酸盐或硝酸盐时取用的生化需氧量，即第二阶段生化需氧量。通常水样培养10天后才产生此氧化作用，因此，5天生化需氧量不包括氮质生化需氧量。生物硝化过程包括两个阶段，第一阶段氨转化为亚硝酸盐，第二阶段亚硝酸盐转化为硝酸盐。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。