摘要
通过野外调查与室内分析相结合的方法,对贵阳乌当区4种用地方式(菜地、果园、林地和荒地)下土壤肥力特征进行分析研究。结果表明:4种用地方式下土壤都处于酸性,土壤pH值依次为果园(5.27)>菜地(4.76)>林地(4.70)>荒地(4.69);有机质含量比较丰富,有机质含量荒地的最高为56.09g/kg,最小的是林地47.99g/kg;全氮含量变化表现为荒地(0.76g/kg)>菜地(0.67g/kg)>果园(0.65g/kg)>林地(0.47g/kg);全磷含量大小顺序为果园(0.85g/kg)>菜地(0.81g/kg)>荒地(0.70g/kg)>林地(0.47g/kg);全钾含量依次为菜地(1.02g/kg)>荒地(0.50g/kg)>林地(0.40g/kg)>果园(0.30g/kg)。研究结果可为乌当区土壤改良和高产优质的栽培技术提供理论基础。
Based on field investigation and laboratory analysis, the soil fertility characteristics in four ways of land use, including vegetable plot, fruit ranch, forestland and wasted land were analyzed. The result showed that the soil was acid in these four ways of land use, the pH of.the soil from fruit ranch, vegetable plot. forestland and wasted land were 5.27, 4.76, 4.70 and 4.69 in order respectively. The organic content was relatively rich, the highest was wasted land whose content reached 56. 09 g/kg, the lowest was forestland whose content was 47. 99 g/kg. The contents of total nitrogen of wasted land. fruit ranch, vegetable plot and forestland was 0. 76g/kg, 0.67g/kg, 0. 65g/kg and 0. 47g/kg in order respectively. The content of total phosphorus of fruit ranch, vegetable plot, wasted land and fore;tland was 0. SSg/kg, 0. 51 g/kg , 0. 70g/kg and 0. 47g/kg in order respectively. The content of total potassium of fruit ranch, wasted land, forestland and fruit ranch was 1. 02g/kg, 0.50g/ kg, 0. 40g/kg and 0. 30g/kg in order. The research results can provide the theoretical basis for soil improvement and the culti＇vation＇ techniques of high yield and good quality.
出处
《耕作与栽培》
2013年第3期4-5,15,共3页
Tillage and Cultivation
基金
贵州省科技厅计划项目(黔科合体R重字[2011]2003
贵州科学院青年基金项目(黔科院J合字[2011]08号)
关键词
用地方式
土壤肥力
乌当区
way of land use
soil fertility characteristics
Wudang District
作者简介
张家春（1988-）,男,硕士研究生,研究方向：土壤肥力与作物生产.
通讯任者：张玉武（1982-）,男,副研究员,主要从事资源植物学方面的研究.
