1)  Variety
无氮肥
2)  non-nitrogen
无氮
1.
The sugarcane varieties were treated in pot under non-nitrogen fertilzer condition,which had been derived from stem apical culture and cloned for 4 generations.
取从巴西引进的甘蔗品种B1、B3、B5、B8以及广西主栽品种新台糖16号、桂糖11号的茎尖进行组织培养,对其继代4次的茎尖组培苗进行有氮与无氮培养对比以及温室无氮盆栽品比试验。
3)  non-nitrogen experiment
无氮实验
4)  N-free diet
无氮日粮
1.
66 kg were allocated into 3 groups to feed diets with PPM or soybean meal(SBM)as only protein source,and N-free diet to determine endogenous amino acid excretion to calculate amino acid true digestibility.
以PPM和豆粕(SBM)分别作为唯一蛋白源配制半纯合日粮,采用无氮日粮法测定两者猪回肠末端氨基酸的表观消化率和真消化率。
5)  Protein-free diet
无氮日粮
1.
01)during the first 3d of feeding protein-free diet,thereafter decreased significantly and became relatively constant in next 6d(P>0.
选50周龄罗曼蛋鸡5只,用强饲法供给无氮日粮53克/千克W0。
6)  nitrogen-free filter paper
无氮滤纸
参考词条
补充资料:铵态氮肥
分子式:
分子量:
CAS号:

性质:以铵盐或氨为主要成分的氮肥。主要有氨水、液氨、硫酸铵、碳酸氢铵、氯化铵和磷酸铵等。能溶于水,肥效快,易被土壤和作物所吸收。可用于各种土壤,特别适用于水田。但氨水和液氨易流失,碳酸氢铵也易分解损失。不可与草木灰、石灰等碱性肥料相混合,以免引起氨的损失。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。