Annual change of various elements was different, indicating that the demand amount of elements and the element proportions for Citrus grandis at different developmental stages were different.
各元素的年周期变化规律不同，说明沙田柚在不同的生育时期对各元素的需求量及它们之间的需求比例有不同要求。
Annual change of various elements was different, indicating that the demand amount of elements and the element proportions for Citrus grandis at different developmental stages were different.
各元素的年周期变化规律不同，说明沙田柚在不同的生育时期对各元素的需求量及它们之间的需求比例有不同要求。
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