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Subject: Forest Watershed Management × End date: 2017 × Start date: 2012 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Studies on Effect of Integrated Nutrient Management on Early Establishent of Casuarina equlsetifolia Plantation in Sharwati Watershed Area
    (UAS, Dharwad, 2013) Parashuram Navi; G.V. Dasar
    Nutrients are basic resources for the growth and productivity of trees. Application of organic manures and inorganic fertilizers helps for growth and productivity of trees. A field trial was conducted to investigate the effect of integrated nutrient management on early establishment of Casuarina equisetifolia plantation in Sharawati watershed area of Uttar Kannada district during 2011–2012. The plantation of one year old Casuarina equisetifolia was selected and experiment was planned with split plot design. The organic manure were imposed as a main plot treatments viz., Bio fertilizer culture (VAM-7.5 kg/ha), Farm yard manure @ 5 tonnes/ha, Vermicompost @ 2.5 tonnes/ha and Control. Application of inorganic fertilizers viz., 100: 50: 100 N, P2O5, K2O in kg/ha, 150: 75: 150 N, P2O5, K2O in kg/ha, 200: 100: 200 N, P2O5, K2O in Kg/ha and Control as a subplot treatments. The plant growth parameters viz., Plant height,Collar diameter, Crown diameter and Number of branches were recorded at every three month interval. The results indicated that plant height, collar diameter, crown diameter and number of branches were recorded significantly higher in vermicompost @ 2.5 tonnes/ha along with 200: 100: 200 N, P2O5, K2O from 3 MAT to 12 MAT as compared to other treatments. The treatment vermicompost @ 2.5 tonnes/ha along with 200: 100: 200 N, P2O5, K2O were recorded significantly higher nutrient content in different tree parts viz. Nitrogen (leaf- 1.78%, branch- 0.96% and bark- 0.6%), Phosphorus (leaf-0.55%, branch-0.51% and bark- 0.53%) and Potassium (leaf-1.53%, Branch- 1.68% and bark- 0.71%) over the other treatments. The soil pH and electrical conductivity showed non-significant effect in all treatments. The organic carbon showed significantly higher (0.88%) in vermicompost @ 2.5 tonnes/ha with 200: 100: 200 N, P2O5, K2O kg/ha at 12MAT. The treatment vermicompost @ 2.5 tonnes/ha along with 200: 100: 200 N, P2O5, K2O were recorded significantly higher available Nitrogen (143.79 kg/ha), Phosphorus (29.06 kg/ha) and Potassium (87.02 kg/ha).