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受“厄尔尼诺”和“拉尼娜”现象的影响,预计1999年春季气候将更为反常。此时油菜已进入营养生长和生殖生长最旺盛的时期,应更加精心做好田间管理工作。
Affected by the phenomena of El Niño and La Niña, the spring 1999 season is expected to be even more anomalous. At this point rape has entered the vegetative and reproductive growth of the most vigorous period, should be more careful field management.