1)  NH+4
NH4+
1.
In order to investigate the interaction of NH+4 with K+ in cotton seedlings,an hydroponics experiment containing three K+ concentrations(0.
在溶液培养条件下研究了NH+4+对棉花不同基因型幼苗干物质积累以及K+吸收和利用的影响。
2.
The results showed that the controlled-release nitrogen fertilizer could significantly extend its release time in the soil,and keep higher NH+4-N concentration for longer time,but the NO-.
结果表明,控释氮肥能明显延长氮在土壤中的留存时间,与普通尿素相比,NH+4+-N浓度明显提高并能持续较长时间;而NO3--N变化不大,使NO3--N占总无机态氮含量的比例降低。
3.
It is a common way to apply NH+4 and K+ together in farming.
NH+4+和K+共施在农田施肥中是很普遍的现象,研究它们共施后二者在土壤中的交互作用对指导施肥具有重要意义。
2)  NH+4
铵离子
1.
The nitrogen uptake and transportation of NH+4 among different cells in plant tissues and organs are mediated by the ammonium transporters(AMTS).
植物对铵离子的吸收和铵离子在细胞间的转运是铵转运蛋白介导的需能主动运输过程。
3)  NH + 4
NH+4
1.
Objective To fabricate the NH + 4 sensitive urea sensor with reinforced ion sensitive field effect transistor (ISFET) using the plane semiconductor technique with biochemical theory, and to evaluation its detecting function.
目的　结合平面半导体技术及生物化学原理 ,制作NH+4敏感的尿素传感器 ,并对其检测性能进行评价。
4)  NH + 4 N load
NH+4-N负荷
5)  NH+4 pollution
NH+4污染
6)  fixed NH+4
固定铵
1.
In this study,significant anomalies of available potassium(K) and fixed NH+4 were foun.
对洛川黄土S1/L1界面处的固定铵和速效钾进行了研究,结果表明,YTT在洛川黄土S1/L1界面处有很清楚的记录,具体表现为固定铵和速效钾的特殊异常。
参考词条
补充资料：Ac-[Nle4,Asp5,D-Phe7,Lys10]alpha-MSH-(4-10)-NH2
分子式：C50H69N15O9
分子量：1024.18
CAS号：121062-08-6

性质：密度1.43。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。