Predicting Growth of Eucalyptus globulus under Agroforestry Plantation

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  • M. S. Malik Tamil Nadu Agriculture University, Coimbatore
  • C. Surendran Tamil Nadu Agriculture University, Coimbatore
  • K. Kailasham Tamil Nadu Agriculture University, Coimbatore


Biofertilizer, Eucalyptus globulus, growth model, intercrops, organic fertilizer


A mathematical model has been proposed for predicting the changes in growth of industrial agroforestry plantations under intercropping, weeding and fertilizer practices. The model also enabled the prediction of the growth, growth rate and felling period of Eucalyptus globulus under agroforestry system. The model was applied to growth data of four years pulpwood plantation of E. globulus under agroforestry practices with intercrop of potato, beans, maize and also with silvicultural practices such as weeding and fertilizer treatments in the long term agroforestry experiments conducted in Palani Hills of South India. To estimate single growth model for the entire growth period of eucalyptus the following models such as Gompertz curve, Hill curve, Logistic curve, Richards curve, Polynomial exponential curve, Cubic Polynomial curve and Gauss curve were tried. Among the growth models, Logistic growth model was found suitable for estimation of growth at harvesting period. Eucalyptus with potato intercrop gave higher yield of pulpwood in all the trials. Eucalyptus has maximum growth at fourth year. Eucalyptus grown with compatible intercrops reached its maximum potential of active growth in 6th years.









How to Cite

Predicting Growth of Eucalyptus globulus under Agroforestry Plantation. (2020). Indian Journal of Agroforestry, 7(1).