Effects of Different Fertilization Treatments on the Growth and SPAD of Container Prunus persica L.
[Objective]To understand the effect of different fertilizers and different fertilization amount on the growth and SPAD of container Prunus persica L.and provide optimal fertilization method for high quality peach plants.[Method]Thirteen different fertilization treatments were designed to study the plant height,ground diameter,crown breadth,branch numbers,the length of current-growth branches and SPAD of con-tainer Prunus persica during different periods.[Result]Compound fertilizer of balanced type was more suitable for plant growth than humate fer-tilizer of phosphorus and potassium type.Combination application of balanced compound fertilizer and low concentration EM bacteria was more beneficial for the growth of container Prunus persica single compound fertilizer.[Conclusion]The optimal treatment for the growth of container Prunus persica was to apply nitrogen,phosphorus and potassium balanced compound fertilizer(20∶20∶20)with 1∶1 000-1∶500 concentration and EM bacteria with 1∶200 concentration during growing period.