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.

XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposium on Nut Crops

W.G. Fan, J.P. Chen, H.Q. Yang

manganese, Chinese chestnut, photosynthesis, nutrition, fall manuring

https://doi.org/10.17660/ActaHortic.2016.1109.13