多效唑浓度和秧龄对烟后稻机插质量及产量的影响  

Effect of Different Paclobutrazol Concentration and Sowing Date on Mechanical Transplanting Quality and Yield of Post-tobacco Rice

作　　者：邱英东 QIU Ying-dong(Agricultural and Rural Bureau of Guangze,Guangze,Fujian 354100)

机构地区：[1]福建省光泽县农业农村局,福建光泽354100

出　　处：《福建稻麦科技》2022年第3期31-34,共4页Fujian Science and Technology of Rice and Wheat

摘　　要：为满足烟后稻机械插秧对秧苗的要求,采用双因素随机区组设计,设置多效唑喷施浓度和水稻移栽秧龄2个因素,研究水稻苗期喷施不同多效唑浓度及不同移栽秧龄对烟后稻机插质量和产量的影响。试验结果表明:水稻1叶1心期喷施多效唑可矮化水稻秧苗,使水稻秧苗在超过一定移栽期也能适应机插要求,可为烟后稻移栽提供10 d左右的茬口期,提高水稻产量。喷施多效唑浓度为150 mg/kg、移栽秧龄为25 d时,符合机械插秧对秧苗要求,机插质量较好,有效穗数多,结实率高,产量最高,达到农机与农艺最佳结合、增产增收的目的。To improve seedling quality transplanting by machine of post-tobacco rice,experiment of different paclobutrazol concentration and sowing date were conducted using two-factor randomized block design,the mechanical transplanting quality and yield performance were investigated.Results showed that paclobutrazol application at one leaf stage decreased the seedling height,gained 10 d extra of rice seedling flexibility with mechanized transplanting after tobacco season,and increase grain production.The treatment of 150 mg/kg paclobutrazol concentration and 25 d rice seedling age had good mechanical transplanting quality,more effective panicle,high seed setting rate and yield,and meet the demand of blending agricultural machinery and agricultural technology.

关 键 词：秧龄 秧苗 多效唑 烟后稻 机插 

分 类 号：S511.048[农业科学—作物学]