浙大619是浙江大学农业与生物技术学院育成的优质高产高抗油菜新品种,2009年通过浙江省品种审定(浙审油2009002).试验结果表明:播期对直播油菜的生物学特性以及产量影响较大,早播有利于提高油菜的产量,迟播有利于降低油菜植株高度,在浙江杭州地区,直播油菜的最适播期为10月15～25日,最迟不宜超过10月底,生产上宜掌握“早播适当稀植,迟播适当密植”；氮肥用量增加有利于提高油菜的产量,但考虑到低碳、生态以及该品种的耐肥抗倒性等问题,生产上提倡适当增施,不宜过多,建议每公顷施尿素450 kg以内为宜.%Zheda 619 is a high - quality, high - yielding and high - resistant rapeseed variety. It was bred by College of Agriculture and Biotechnology, Zhejiang University, and was registered in Zhejiang province in 2009 ( Zheshenyou 2009002 ). The experimental results revealed that the biological characteristics and yield of directly - sown rapeseed Zheda 619 were affected remarkably by sowing date. Early sowing was good for improving its yield, and late sowing was beneficial to reducing its plant height, in Hangzhou region , the most suitable direct sowing date of Zheda 619 was during 15 ～ 25 October, and the latest one should be not later than the end of October. In the production of Zheda 619, low population was needed when it was sown early, while high population was required when it was sown late. Increasing the nitrogen application rate could increase the yield of Zheda 619. However, taking low carbon, ecological balance, and the nitrogen - tolerance and lodging resistance of this variety into account, the nitrogen fertilizer increment should be appropriate, not too much, and the recommended application rate of urea was 450 kg per hectare in the production of Zheda 619.
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