水稻受旱迟栽的栽培技术对策

Cultural Technological Countermeasure of Late transplanted Rice Suffering From Spring and Summer Droughts

在四川盆地的春、夏旱常发区，秧苗受旱后不能及时移栽，严重影响水稻生产。通过模拟和实际受旱两种条件，研究了迟栽对秧苗及其本田生长发育的影响，提出了利用旱地培育长龄大苗秧的栽培技术对策，可显著增强秧龄弹性，早插增产，迟栽亦能获得较高产量，减轻灾害损失，变被动受旱减产为主动抗旱减灾增产。

In the spring and summer droughts regions of Sichuan Basin,rice seedling cannot be timely transplanted due to suffering from droughts It severely affected rice production The effect of late transplanting on growth and development of seedling was studied by simulated and actual droughts:Elder seedling nursed in upland nursery can increase the elasticity of seedling age significantly,increase grain yield if early transplanted,as well as obtain higher yield under late transplanting condition This technological countermeasure may regain the initiative from passively reduction yield with droughts