水稻早育稀植是国家重点推广项目。承德市农业科技人员在该项技术推广中抓了三条:一是选用繁茂多穗型的秋光、青系96、79—1—2,79—3等中早熟品种;二是采用开闭式旱育秧,足磷,均匀施肥,每平米150—175克芽籽稀播,秧床适温管理等措施.培育壮秧;三是针对水肥情况分别采用稀植9×4寸或9×6寸、 Early rice breeding sparse plant is a national key promotion project. Chengde City, agricultural science and technology personnel in the technology promotion caught three: First, the use of luxuriant panicles of autumn light, green lines 96,79-1-2,79-3 other varieties of early maturity; the second is the use of open-closed drought Seedling bed temperature management and other measures to cultivate strong seedling; the third is the use of water and fertilizer were sparsely planted 9 × 4-inch or 9 × 6-inch, respectively,