Rhizobium Application to Soybean (Glycine Max L. Merril) Growth on the Land Polluted by Fly Ash Waste

Jumin, Hasan Basri and Ulfah, Saripah and Rosmawaty, T. and Sulianto, Ade (2019) Rhizobium Application to Soybean (Glycine Max L. Merril) Growth on the Land Polluted by Fly Ash Waste. EM International, 38 (4). pp. 116-121. ISSN 0257–8050

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Abstract

To day fly ash is pollution material produced by pulp and paper industries. Fly ash with suitable dose promote the vegetative growth and generative component of soybean. Rhizobium promoted net assimilation rate, mean relative growth rate, and seed weight production. Rhizobium on 7.5 g/ kg seed increased net assimilation rate until 0.0462 mg/cm 2/ day and mean relative growth rate until 0.135 g/day and 20.98 g per plant. When combination between Rhizobium and fly ash net assimilation rate increased until 0.553 mg/m2/day and mean relative growth rate until 0.1675 g/day and seed dry weight 22.67 g per plant. Planting soybean with Rhizobium promoted the nitrogen fertilizer efficiency reached 199 percent.

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