论文部分内容阅读
超高茬麦田套稻集全免耕、套播、秸秆自然还田于一体，经江都、姜堰等地及我校和仪征市月塘乡试种研究认为：超高茬麦田套稻成苗率较低；与小麦共生旱长期间叶片及稻苗生长量皆为移栽稻秧苗的１／２，麦收后分蘖启动期一般要１５天左右；通常Ⅰ—Ⅱ低位分蘖缺位，旱生水生杂草较多，易形成草荒；分蘖启动后，生育进程快，全生育期推迟２～３天；后期根系活动强，产量略高于常规移栽稻；每ｈｍ２节省用工４５～６０个，节省秧池田０．０１ｈｍ２，节本３０％左右，增收１８００～２２５０元。研究还认为：超高茬麦田套稻的关键技术在于全苗、匀苗、促早发、杂草防除和特殊的水肥管理。
Ultra-high stubble cropping rice set no-tillage, set-sowing, straw in the natural return to one, by Jiangdu, Jiangyan and other places and our school and Yiteng Yue Tangcun pilot study that: Lower; the growth of leaves and rice seedlings during the symbiotic drought period with wheat are both 1/2 of that of transplanted rice seedlings, and the start-up period of tillers after harvesting is generally about 15 days after wheat harvest. Generally, the low tillers of Ⅰ-Ⅱ are absent, More grass, easy to form grassland; tiller start, fast growth process, the whole growth period postponed 2 to 3 days; late strong root activity, yield slightly higher than conventional transplanting rice; hm2 save 45 to 60 workers, save seedlings Ikeda 0.01hm2, about 30% of the festival, an increase of 1800 ~ 2250 yuan. The study also believes that: the key techniques of ultra-high stubble rice planting in the whole plant, uniform seedlings, promote early hair, weed control and special water and fertilizer management.