水稻干田免耕土壤泡化技术的研究  

A Study on the Soil Soaking-and-Softing Techniques for Rice No-Tillage Cultivation in Dry Paddy Field

作　　者：唐启源[1] 黄见良[1] 邹应斌[1] 龚庆微[2] 欧高才[3] 

机构地区：[1]湖南农业大学植物科学技术学院,湖南长沙410128 [2]湖南省农业科学院植物保护研究所,湖南长沙410125 [3]湖南省植保植检站,湖南长沙410127

出　　处：《湖南农业大学学报（自然科学版）》2002年第2期167-168,共2页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：湖南省科技厅重点项目 (99NKY10 0 4 - 0 7) ;捷利康公司资助项目

摘　　要：为探索水稻干田免耕的土壤泡化技术 ,进行了早稻冬干田和晚稻干田土壤的快速泡化研究 .结果表明 ,采用克无踪快速除草清茬有利于早稻冬干田土壤的快速泡化 ,但对晚稻干田土壤泡化的作用较小 .早稻冬干田宜在 3月 2 0日左右采用克无踪加乙草胺除草后 ,撒施过磷酸钙并泡田 ,经过 18d左右便可插秧 ,或用耙耙松泥浆进行抛秧 ;晚稻干田采用克无踪快速除草清茬后 ,泡田 1～ 2 d即可插秧 。To conduct rice no tillage cultivation in dry paddy field in early rice and in late rice a study on the soil rapidly soaking and softing techniques was in progress in Ninxiang county,Hunan province in 2000. The results show that using of a herbicide paraquat,named Kewuzong,to rapidly kill weeds and rice stubbles has contributed to the soil rapid softing in early rice ,but it is meanless to that in late rice. For winter dry paddy soil ,it is suitable that firstly scatter fertilizer 'single superphosphat'and soft soil 18 days or so by water soaking after spraying herbicides 'paraquat' and 'acetochlor' on about March 20,and then scatter seedlings after raking the soil surface or transplanting directly. For late rice no tillage cultivation in harvested dry field ,using Kewuzong to kill weeds and rice stubbles rapidly is also needed,and the soil soaking time can be shorted to 1～2 days before transplanting or 3～5 days before scattering seedlings.

关 键 词：水稻土 免耕 土壤泡化技术 快速清茬免耕栽培技术 

分 类 号：S511.061[农业科学—作物学]