The optimum ratio is the ratio of the potted plants sawdust, plaster equal to 5:95 for the use of sawdust as an ingredient. The density and bending strength is highest. Compared to other ratios The sawdust is mixed
The optimum ratio of flower pots is mixture of sawdust to plaster of 5: 95 because using sawdust as ingredients. The density and resistance to bending is high. Compared with other ratios are mixed with sawdust.