有机物料对黄河三角洲滨海盐土根际效应的影响Ⅰ．──养分和酶生物学效应  

Rhizospheric effects of organic material on coastal saline soil in Huanghe River Delay Ⅰ.Effect on soil nutrient and enzyme activity.

作　　者：吴龙华[1] 张素君[1] 

机构地区：[1]中国科学院沈阳应用生态研究所

出　　处：《应用生态学报》1995年第2期160-165,共6页Chinese Journal of Applied Ecology

基　　金："八五"中国科学院重点项目

摘　　要：采用根际袋法研究腐熟有机物料对滨海盐土水稻根际养分和酶活性特征的影响．结果表明，施用有机物料可增加土壤有效Ｎ、Ｐ、Ｋ、Ｆｅ和Ｚｎ的含量，增强土壤尤其根际土壤的转化酶、碱性磷酸酶和豚酶活性，可加速土壤有机Ｃ、Ｎ、Ｐ的代谢作用，增加水稻养分吸收，改善生长发育，增强耐盐性．In this paper, rhizobox method is used to study the effect of composted organic materialon soil nutrient and enzyme activity in paddy rice rhizosphere of coastal saline soil. Theresults show that the application of organic material can increase the contents of soil available N, P, K, Fe and Zn, activate the activity of soil enzyme, especially of rhizosphericinvertase, alkaline phosphatase and urease, accelerate the metabolism of soil organic carbon, nitrogen and phosphorus, enhance the nutrient uptake by rice plant and its salt tolerance.

关 键 词：有机物料 滨海盐土 养分 酶活性 

分 类 号：S156.42[农业科学—土壤学]