摘要
PreferentialFixationofAmmoniumtoPotassiumbySoils¥TANGYAN;FENGKEandYINSHIXUE(DepartmentOfAgronomy,AgriculturalCollege,Yangzhou...
Ten soils collected from different parts of China were used in a series of experiments to study fixation of NH ̄+_4 and K ̄+ by soils. When K ̄+ was added concurrently with or prior to NH ̄+_4, the soils were found to fix more moles of NH ̄+_4 than those of K ̄+, irrespective of the mole ratios of NH ̄+_4 to K ̄+ that were added.
关键词
铵固定
钾固定
土壤
优先性
ammonium fixation, potassium fixation, soils