Effect of MnSO4 soil applications on photosynthetic performance and nutrient content of young chestnut trees
The effect of autumn soil MnSO4 applications on photosynthetic performance, relative chlorophyll content and nutritional content of young 'Shi-men-zao-shuo' chestnut trees was studied. A 0.4-1.6 g·(plant)-1 MnSO4 clearly increased the Chl content, Pn, Tr and Gs. The leaf, branch, stem and root N, P, Mg and Mn increased from 0 to 1.6 g. The leaf Pn, Gs and P content were significantly less than that of control 3.2 g (plant)-1 MnSO4 soil application. However, Pn increased sharply in spring of the following year. The Ca and Fe content decreased as soil Mn2+ content increased. Soil Mn content also affected on the N, Mg and Mn distribution among the leaf, branch, stem and root of the young chestnut tree. The results demonstrate autumn soil applications of MnSO4 affected the photosynthetic characteristics and absorption and utilization of mineral nutrients in young Chinese chestnut trees. A 0.4-1.6 g (plant)-1 MnSO4 soil application clearly promoted the photosynthetic capacity of young chestnut trees.
Fan, W.G., Chen, J.P. and Yang, H.Q. (2016). Effect of MnSO4 soil applications on photosynthetic performance and nutrient content of young chestnut trees. Acta Hortic. 1109, 83-88
manganese, Chinese chestnut, photosynthesis, nutrition, fall manuring