土壤不同形态钾含量与土壤颗粒的关系  

Relationship Between Different Potassium forms of Soil and Soil Texture

作　　者：孙广林[1] 喻猛 张中原[1] 

机构地区：[1]沈阳市土肥站,沈阳110034

出　　处：《中国农村小康科技》2006年第10期51-55,共5页Chinese Countryside Well-off Technology

摘　　要：土壤含钾矿物同其他矿物颗粒一起均分布在不同粒级的土粒中,这些土粒在不同的土壤中构成了不同的配合比例,形成不同的土壤质地的属性。统计表明,<0.05mm与<0.01mm粒级间呈极显著线性相关(r=0.896**,n=92),相关分析表明,不同粒级的土粒与不同形态钾间呈显著线性或曲线显著相关,而全钾只与<0.05mm粒径的土粒呈极显著相关(r=0.234**,n=73),全钾与速效钾的数量关系通过全钾、<0.05mm、<0.01mm粒级与速效钾系统相关组合的算式以数学的方法计算速效钾含量。Potassium minerals and other mineral particles are distributed all over soil separate.These particles in different soils constitute various mixed proportion and form different properties of soil texture. The results of statistical analysis show zhat zhere are significantly linear or curvilinear correlation between different soil particles（〈0.05mm and 〈0.01mm）and various forms of potassium in soils （r=0.896^＊＊, n=92）. However,there is clearly correlation between soil total poatassium and less0.05mm soil particles（r=0.234^＊＊, n=73）.Soil available potassium is caculated by thd correlated conbination equations of soil total potassium, 〈0.05mm particles,〈0.01mm particles and available potassium.

关 键 词：土壤 全钾 速效钾 缓效钾 质地 土壤粒级 

分 类 号：S15[农业科学—土壤学]