中国土壤与肥料Issue(7)：93-99,7.DOI:10.11838/sfsc.1673-6257.25562
控混肥减量基施对直播杂交籼稻稻米产量和品质及效益的影响
Impacts of reduced basal application of controlled-release blended fertilizer on yield,quality and profitability in direct-seeded hybrid indica rice
摘要
Abstract
To investigate the effects of different controlled-release blended fertilizers(CRBFs)on rice yield and grain quality in sandy loam soils of the ancient Yellow River course in northern Jiangsu,a field experiment was conducted using hybrid indica rice'Shenyou Yuehesimiao'as test material.Five fertilization treatments were established,including Hansfeng slow-release blended fertilizer(T1),three custom-formulated CRBFs(T2-T4),and conventional fertilization(CK).Comprehensive evaluations of yield components and grain quality parameters were performed,along with correlation analyses of starch viscosity properties.Key findings demonstrated that one-time basal application of custom CRBFs(T2-T4)significantly increased grain yield by 2.53％-8.25％compared to CK,with T3 treatment showing optimal performance.This yield enhancement primarily resulted from synergistic improvements in grains per panicle,seed-setting rate,and 1000-grain weight.Regarding processing and appearance quality,T2 and T3 treatments significantly increased brown rice rate,milled rice rate,and head rice rate,while reducing chalkiness degree and chalky grain rate.For palatability,T1-T3 treatments exhibited lower protein content and amylose content,corresponding to improved taste values.CRBF treatments notably modified RVA profiles,showing higher peak viscosity,hot paste viscosity,and breakdown viscosity,along with lower setback and consistency values.Correlation analysis revealed significant associations between RVA profile characteristics and milled rice rate,chalkiness degree,and amylose content.Economic benefits analysis revealed that T3 treatment achieved 22.30％higher net income than CK,attributable to both yield increase and reduced fertilizer costs.These results demonstrated that optimized CRBF application with reduced nitrogen input(particularly the T3 treatment)in sandy loam rice production systems of northern Jiangsu's ancient Yellow River course,could simultaneously enhance yield,improve grain quality,reduce cost and increase economic returns,demonstrating significant potential for widespread adoption and application.关键词
直播稻/控混肥/产量/稻米品质/经济效益Key words
direct-seeded rice/controlled-release blended fertilizers/yield/rice quality/economic benefits引用本文复制引用
曾洋,李卫红,陈紫岩,庞春霞,吴传万,章安康..控混肥减量基施对直播杂交籼稻稻米产量和品质及效益的影响[J].中国土壤与肥料,2026,(7):93-99,7.基金项目
淮安市农科院基金(HNY202309) （HNY202309）
2024年农业重大技术协同推广计划项目(2024-ZYXT-07) （2024-ZYXT-07）
亚服科技服务项目[KF(24)1217,KF(25)1104]. （24）
