Effect of Interaction of Phosphorus and Magnesium on Sugarcane Growth
Under a pot-sand-culture test with varieties including ROC22 and TSC00-236, this study probes into the growth of sugarcane in terms of interaction of phosphorus and magnesium. It showed from the experiment that: phosphorus promotes significantly the accumulation of growth and biomass of two genotypes of sugarcane, while certain amount of magnesium facilitates the sugarcane accumulation growth and biomass. However, differences still exist between the two species. Root-shoot ratios of both the two varieties show a decreasing trend with the growth of phosphorus. Magnesium can increase plant's root-shoot ratio, but too much of it inhibits sugarcane's root growth. In the interaction of phosphorus and Magnesium, phosphorus is the main effect while magnesium is an aftereffect. In other words, the effect of phosphorus on the growth of sugarcane is more obvious than that of magnesium. Appropriate fertilization of magnesium helps increase output of sugarcane.
SugarcaneInteraction of phosphorus and magnesiumGrowth effect