浙双72是浙江省农科院选育的优质双低油菜新品系。我市1998年引入试种,1999年种植面积迅速扩大,2000年冬种计划在全市大面积推广。为进一步完善浙双72高产栽培技术,明确最佳施氮水平,以便为生产应用提供科学依据,我们进行了浙双72的氮肥用量试验。现将试验方法和结果简述如下。 Zhejiang double 72 is a new line of high quality double low rapeseed selected by Zhejiang Academy of Agricultural Sciences. In 1998, our city introduced the trial planting. In 1999, the planting area expanded rapidly. The plan of 2000 winter planting was popularized in the whole city. In order to further improve the high yielding cultivation techniques of Zhejiang Shuang 72 and to determine the optimum nitrogen application level so as to provide a scientific basis for production and application, we conducted the nitrogen application rate experiment of Zhe-72. The test methods and results are summarized below.