【摘要】 试验结果表明，适量施用稀土可提高沙田柚树体对营养元素的吸收，促进养分平衡，从而可提高沙田柚座果率和产量，而且对柚果还有增糖降酸的效果。因此，适时适量施用稀土对提高沙田柚产量和品质均有积极的意义。更多还原

【Abstract】 The results of experiment showed that the nutrient uptake by Citrus grandis and the nutrient balance in the trees were improved by suitable application rate of rare earth. In consequence, the rate of fruit setting and the yield of Citrus grandis were increased. Moreover, sugar in the tree body was also increased and the acidity was decreased. Therefore, the rare earth is significant for raising yield and improving quality of Citrus grandis when it is used at suitable time and at suitable application rate.更多还原