Abstract: Compared with Fengliangyouxiang No.1,the water-saving and drought resistant rice Hanyou 73 was cultivated as ratoon rice,and the difference of yield and economic benefit under dry and water pipe conditions was compared.The results showed that the yield of Hanyou 73 in the first season was significantly higher than that of Fengliangyouxiang No.1 in the dry management condition,while the yield in the regeneration season was significantly lower than that of Fengliangyouxiang No.1,and the total yield was the same,consistent with the conclusion under water pipe condition.In terms of economic benefits,Hanyou 73 was slightly lower than Fengliangyouxiang No.1 under dry management condition,and water pipe condition.There is no significant difference between the two.In conclusion,Hanyou 73 can be used as ratoon rice variety in Jianghan Plain,especially in arid climate.

Key words: Hanyou 73, Fengliangyouxiang No.1, the water-saving and drought-resistant rice, dry management, ratooning rice