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对优质油菜品种史力丰进行播期试验、密度和施氮量二因素试验表明 :( 1)在江苏泰州市沿江地区的适宜播期为 9月 10～ 15日 ,里下河地区为 9月 15～ 2 0日 ;( 2 )随移栽密度和施氮量增加 ,史力丰产量先增后减 ,以施用纯氮 2 70kg/hm2 、移栽 15× 10 4 株 /hm2 组合产量最高 ,达 2 6 0 9.7kg/hm2 ;( 3)单位面积有效角果和每角粒数随播期的提前、密度的增加而增加 ,随施氮量的增加先增后减 ;( 4)密度、施氮量对芥酸、硫甙和油分含量等品质指标具有调节作用。
The sowing date of high quality rapeseed cultivar ShiLifeng was tested. The two factors of density and nitrogen application rate showed that: (1) The suitable sowing date in the coastal area of Taizhou in Jiangsu Province was from September 10 to 15, that in the Lixiahe area was September 15 ~ (2) With the increase of transplanting density and nitrogen application rate, the yield of Shilaifeng firstly increased and then decreased, the highest yield of 260 × 10 4 plants / hm2 transplanting was achieved with 2 70 kg / hm2 of pure nitrogen and 260% 9.7kg / hm2; (3) The effective fruit per square and the number of grains per corner increased with the advance and density of sowing date, and then increased with the increase of nitrogen rate; (4) Erucic acid, glucosinolate and oil content and other quality indicators have a regulatory role.