湖南省稻—稻—油绿色高效生产技术

“稻—稻—油”模式对保障我国粮油安全意义重大,是湖南的主攻方向。本文从早稻种植、晚稻种植、油菜种植3个生产阶段总结“稻—稻—油”生态高效生产技术,包括品种选择、机械化种植、田间管理、病虫草害防治等,并分析其经济效益,以期为湖南“稻—稻—油”模式的推广和发展提供支撑。

衡阳县三熟制区域早熟油菜品种比较试验

为筛选适合衡阳县"稻—稻—油"三熟制种植的早熟高产优质油菜品种,在10月下旬晚播条件下,对湘油420、湘杂油415等7个双低油菜品种进行田间比较试验。结果表明:从生育期来看,宝油12、丰油730能在5月1日前收获,湘油415、湘油420、湘油104能在4月28日前成熟收割,基本不影响当地早稻的抛栽;从抗性来看,J520、T5533的抗病性优于对照丰油730,抗倒性强;从产量来看,J520、T5533、湘油420的产量均显著高于CK。综合来看,湘油420表现为极早熟,抗倒性和抗菌核病强,产量高,适合在衡阳县作为"稻—稻—油"三熟栽油菜品种推广种植。

Screening of Ratooning Rice Varieties Suitable for Ratooning Rice-Rape Cropping Planting Pattern in Ganfu Plain

[Objective] To screen ratooning rice varieties for the ratooning rice-rape cropping planting pattern in Ganfu Plain. [Method] The growth period, plant morphology, yield and its component of 11 varieties at the first and rebirth season were compared and analyzed. [Result] The ratooning rice varieties such as Heliangyou -1, Y Liangyou 6, Zhunliangyou 608 and Jingliangyouhuazhan were suitable for the production and application in Ganfu Plain. Heliangyou 1 and Zhunliangyou 608 showed the characteristics of early maturity, easy to achieve high yield and stable production. [Conclusion] It suggests that Heliangyou 1 and Zhunliangyou 608 should be selected as preferred varieties for the planting pattern of ratooning rice-rape cropping.