【摘要】 作者采用叶分析技术对中国东北地区笃斯越桔矿质营养元素年周期变化规律进行了研究。发现笃斯越桔叶片中各矿质营养元素的年周期变化规律具有一定模式,大多数营养元素在7月中旬至8月中旬处于含量变化相对稳定时期。此期为笃斯越枯叶分析的最适采样期。相关分析表明,土壤中营养元素的年周期变化规律与叶片中营养元素的年周期变化规律之间很少存在显著相关关系。更多还原

【Abstract】 The annual variation of mineral nutrient element content in the leaves of Bog bilberry were studied. The results indicated that the variation of most elements in the Bog bilberry leaves was smallest from mid-June to Mid-August. This period was therefore suggested as the most suitable time for collecting leaves for diagnosis of the nutritional status of the plant. Statistical analysis did not show significant correlation between the content of mineral element variation in the Soil and in the leaves.更多还原