双城市农田黑土机械组成与土壤全碳和全氮磷钾养分含量的相关性分析

Correlation Analysis Between Black Soil Textures and Total Carbon,Nitrogen,Phosphorus,Kalium Contents in Shuangcheng Cropland

主要以双城农田黑土为对象,研究双城土壤颗粒机械组成、全量养分含量,探讨土壤机械组成与土壤全量养分的相关性。结果表明,双城市农田黑土机械组成中粉粒(0.02 mm^0.002mm)占21.41%,黏粒(<0.002mm)占30.50%;粉粒(0.02 mm^0.002mm)与土壤全氮、全磷、全碳含量呈极显著正相关,与全钾不相关;黏粒(<0.002mm)与全氮、全碳呈极显著负相关,与全钾、全磷不相关。表4,参10。

Correlation between black soil textures and total nutrient contents in Shuangcheng cropland was analyzed in this study. The results showed： silt contents （0.02mm-0.002mm） and clay contents （ 〈 0.002mm） were 21.41 percent and 30.50 percent, respectively. There were great significantly different between silt content and total C, N, and P, no significant difference was found between silt content and total K content; clay content（ 〈 0.002mm） had negative great significant difference with total C and N, no significantly different with total P and K.