The clay content and clay composition of the tested soils are the two important factors influencing their fixed ammonium content and maximum capacity of ammoniumfixation.
土壤粘粒含量和粘土矿物组成是决定土壤固定态铵含量及最大固铵容量的两个主要因素。
2
The fixation and adsorption of ammonium are important parts of nitrogen recycle in soils.
铵的矿物固定和吸附是土壤氮素循环中的重要环节。
3
The quaternary ammonium salt polymer PDA was applied on dye fixation process for pigskin suede leather on the basis of dye fixation principle of quaternary ammonium salts.