An Asian Journal of Soil Science

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Effect of Gold Ore Tailings on Seed Yield and Uptake of Micronutrients by Sunflower [Helianthus annuus (L.)]


Affiliations
1 Department of Soil Science and Agricultural Chemistry, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), India
2 Department of Soil Science and Agricultural Chemistry, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), India
     

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A field investigation was conducted in a Vertisol at Main Agricultural Research Station, University of Agricultural Sciences, Dharwad during kharif 2006-07 to study the use of gold ore tailings (GOT) as a source of micronutrients on sunflower crop under irrigated condition. Application of GOT @ 1.0 t/ha along with poultry manure significantly improved yield attributing parameters eventually resulting in 22.5 and 26.5 per cent higher seed and stalk yield, respectively over control. The uptake of copper (2345 mg/kg), iron (91567.6 mg/kg), manganese (319.1 mg/kg) and zinc (284.1 mg/kg) also increased significantly due to the application of same level of GOT along with poultry manure. Similar results were observed with application of GOT alone @ 1.0 t/ha and with FYM and vermicompost.

Keywords

COT, GOT, Seed Filling, Oil Content, Sunflower.
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  • Effect of Gold Ore Tailings on Seed Yield and Uptake of Micronutrients by Sunflower [Helianthus annuus (L.)]

Abstract Views: 209  |  PDF Views: 0

Authors

S. Divya
Department of Soil Science and Agricultural Chemistry, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), India
K. K. Math
Department of Soil Science and Agricultural Chemistry, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), India
B. I. Bidari
Department of Soil Science and Agricultural Chemistry, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), India

Abstract


A field investigation was conducted in a Vertisol at Main Agricultural Research Station, University of Agricultural Sciences, Dharwad during kharif 2006-07 to study the use of gold ore tailings (GOT) as a source of micronutrients on sunflower crop under irrigated condition. Application of GOT @ 1.0 t/ha along with poultry manure significantly improved yield attributing parameters eventually resulting in 22.5 and 26.5 per cent higher seed and stalk yield, respectively over control. The uptake of copper (2345 mg/kg), iron (91567.6 mg/kg), manganese (319.1 mg/kg) and zinc (284.1 mg/kg) also increased significantly due to the application of same level of GOT along with poultry manure. Similar results were observed with application of GOT alone @ 1.0 t/ha and with FYM and vermicompost.

Keywords


COT, GOT, Seed Filling, Oil Content, Sunflower.