金优2155在桂中北的种植表现及高产栽培技术

Performance of Jinyou 2155 and its high yielding cultivation techniques in North Guangxi

金优2155是福建省三明市农科所以金23A与明恢2155配组育成的三系杂交稻新组合。2002年引入桂中北稻作区多点试种．表现出生育期适中、穗大粒多、高产稳产、米质优、抗性强、适应性广等特点，大面积种植每公顷产量在7500-9000kg，2004年2月通过广西农作物品种审定委员会审定。栽培技术：早稻以3月中旬、晚稻以6月底～7月上旬为宜；播种前抓好种子消毒，加强秧苗水肥管理，培育壮秧；适时移栽，每公顷抛秧27．0～28．5万株、手插秧以30万蔸为宜；移栽前重施基肥，插后4～7d结合除草合理追肥；科学用水；注意防治稻瘟病、白叶枯病、褐稻虱、三化螟等病虫害。

Jinyou 2155 is a new three-llne hybrid combination bred with Jin 23A and Minghui 2155 by Sanming Research Institute of Agricultural Sciences of Fujian province. It was characterized suitable growth duration, large panicle and more grains per panicle, high and stable yield, good grain quality, strong resistance to pests and wide adaptability, etc. The average yield in large scale was 7,500-9,000kg/hm^2, and it was certified by Guangxi Committee for Crop Variety Registration in 2004. The cultivation techniques of Jinyou 2155 were as fellows： for early rice it was timely sowed in mid-March and for late rice from late June to early July; seeds should be sterilized before sowing, water and fertilizer management of seedlings should be strengthened to raising vigorous seedlings ; the seedling should be timely transplanted, and the planting density for seedling-broadcast was 270-285 thousand/hm^2 and for hand transplanting was 300 thousand/hm^2. Heavy basic fertilizer was applied before transplanting, and reasonable fertilizing should be applied with weeding; reasonable applying water should be done. In addition, the disease and insect pests such as rice blast, rice bacterial leaf blight, brown planthopper and Tryporyza incertulas, etc. should be controlled.