Birsa Agricultural University, Ranchi

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Biomass Production in Acacia Auriculiforms (A.Cunn.Ex.Benth) Under Different Spacings
(Birsa Agricultural University, Ranchi, 1995) Anil Kumar; Dr.M.H.Siddiqui
A field study entitled "Biomass production in Acacia auriculiformis (A. Cunn. different spacings" was started ex. Benth), under at Rarha Research Station of faculty of forestry, Kanke, Ranchi. Various parameters were recorded after 9 year. Conducted in a Ra The study was omised Block Design with three spacing treatments (Viz. 1.0m x 1.0m, 1.5m x 1.5m and 2.0m x 2.0m) and with seven replications. The results revealed a remarkable improvement in soil properties such as organic carbon, available N, P, and K. Soil pH declined as compared to initial value taken at the start of the plantation. A significant decrease in survival percent was observed at close spacing. Diameter has been affected due to spacing treatment. The maximum mean diameter of 11.06cm was found at wide spacing (i.e. 2.0m x 2.0m). Similarly, the maximum mean height was recorded at 2.0m x 2.0m spacing. A significant effect of spacing has been observed in case of Bole, Branch, Leaf+Twig and Root biomass. Bole biomass decreases as spacing increases. The maximum bole biomass (92.84 t ha-¹) was obtained at close spacing. Similar trend of increase in other