Effect of Different Ratios of Nitrogen,Phosphorus,and Potassium Fertilizer Application on Seedling Growth of Ceibaspeciosa
In order to improve the quality of Ceiba speciosa seedlings,growth performance of seedlings planted under different NPK ratio treatments was studied by measuring ground diameter,height,width,chlorophyll fluo-rescence parameters and biomass.Results showed that T13(N4P1K4)had the greatest effect on ground diameter with application rate ofN3.0g,P0.6g and K2.0g per plant.In addition,T16 had the prime effect on plant height,chlorophyll fluorescence parameters and biomass with application rate of N3.0g,P2.4g and K0.5g per plant.In conclusion,suitable proportion of NPK fertilizer contributed to the growth of Ceiba speciose seedlings and T16 a-chieved the optimal effect in this study,providing a theoretical basis for scientific fertilization at Ceiba speciosa seedling stage.
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