Comprehensive Evaluation of the Soil Quality and the Relationship between Biomass and Soil Elements in Two Orchards
[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.Mter 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,pH,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.
国家科技期刊平台
NSTL
万方数据
维普
