北疆麦后复播饲料油菜的播种量对其生长性状的影响  

Effect of Planting Density on Growth Properties of Rapeseed in Wheat/Silage Rape Multiple Cropping in Northern Xinjiang

作　　者：段震宇[1] 祁亚琴[2] 邵玉林 桑志勤[1] 王友德[1] 王秀琴 冯波 

机构地区：[1]新疆农垦科学院作物研究所/谷物品质与遗传改良兵团重点实验室,新疆石河子832000 [2]石河子大学,新疆石河子832002 [3]石河子国家农业科技园区,新疆石河子832000

出　　处：《西南农业学报》2016年第3期516-519,共4页Southwest China Journal of Agricultural Sciences

基　　金：新疆第八师科技攻关项目“北疆复播饲料油菜品种筛选及高产高效关键栽培技术研究与示范”(2014NY18)

摘　　要：本文探讨了新疆北疆地区麦茬后种植不同播种量的饲料油菜对其生长性状的影响,为饲料油菜在北疆地区麦后复播合理种植提供理论依据。试验以华油杂62为试验材料,采用田间随机区组试验设计,4次重复,共4个播量处理,其中1个重复作为取样区,播种量处理分别设为7.5、11.25、15、22.5 kg/hm24个水平。研究在麦后复播条件下,不同播种量的饲料油菜株高、鲜重、干重的动态变化规律。结果表明,麦后复播饲料油菜地上生物产量的积累规律为苗期缓慢,蕾苔期最快,开花后减缓,基本符合"S"型生长曲线。高密度播种量能极显著提高复播饲料油菜地上部干重、鲜重及其日生长量,以播量15 kg/hm2处理为最优。In this paper, the effects of different sowing quantity on the growth trait characteristics of silage rape in northern of Xinjiang were probed, which would provide a scientific theoretical basis and a technical guidance for the multiple cropping silage rape. Taken huayouza62 as tested material, the field randomized block experiments were designed, repeated 4 times, with a total of 4 sowing quantity treatments, of which 1 of the repeated was as the sampling area, and sowing quantity treatments were set to 7.5, 11.25, 15,22.5 kg,/hm^2 levels. The dynamic variation of plant height, fresh weight, dry weight in different sowing quantity of silage rape were studied. The results showed that biological yield accumulation law of silage rape was basically in accordance with the ＇ S＇ type growth curve which was slow at seedling stage, the fastest at budding stage and slow after blossom. The high density planting volume could significantly increase the multiple cropping rape upper feed dry weight, fresh weight and day growth, and the amount of 15 kg/hm^2 processing was the best.

关 键 词：饲料油菜 种植密度 麦后复播 生长性状 

分 类 号：S565.4[农业科学—作物学]