苗圃灰色潮土大团聚体粒级的氮素分布特性  

Nitrogen Distribution Characteristics of Macro-Aggregate Particle Fractions of Nursery Aquod

作　　者：尹幸福[1] 董黎丽[1] 

机构地区：[1]四川省林业学校

出　　处：《四川林业科技》1991年第3期24-27,共4页Journal of Sichuan Forestry Science and Technology

摘　　要：本文对苗圃灰色潮土大团聚体进行分析表明:水稳性团聚体含量为47.55％。水稳性团聚体各粒级上的有机质与相应粒级上的全氮含量呈极显著的线性相关(F=38.81>F_(0.01)=21.2),而与相应粒级上的水解性氮之间无显著相关性。The results of analyzing macro - aggregates of nursery aquod have shown that the water-stable aggregates make up 47. 55%. Organic matter on every particle fraction of the waterstable aggregates is obviously linear with total nitrogen content on the correspondent particle fraction(F = 38. 81F0. 01 =212) but no evidently correlated with hydrolysable nitrogen on the correspondent particle fraction.

关 键 词：灰色潮土 苗圃 土壤团聚体 

分 类 号：S723.12[农业科学—林木遗传育种]