寒旱农业科学2023，Vol.2Issue(12)：1116-1120,5.DOI:10.3969/j.issn.2097-2172.2023.12.006
陇东半干旱区果园间作绿肥对土壤肥力的影响研究
Effects of Green Manure Intercropping on Soil Fertility of Orchards in Longdong Semi-arid Region
摘要
Abstract
The issue of soil fertility decline in traditional clean tillage orchards seriously threatens the sustainable development of the apple production.In order to reveal the changes of soil nutrients and soil trace elements in orchards with green manure in tercropping in the semi-arid area of Longdong so as to provide references for scientific intercropping and soil fertility improvement in orchards,the apple orchards in Jingning County was taken as the research object,and seven intercropping planting modes of green manure were selected to study effects of green manure intercropping on soil fertility in orchards.The results showed that the soil fertility of orchard intercropping green manure was generally characterized by low levels of soil organic matter and nitrogen content,but the contents of soil available nitrogen and available phosphorus were relatively rich.Among them,the soil nutrient of 3-year-old orchard intercropping green manure was better than that of 6-year-old ones.The differences of soil available zinc,available manganese and available iron among different treatments were extremely significant.The soil available zinc content of 3-year-old orchard intercropping green manure mode was generally higher than that of 6-year-old orchard.The contents of available manganese and available iron in soil were above the middle level and increased with the growth of orchard age.The content of available copper in soil was at the middle level,and there was no significant difference detected along with the growth of orchard age.Among different planting modes,the 2-year hairy vetch plus 1-year lentil planting mode was the optimal planting mode,which is economical and environmentally friendly and can be promoted in local production.关键词
苹果园/绿肥/间作/种植模式/土壤肥力/陇东半干旱区Key words
Apple orchard/Green manure/Intercropping/Planting mode/Soil fertility/Longdong semi-arid region分类
农业科技引用本文复制引用
杨蕊菊,张久东,车宗贤,卢秉林,崔恒..陇东半干旱区果园间作绿肥对土壤肥力的影响研究[J].寒旱农业科学,2023,2(12):1116-1120,5.基金项目
国家现代农业绿肥产业技术体系(CARS-22-Z-16). （CARS-22-Z-16）
