摘要
【目的】果园土壤质量受多方面因素影响,生草栽培是改善土壤肥力、营养状况的可行方法之一,为开发实用和普遍的果园土壤管理方式提供基础资料。【方法】采用果园生草法和清耕法2种不同处理方式的田间试验,采用PCA、SQI、相关性分析方法。【结果】反映土壤肥力状况的OM、TN、AP、AK和土壤盐分特征的Ca、Cu、Fe、Zn、Mn是果园土壤立地条件的主导因子。果园经过长时间的生草栽培可以明显提高不同年限果园土壤质量综合评价指数,增强了土壤的肥力条件和营养状况。果园地下生物量(UB)与土壤中AN、OM、TP、TK、AK、Ca、Cu、Fe、Mn、p H相关性显著,与土壤养分含量和SQI存在显著的线性关系。【结论】果园通过生草的方式改善了土壤的理化性质,提高了土壤质量综合评价指数,增强了土壤生物量与土壤元素的相关性,使得土壤生物量和SQI及土壤养分含量的关系更为密切。
【Objective】The soil quality of orchard is affected by many factors,grass planting is one of the feasible methods to improve soil fertility and nutrition status,this project aims to provide basic data for the development of practical and universal soil management methods in orchards.【Method】Based on field trials of grass orchard and clean tillage orchard in two different treatments,using PCA and SQI,correlation analysis method.【Result】OM,TN,AP,AK can reflect the status of soil fertility and Ca,Cu,Fe,Zn,Mn can reflect characteristic of soil salinity,which are the dominant factors of soil site conditions in orchard. After a long time of orchard grass cultivation they can significantly improve the comprehensive evaluation of soil quality in different age orchard index,enhance soil fertility conditions and nutritional status. The correlation of TP,OM,TK,AK,Cu,Fe,p H,Mn,Ca,AN and UB were significantly correlated with the soil of the orchard,linear relationship with soil nutrient content and SQI.【Conclusion】The physical and chemical properties of the soil were improved by the way of planting grass and improved SQI,the correlation between soil biomass and soil elements was enhanced and the relationship between soil microbial biomass and SQI and soil nutrient content was more closely related.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2016年第6期1081-1090,共10页
Xinjiang Agricultural Sciences
基金
新疆维吾尔自治区"十二五"科技重大专项"新疆特色果树高效安全生产关键技术研究集成与示范"课题(201130102-1)~~
关键词
生草栽培
苹果
土壤质量
主成分分析
综合评价
sod culture
apple
soil quality
principal component analysis
integrated evaluation
作者简介
史进（1991-），男，新疆人，硕士研究生，研究方向为果树栽培与生理，（E-mail）450990068@qq．com
通讯作者（Cotnesponding author）：李文胜（1968-），男，新疆人，副教授，硕士研究生导师，研究方向为果树栽培与生理，（E-mail）lwxs8@qq．com
