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引种南方果树菠萝、芒果、龙眼、荔枝等至山东郯城,通过实施保护地栽培,获得成功。菠萝1a定植,2a结果并丰产,667m2产量达到4061kg;芒果3a见果,5a丰产,667m2产量达到1506 5kg;龙眼2a见果,3a丰产,667m2产量达到172 9kg。菠萝营养成分(Ca,Fe,Mg,Vc、蛋白质、核黄素等)明显高于南方,纤维素、有机酸则低于南方。喷施植物激素对果实发育作用明显。引种树生长发育的极限低温为5℃,最适温度、湿度分别为25～30℃、75%～85%。
The introduction of the southern fruit pineapple, mango, longan, litchi until Shandong Tancheng, through the implementation of conservation cultivation, success. Pineapple 1a colonization, 2a results and high yield, 667m2 yield reached 4061kg; mango 3a see fruit, 5a high yield, 667m2 yield reached 1506 5kg; longan 2a see fruit, 3a high yield, 667m2 production reached 172 9kg. Pineapple nutrition composition (Ca, Fe, Mg, Vc, protein, riboflavin, etc.) was significantly higher than the South, cellulose, organic acid is lower than the South. Spraying plant hormones on fruit development significantly. The minimum temperature for the growth and development of the introduced tree is 5 ℃, the optimum temperature and humidity are 25 ~ 30 ℃, 75% ~ 85% respectively.