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菠萝是热带著名水果之一。原产南美巴西热带,性喜高温,要求年平均气温在20℃以上,怕霜冻。我省一些热区,年平均气温不足20℃,每年12月至次年2月有轻霜。在这样的气候条件下,每到冬春菠萝往往叶片变枯,生长与结果都受到严重影响。潞西芒市等地就有:“菠萝只能收三季,以后就死去”的说法。为了解决这个问题,芒市芒别乡芒别寨的傣族群众,在长期的生产实践中,总结了一套在菠萝地中间种思茅松以防冻的办法。这种办法能
Pineapple is one of the tropical fruits. Native South America Brazil tropical, high temperature sex, requiring an average annual temperature above 20 ℃, afraid of frost. Some hot areas in our province, the annual average temperature of less than 20 ℃, every December to February next year have a light cream. Under such climatic conditions, the pineapple tends to turn withered and its growth and results are severely affected by winter and spring. Luxi Mangshi and other places have: “Pineapple can only receive three seasons, after the death of” argument. In order to solve this problem, the Dai people in Mount Beidai, Mangshan Township, in Mangshan City, summed up a set of measures to prevent freezing in the middle of Pineapple in the long-term production practice. This method can