旱作农田不同耕作土壤养分状况研究  

Study of Soil Nutrients Condition in Different Cultivated Lands

作　　者：赵瑞芬[1] 程滨[1] 张强[1] 张一弓 

机构地区：[1]山西省农业科学院农业环境与资源研究所山西省土壤环境与养分资源重点环境室,山西太原030031

出　　处：《安徽农业科学》2011年第18期10893-10895,共3页Journal of Anhui Agricultural Sciences

基　　金：山西省基础条件平台建设项目(2009091004-0903);山西省科技攻关资助项目(20100311022-1);山西省青年科技研究项目(2010021028-7)

摘　　要：以太原市旱作农田土壤为研究对象,系统分析5种耕作土壤8种养分特征。结果表明,耕作土壤养分中速效钾变异系数最大,全氮变异系数最小;不同耕作土壤全氮、有机质、有效磷、速效钾和微量元素有效铁、锰、铜和锌差异在0.05水平显著。有效磷和速效钾平均含量表现为:玉米地>麦地>大豆地>马铃薯地>谷子地,全氮、有机质和微量元素的含量表现为:玉米地>麦地>大豆地>谷子地>马铃薯地。Soil nutrient condition in different cultivated farmlands was analyzed systematically in Taiyuan Province. The results showed that avail- able potassium had the biggest coefficients of variation. However, total nitrogen had the lowest values. Soil total nitrogen, organic matter, available P ,available K and available Cu,Zn,Mn,Fe were significantly affected by different cropping systems. The order of the content of soil total nitro- gen, the average content of available P and the content of available K were as follows ： maize land 〉 wheat land 〉 soybean land 〉 tomato land 〉 millet land, and the order of the total N, the organic matter and the micronutrients were as follows ： maize land 〉 wheat land 〉 soybean land 〉 mil- let land 〉 tomato land.

关 键 词：耕作土壤 土壤养分 含量 

分 类 号：S158.9[农业科学—土壤学]