稻鸭共生对稻田土壤、水体养分及水稻二化螟、产量的影响  

Effects of Rice-duck Symbiosis on Paddy Soil,Water Nutrients,Rice Borers and Yield

作　　者：张从宇[1] 任兰天[1] 李文阳[1] ZHANG Congyu;REN Lantian;LI Wenyang(Anhui Science and Technolegy University,Fengyang 233100,China)

机构地区：[1]安徽科技学院,安徽凤阳233100

出　　处：《安徽科技学院学报》2022年第5期15-19,共5页Journal of Anhui Science and Technology University

基　　金：安徽省重点研究与开发计划项目(202204c06020069);安徽小岗国家农业科技园项目(yq202203)。

摘　　要：目的:探讨稻鸭共生对稻田土壤、水体养分及水稻二化螟、产量的影响。方法:设置稻鸭共生区和无鸭稻田人工拔草区,比较稻田土壤和水体养分,以及水稻二化螟发生率、分蘖率、产量形成因素和产量等,对差异进行显著性分析。结果:与无鸭区比,稻鸭共生区土壤的有机质、总氮、碱解氮、总磷、有效磷、速效钾含量各时段均较高,有机质8月20日-10月4日、总氮9月4日、碱解氮8月20日-10月4日、总磷8月5日、有效磷10月4日、速效钾9月19日-10月4日差异显著;水体的总氮、铵态氮、总磷、有效磷、速效钾各时段均较高,总氮、铵态氮、速效钾7月21日-10月4日差异显著,总磷7月21日-9月19日差异显著,有效磷8月5日-9月4日差异显著;分蘖数全时段均较高,二化螟发生率全时段均较低,差异均显著;有效穗数、穗粒数、理论产量、实际产量均较高,差异显著。结论:稻鸭共生增加稻田土壤与水体养分,减少稻螟虫危害,提高产量。Objective:To study the effects of rice-duck symbiosis on soil,water nutrients,rice borer and yield in paddy field.Methods:The rice-duck symbiosis area and the no-duck rice field were set up to compare the soil and water nutrients,the incidence of rice stem borers,the tillering rate,the yield formation factors and the yield of rice.Results:Compared with the non-duck area,rice duck symbiotic area of soil organic matter,total nitrogen,alkali solution nitrogen,total phosphorus,effective phosphorus,rapidly-available potassium content were higher.The total nitrogen from August 20 to October 4,total nitrogen on September 4,alkali solution nitrogen from August 20 to October 4,total phosphorus on August 5,effective phosphorus on October 4,rapidly-available potassium from September 19 to October 4,were significant difference.The total nitrogen,ammonium nitrogen,total phosphorus,available phosphorus and available potassium of water were higher in each time period.The total nitrogen,ammonium nitrogen and available potassium were significantly different from July 21 to October 4,the total phosphorus were significantly different from July 21 to September 19,and the available phosphorus were significantly different from August 5 to September 4.The number of tillers was higher in the whole period,and the incidence of rice borers was lower in the whole period,and the differences were significant.The effective number of ears,number of grains per ear,theoretical yield and actual yield were higher,and the differences were significant.Conclusion:Rice-duck symbiosis could increase soil and water nutrients in paddy field,reduce the harm of rice borers and increase the yield.

关 键 词：稻鸭共生 土壤 水体 养分 产量 

分 类 号：S435[农业科学—农业昆虫与害虫防治]