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研究在自然降雨量情况下,以年株施磷0克,2克,4克和6克四个水平。结果表明,磷对‘邱’(Kew)菠萝蘖芽苗的影响明显大于正根苗。蘖芽苗施磷显著地增大了果个及单产。磷降低了三造果实的可溶性固形物、酸和总糖含量,但却显著地增加了果实维生素C含量。显著地增加了叶片N和P的含量,同时降低了叶片K,Ca和Mg的含量。回归分析表明,蘖芽苗对磷的需要量比正根苗要少,同时,其叶片P浓度也较正根苗低。
In the case of natural rainfall, the annual plant Phosphorus 0 grams, 2 grams, 4 grams and 6 grams of four levels. The results showed that the effect of phosphorus on the seedling growth of ’Kew’ pineapple was obviously greater than that of ’Zhenggenmiao’. Fertilizer tillering sprouts significantly increased fruit and yield. Phosphorus reduced the soluble solids, acids and total sugar content of three fruits, but significantly increased the vitamin C content of fruit. Significantly increased the content of N and P in leaves, and reduced the contents of K, Ca and Mg in leaves at the same time. Regression analysis showed that the amount of phosphorus needed by the tiller buds was less than that of the root sprouts, and the leaf P concentration was also lower than that of the root sprouts.