Abstract:

The way to provide for the Prunus×Cistena phosphorus and potassium nutrition of the foliage top dressing,For study the way of Blade microstructure of Prunus×Cistena in Different concentrations of P and K;Test conditions in the field,3 year old Prunus×Cistena as materials, P set 0.5%, 1.0%, 1.5% 3 concentration, K set 0.4%, 0.8%, 1.2% 3 concentration,Water as control,Repeat 3 times.The results showed that:After Foliar P and K, Leaf of Prunus×Cistena blade performance is the most intuitive smaller cell gap,Cell color deepened, Cells were arranged more neatly;With the increase of the concentration phosphate fertilizer spraying,Palisade tissue thickness decreased，P3 treatment lower than the control 8.8μm,After spraying fertilizer showed the opposite results,K3 processing than the control 12.0μm,That the impact of K on the palisade tissue than P;The thickness of spongy tissue and leaves showed decreased gradually with the concentration changes.Analysis that, exogenous P and K with Prunus×Cistena leaf on the microstructure has a significant impact.