土壤与作物2025，Vol.14Issue(4)：480-486,7.DOI:10.11689/sc.2025061401
有机无机配施对南方稻油模式土壤化学性质和水稻增产增效的影响
Effects of organic and inorganic fertilizer integration on soil chemical properties and rice yield/benefits in southern rice-rapeseed system
摘要
Abstract
To investigate the effects of combined applications of lime,green manure,straw,and organic fertilizer on mitigating soil acidification and enhancing rice yield and economic benefits under a rapeseed–rice rotation system,a three-year field experiment was conducted.The experimental treatments included conventional fertilization with lime(L),green manure(G),organic fertilizer(M),straw(S),and a combination of lime,green manure,organic fertilizer,and straw(L+G+M+S),with conventional fertilization alone serving as the control(CK).From 2021 to 2023,changes in soil pH,organic matter content,total nitrogen,available phosphorus,available potassium,slow-release potassium,total cadmium content,rice yield,and economic returns were systematically monitored and analyzed,and the correlations among these parameters were further examined.Results indicated that all improvement measures(L,G,M,and L+G+M+S)increased soil pH compared to CK.However,only the L+G+M+S treatment showed a statistically signifi-cant increase,with an average rise of 0.44 pH units.Soil organic matter increased under all treatments,but significant improvements were observed only in the G,M,and L+G+M+S treatments,which increased by 9.19%,11.4%,and 10.0%,respectively.Total nitrogen content increased under L,G,and L+G+M+S treatments by 11.2%,12.4%,and 7.69%,respectively.Available phosphorus also increased across L,G,M,and L+G+M+S treatments,with only the M treatment showing a significant increase of 11.5%compared to CK.Soil slow-release potassium increased under G,M,S,and L+G+M+S treatments,with significant increases observed in G,M,and S treatments,rising by 10.7%,6.05%,and 9.51%respectively.The L+G+M+S treatment also reduced soil cadmium content,with an average decrease of 0.02 mg·kg-1.Among all treatments,the comprehensive improvement measure(L+G+M+S)effectively enhances the chemical properties of acidified soils,and demonstrates the most pronounced effects on increasing rice yield and net income,with a yield increase of 18.2%and an income rise of 1 776 yuan·hm-2.关键词
土壤酸化改良/石灰/绿肥/有机肥/秸秆还田/水稻产量Key words
soil acidification improvement/lime/green manure/organic fertilizer/straw return to field/rice yield分类
农业科技引用本文复制引用
袁伟,何小林,周彩云,熊鹏,梁丰,柳开楼,彭新华..有机无机配施对南方稻油模式土壤化学性质和水稻增产增效的影响[J].土壤与作物,2025,14(4):480-486,7.基金项目
井冈山农高区省级科技专项"揭榜挂帅"项目(20222-051261) （20222-051261）
江西省重点研发计划"揭榜挂帅"项目(20223BBF61020). （20223BBF61020）
