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Singh, B. and Monappa, K. 1968. Effect of Different Depths of Planting and Manuring on the Growth and Survival of Poplars in the Ravine Lands-I. Indian Forester. 94, 9 (Sep. 1968), 675–681. DOI:https://doi.org/10.36808/if/1968/v94i9/25912.