Method for measuring utilization rate of forest wood phosphate fertilizers

The invention provides a method for measuring the utilization rate of forest wood phosphate fertilizers. According to the method, nylon net bags are selected, phosphate fertilizers or mixtures of the phosphate fertilizers and other fertilizers are charged into the nylon net bags, after the net bags are buried into proper soil layers of forest land soil for a certain time, the residual fertilizers in the nylon net bags and the soil with a proper distance from positions above, below and around the nylon bags are collected, and soil phosphorus analysis is carried out; the residual quantity of the phosphate fertilizers is calculated according to the sum of the residual quantity of the phosphate fertilizers in the nylon net bag and the residual quantity of the phosphate fertilizers in the soil, and in addition, the utilization rate of the phosphate fertilizers is calculated according to a formula. The method can be used for studying the utilization rate of the phosphate fertilizers of the perennial forest wood, and has higher practical values on forest wood nutrition diagnosis and reasonable phosphate fertilizer application to forest land.