安徽农业科学2024，Vol.52Issue(12)：139-143,5.DOI:10.3969/j.issn.0517-6611.2024.12.030
不同生物有机肥对镉污染农田中水稻产量和土壤肥力的影响
Effects of Different Bio-organic Fertilizers on Rice Yield and Soil Fertility in Cadmium-contaminated Farmland
摘要
Abstract
[Objective]To explore the remediation effect of bio-organic fertilizer on cadmium-contaminated farmland and ensure the safe pro-duction of rice.[Method]Cattle manure bio-organic fertilizer,biochar-based bio-organic fertilizer,soybean bio-organic fertilizer and seaweed bio-organic fertilizer were selected to carry out a two-year field experiment in paddy fields with mild cadmium pollution.Soil physical and chemical properties,soil available Cd,rice growth and yield,and brown rice Cd content were determined.[Result]The field test results showed that the application of bio-organic fertilizer increased soil pH by an average of 0.32,alkali-hydrolyzed nitrogen,available phosphorus,available potassium and organic matter were increased by an average of 9.38%,15.69%,10.62%and 11.64%,respectively.The plant height,panicle length,root length,panicle weight,1000-grain weight and yield of rice were increased by 5.86%,3.83%,16.54%,16.91%,7.14%and 3.65%,respectively.The available Cd content in soil decreased significantly by 0.10 mg/kg,a decrease of 39.12%,and the Cd content in brown rice decreased significantly by 45.36%.[Conclusion]Bio-organic fertilizer has a significant effect on reducing Cd bioavail-ability in soil and Cd content in rice grains,and can promote rice growth and improve soil fertility.Among them,carbon-based bio-organic fer-tilizer has the best effect,which can be used as a technical measure to ensure the safe production of rice in the future.关键词
镉污染/土壤肥力/重金属/生物有机肥/微生物修复Key words
Cadmium pollution/Soil fertility/Heavy metals/Bio-organic fertilizer/Microbial remediation分类
农业科技引用本文复制引用
何家众,陈福明,叶正钱,柳丹,宋肖琴..不同生物有机肥对镉污染农田中水稻产量和土壤肥力的影响[J].安徽农业科学,2024,52(12):139-143,5.基金项目
义乌市省级水稻安全利用技术试验及推广项目(SJZJZC20-22240GK). （SJZJZC20-22240GK）
