核桃叶片钾、钙、镁含量及光合速率变化的研究

The contents of the mineral element (K, Ca, Mg) and the photosynthetic rate in the leaves of walnut (including Xinjiang-genian walnut and Fenyang-mian walnut) were measured during the period of growth. The results were as follows: the content of K in leaves reduced with the increasing of the leaves ... View More