现代农业科技Issue(11)：16-18,3.
填充物与用种量对机械化条播油菜群体质量及产量的影响
Effects of Filler and Sowing Rate on the Quality and Yield of Mechanized Drilling Rapeseed Populations
摘要
Abstract
Taking Qingza NO.5 as test material,the effects of different filler and sowing rates on the populations quality and yield were studied. The results showed that the filler affect rate of emergence,population density,growth period,and yield significantly,rate of emergence of the filler urea 120 kg/hm2+diammonium 150 kg/hm2 was lowest,which was 23.96%,and the corresponding rapeseed population density was 28.50í104 plants per hm2,growth period was 127.40 days,yield was 3 008.15 kg/hm2.Rate of emergence of the filler 225 kg/hm2 oilseed stir-fried was highest,which was 43.00%,and the corresponding rapeseed population density was 48.08í104 plants per hm2,growth period was 122.47 days,yield was 2 676.13 kg/hm2.Yield was parabolic form with the increase of sowing rates;yield per plant,total available pods,plant height,and growth period were all decreased with the increase of sowing rates,but branch height got high with the increase of sowing rates.The highest yield of treatments was sowing 4.5 kg/hm2,urea 120 kg/hm2+diammonium 150 kg/hm2 as filler,basic seedling number 28.79í104 plants per hm2,the yield was 3 920.20 kg/hm2;followed sowing 6 kg/hm2,urea 120 kg/hm2+150 kg/hm2 as filler,basic seedling number 38.78í104 plants per hm2,the yield was 3 853.53 kg/hm2.The best program proposed for rapeseed mechanized drilling in northern cold and arid regions,which was 4.5~6.0 kg/hm2 of sowing rate and urea 120 kg/hm2+diammonium 150 kg/hm2 as filler.关键词
油菜/机械化/播量/填充物/质量/产量Key words
rapeseed/mechanized drilling/sowing rate/filler/quality/yield分类
农业科技引用本文复制引用
董云,孙万仓,庞进平,王文昌,郝玉红,王毅,靳丰蔚,徐一涌..填充物与用种量对机械化条播油菜群体质量及产量的影响[J].现代农业科技,2015,(11):16-18,3.基金项目
国家自然科学基金项目（31260334）；甘肃省自然科学基金资助项目（1308RJZA205）；甘肃省农科院创新专项（2013GA AS16）；甘肃省油菜工程技术研究中心项目（1306NTGA022）。 （）
