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菠萝原产热带美洲,是短日照植物,具有喜温、畏寒、怕霜冻的特性。因此,对气候条件的要求,首先必须基本无霜。但菠萝在南亚热带地区栽培,每年不同程度遭受寒害.据大南坂农场观察,当气温降到5～8℃时,连续数天偏北风,菠萝就会受寒害,其叶色变紫红,叶尖干焦。尤其是不耐霜冻,轻则冻伤,重则死苗。漳浦县1985年冬菠萝受寒害较为严重,叶面冻伤达65％以上,对菠萝生产危害极大。因此,防寒栽培和管理措施,是夺取菠萝高产稳产的重要保证。其栽培经验是:
Pineapple native tropical Americas, is a short-day plant, with a warm temperature, chills, frost-resistant characteristics. Therefore, the requirements of climatic conditions must first be essentially frost-free. However, the pineapple is cultivated in the southern subtropical region and suffering from chilling damage to varying degrees every year.According to the observation of Da Namzhan Farm, when the temperature drops to 5 to 8 ° C, the pineapple will be harmed for several days with a northerly wind, and its leaf color becomes purple and leaves Sharp dry coke. In particular, intolerant frost, ranging from frostbite, heavy dead seedlings. Pineapple in winter in 1985 in Zhangpu County suffered more serious chilling injury and more than 65% frostbite on the leaf surface, which greatly jeopardized pineapple production. Therefore, cold cultivation and management measures, is to win the high yield of pineapple an important guarantee. Its cultivation experience is: