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我省油菜产量较低且不稳,除栽培技术等因素影响外,气象条件也是造成产量波动的一个重要因素。为了摸清我省油菜主栽品种的生长发育与农业气象条件的关系,我们于1980—1981年选用赣油1号、赣油3号、71—18等推广品种进行了农业气象鉴定。采取分期播种法,供试品种自1981年10月31日直播第1期,以后赣油1号、71—18每隔20或30天播1期,至次年4月30日止,各共播5期;赣油3号每隔10或20天播1期,至次年4月30日止,共播10期,另外,自5月25日改为盆栽,每隔20天播1期,至9月1日止,共播5期。试验结果如下:
Rape production in our province is low and unstable, except for cultivation techniques and other factors, the meteorological conditions are also an important factor causing fluctuations in output. In order to find out the relationship between the growth and development of the main cultivars of rape in our province and the agrometeorological conditions, we conducted agrometeorological appraisals in 1980-1981 with the promotion varieties of GanYou 1, GanYou 3 and 71-18. Take staged sowing method, the test varieties live broadcast from October 31, 1981 the first period, after the Ganye 1, 71-18 broadcast every 20 or 30 days until the following year to April 30, a total of Sowing 5; GanYou 3 every 10 or 20 days sowing a period, to April 30 the following year, a total of 10, in addition, since May 25 to potted plants, every 20 days broadcast a period Until September 1, a total of five. The test results are as follows: