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Effect of inorganic fertilizers and growth performance in Poplar tree - Populus deltoides, Tamilnadu, India

Author Affiliations

  • 1Department of Forest Bamboo Estate Division, Gobichettipalayam, Erode, Tamilnadu, India
  • 2Department of Forestry, Karupa foundation, Mettupalayam, Coimbatore, Tamilnadu, India

Res. J. Agriculture & Forestry Sci., Volume 5, Issue (9), Pages 13-17, September,8 (2017)


Nutrient management is one of the prime factors which play a pivotal role on the growth, development and successful completion of life cycle in all green plants. It is very essential to establish alternate and fast growing tree species to meet the raw material demand of various wood based industries. Poplar occupies an important place amongst fast growing species due to their multiple uses as an industrial raw material in pulp and paper. In this study, three levels of nitrogen (50, 75 and 100 g N plant-1), three levels of phosphorus (75, 100 and 125 g P plant-1) and three levels of potassium (50, 75 and 100 g K plant-1) were applied to standardize the fertilizers schedule for the Populus deltoides tree species. Randomized block design with three replications and twenty eight (including control T28) different treatment levels of NPK were used as experimental design. Growth components viz., plant height, collar diameter, volume index, leaf area, leaf area index and total biomass were observed and recorded. The performances of growth were influenced by N, P and K at different levels. From the study, it is revealed that among N, P and K levels, the application of 75:125:75 g NPK plant-1 (T17) influenced significantly the growth performance of poplar followed by 100: 125:75 g NPK plant-1 (T26). The total biomass was also altered by different levels of N, P and K and it was significantly influenced due to application of 75:125:75 g NPK plant-1(T17). These treatments are standardized and applied for Poplar species to enhance the growth for alternative pulp and paper species.


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