【摘要】 本文根据冬种玉米试验资料，运用数理统计方法，分析了从化市冬种玉米种植的若干气候适应性问题，找出了影响冬种玉米生长发育及产量形成的关键期和主要气象因子．以此为依据，从气候上对本省冬种玉米种植进行分区．更多还原

【Abstract】 In Guangdong, the major unfavourable factor for planting corn in winter is the climatic condition. The 1989-1992 statistical data about the climatic adaptability of the winter corn showed that the corn is sensative to low temperature during the period from differentiation of ear to tasseling while the sunshine hours from filling to mature period are very important to the output of the winter corn. In mis paper the accumulated temperature of ≥ 0℃ during winter,the average monthly minimun temperature of December, and the number of the days with weather of number of low temperature and rain in spring are chosen as the demarcation indexes for winter corn planting regionalization in Guangdong. Suitable, sub-suitable and unsuitable zones are delimitated with fuzzy mathematics method.更多还原