并根据叶片营养含量的测定，研究了叶片颜色特征与叶片养分含量之间的关系。
The relationship between the leaves and the nutrient content was investigated by analyzing the color properties of leaves' images and the leaf nutrition content.
这与SC27促进土壤养分有效化，提高植株叶片中氮、蛋白质、糖和淀粉含量有关。
SC27 could improve available nutrient contents in soil and increase the contents of nitrogen, protein, sugar and starch in leaves of watermelon and balsam pear plants.
干旱胁迫下烤烟干物质积累与烟株和叶片中的养分含量密切相关。
There was close relationship between dry matter accumulation and the content of nutrients in the plant and the leaf tissue under drought stress.
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