优质双低杂交油菜宜油21高产栽培模式研究  

High-yielding cultivation pattern of Yiyou 21,a hybrid rapeseed with high-quality,low erucic and low glucosinolate

作　　者：赵远林[1] 林权[1] 刘晓[1] 曾泽彬[1] 张义娟[1] 杭淑莲[1] 

机构地区：[1]宜宾市农业科学院,四川宜宾644000

出　　处：《广东农业科学》2017年第6期8-13,共6页Guangdong Agricultural Sciences

基　　金：四川省"十二五"农作物及畜禽育种攻关项目(2011YZGG005)

摘　　要：以优质双低杂交油菜新品种宜油21为试验材料,通过播种期(X1)、种植密度(X2)和施氮量(X3)进行二次正交旋转组合设计,在育苗移栽方式下,研究各因素对宜油21产量的影响,建立数学模型进行解析和模拟寻优,结果表明:各因素对宜油21产量均有重要影响,其大小为:施氮量>播种期>种植密度,表明在实际生产中宜油21主控措施应是氮肥施用量和播种期;播种期与种植密度间的互作效应最大,并达到显著水平。在充足的水肥条件下,迟播高密度,宜油21产量最高,早播低密度也可获得高产,但迟播低密度,产量最低;在一定的栽培管理措施下,产量达2 860 kg/hm^2以上的最佳播种期、种植密度和施氮量分别为9月25日~29日、92 839~104 399 株/hm2和215.8~242.8 kg/hm^2。A new hybrid rape variety Yiyou 21 with high-quality, low erucic and low glucosimolate was used as experimental material. Through sowing period （ X1 ） , planting density （ χ2 ） and nitrogen rate （ X3 ）, two orthogonal design experiment was carried out. Under the transplanting mode, the factors had significant influences on the yield of Yiyou 21, and the order was nitrogen rate〉 sowing period〉 planting density, indicating that in the actual production of Yiyou 21, we should control nitrogen rate and sowing period. The interaction effect between sowing period and planting density was the highest and reached a significant level. Under the condition of sufficient water and fertilizer, the highest yield of Yiyou 21 was found in late-sowing and high-density, early-sowing and low-density can also get high yield, but the lowest yield was found in late-sowing and low-density. Under certain cultivation management measures, the best sowing period, planting density and nitrogen rate for the yield of Yiyou 21 more than 2 860 kg/hm2 were as follows： September 25th - 29th, 92 839-104 399 plants/hm2 and 215.8-242.8 kg/hm2.

关 键 词：宜油21 育苗移栽 产量 播种期 种植密度 施氮量 

分 类 号：S565.4[农业科学—作物学]