土壤2011，Vol.43Issue(2)：306-311,6.
施用有机肥对土壤团聚体稳定性的影响
Effects of Organic Manure Application on Stability of Soil Aggregates
摘要
Abstract
Organic manure application is a typical measure of circular agriculture, which can ensure food healthy and improve soil sustainable utilization. The vegetable greenhouse at Quzhou research station was selected to study the effects of organic manure on the stability of soil aggregates,three different treatments were designed, i.e., organic manure application, chemical fertilizer mixed with organic manure, chemical fertilizer application. The results after 6a showed that soil organic carbon content of organic manure application was 107.02％ and 171.71％ respectively higher than chemical fertilizer mixed with organic manure and chemical fertilizer; the mean weight diameter r (MWD) and geometric mean diameter (GMD)of water-unstable aggregates of organic manure application were 65.68％, 4.18％ and 16.80％, 8.26％ respectively higher than chemical fertilizer mixed with organic manure and chemical fertilizer in dry sieving; the MWD and GMD of water-stable aggregates of organic manure application were 41.12％, 34.78％ and 77.78％, 63.16％ respectively higher than chemical fertilizer mixed with organic manure and chemical fertilizer in wet sieving;organic manure application increased soil disperse coefficient at 0-20em soil layer, but reduced soil disperse coefficient at 20-40cm soil layer.Organic manure application can increase soil organic carbon content, water-instable aggregate and water-stable aggregate, and the microaggregate content below the tillage layer, thus it is the effective measure to improve soil structure.关键词
施用有机肥/团聚体稳定性/平均重量直径/几何平均直径Key words
Organic manure application/ Stability of aggregate/ MWD/ GWD分类
农业科技引用本文复制引用
赵红,袁培民,吕贻忠,李季..施用有机肥对土壤团聚体稳定性的影响[J].土壤,2011,43(2):306-311,6.基金项目
国家十一五支撑项目(2006BAD15B01,2007BAD89B08)和农业公益性行业专项(200803036)资助. （2006BAD15B01,2007BAD89B08）
