University of Agricultural Sciences, Bengaluru

University of Agricultural Sciences Bangalore, a premier institution of agricultural education and research in the country, began as a small agricultural research farm in 1899 on 30 acres of land donated by Her Excellency Maharani Kempa Nanjammanni Vani Vilasa Sannidhiyavaru, the Regent of Mysore and appointed Dr. Lehmann, German Scientist to initiate research on soil crop response with a Laboratory in the Directorate of Agriculture. Later under the initiative of the Dewan of Mysore Sir M. Vishweshwaraiah, the Mysore Agriculture Residential School was established in 1913 at Hebbal which offered Licentiate in Agriculture and later offered a diploma programme in agriculture during 1920. The School was upgraded to Agriculture Collegein 1946 which offered four year degree programs in Agriculture. The Government of Mysore headed by Sri. S. Nijalingappa, the then Chief Minister, established the University of Agricultural Sciences on the pattern of Land Grant College system of USA and the University of Agricultural Sciences Act No. 22 was passed in Legislative Assembly in 1963. Dr. Zakir Hussain, the Vice President of India inaugurated the University on 21st August 1964.

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USE OF 60LD ORE TAILINGS AS A SOURCE OF MICRONUTRIENTS IN AGRICULTURE
(UNIVERSITY OF AGRICULTURAL SCIENCES BANGALORE, 2004-01-22) VENUG0PAL, G; MANJUNATHAIAH), H.M.
Gold Ore Tailings (GOT) is the waste developed after the extraction of Gold using cyanide process. Before disiDosal, GOT sluny was rccKdcd in mill to biing down the cymiide to minimum possible limit {< 15 ppm). The GOT is lich in micronutiients j/iz,, total Fe (12,6%), Mn (2.19%), Cu (0.0217%) and Zn (0.008%). The aged GOT (2-3 years old) was used to conduct laboratory and field experiments during kharif 2001 to know the effect of GOT and copper ore tailings (COT) on the release of available Zn, Cu, F^e iuid Mn, soil enzj me activity, growtli, yield and nuUient uptake of Cauliflower. In laboratory study, GOT and COT with FYM signiflcantly increased the release of available Zn, Cn, Mn and Fe and enzyme activity. Maximum release of Zn (1.84 ppm) and Cu (3.26 ppm) was in COT 1.5 t/ha with FYM and the available Fe (13.68 ppm) and Mn (11.96 ppm) was in GOT 2.00 t/ha with FYM. The enzjme activity was not significantly affected by apphcation of GOT and COT compared to control. In tlie field experiment, different levels of GOT were tried individually and in combination with different levels of COT. The highest curd diameter (28.62 cm) and curd yield (25.75 t/ha) was noticed in GOT 1.0 t/ha + COT 0.5 t/ha. Application of GOT and COT together significantly enhcuiced tlie N, P, K, Zn, Cu, Fe and Mn uptake by Caidiflowci at all stages of crop growth. However, CN, Pb and As uptake was below tlie permissible hniit. Ihe residual micronutrients status of soil was greatly enhanced by apphcation of GOT and COT together. A])phcation of GOT 1.0 t/ha+ COT 0.5 t/ha has recorded liigher net irtnins (Rs. 103000 /ha) witli B:C ratio of 2.59 when compracd with the apphcation of recommended fcrtihser alone.
Open Access
USE OF G0LD ORE TAILINGS AS A SOURCE OF MICRONUTRIENTS IN AGRICULTURE
(UNIVERSITY OF AGRICULTURAL SCIENCES BANGALORE, 2004-01-22) VENUG0PAL, G; MANJUNATHAIAH, H.M
Gold Ore Tailings (GOT) is the waste developed after the extraction of Gold using cyanide process. Before disiDosal, GOT sluny was rccKdcd in mill to biing down the cymiide to minimum possible limit {< 15 ppm). The GOT is lich in micronutiients j/iz,, total Fe (12,6%), Mn (2.19%), Cu (0.0217%) and Zn (0.008%). The aged GOT (2-3 years old) was used to conduct laboratory and field experiments during kharif 2001 to know the effect of GOT and copper ore tailings (COT) on the release of available Zn, Cu, F^e iuid Mn, soil enzj me activity, growtli, yield and nuUient uptake of Cauliflower. In laboratory study, GOT and COT with FYM signiflcantly increased the release of available Zn, Cn, Mn and Fe and enzyme activity. Maximum release of Zn (1.84 ppm) and Cu (3.26 ppm) was in COT 1.5 t/ha with FYM and the available Fe (13.68 ppm) and Mn (11.96 ppm) was in GOT 2.00 t/ha with FYM. The enzjme activity was not significantly affected by apphcation of GOT and COT compared to control. In tlie field experiment, different levels of GOT were tried individually and in combination with different levels of COT. The highest curd diameter (28.62 cm) and curd yield (25.75 t/ha) was noticed in GOT 1.0 t/ha + COT 0.5 t/ha. Application of GOT and COT together significantly enhcuiced tlie N, P, K, Zn, Cu, Fe and Mn uptake by Caidiflowci at all stages of crop growth. However, CN, Pb and As uptake was below tlie permissible hniit. Ihe residual micronutrients status of soil was greatly enhanced by apphcation of GOT and COT together. A])phcation of GOT 1.0 t/ha+ COT 0.5 t/ha has recorded liigher net irtnins (Rs. 103000 /ha) witli B:C ratio of 2.59 when compracd with the apphcation of recommended fcrtihser alone.
Open Access
USE OF G0LD ORE TAILINGS AS A SOURCE OF MICRONUTRIENTS IN AGRICULTURE
(UNIVERSITY OF AGRICULTURAL SCIENCES BANGALORE, 2004-01-22) VENUG0PAL, G; MANJUNATHAIAH, H.M
Gold Ore Tailings (GOT) is the waste developed after the extraction of Gold using cyanide process. Before disiDosal, GOT sluny was rccKdcd in mill to biing down the cymiide to minimum possible limit {< 15 ppm). The GOT is lich in micronutiients j/iz,, total Fe (12,6%), Mn (2.19%), Cu (0.0217%) and Zn (0.008%). The aged GOT (2-3 years old) was used to conduct laboratory and field experiments during kharif 2001 to know the effect of GOT and copper ore tailings (COT) on the release of available Zn, Cu, F^e iuid Mn, soil enzj me activity, growtli, yield and nuUient uptake of Cauliflower. In laboratory study, GOT and COT with FYM signiflcantly increased the release of available Zn, Cn, Mn and Fe and enzyme activity. Maximum release of Zn (1.84 ppm) and Cu (3.26 ppm) was in COT 1.5 t/ha with FYM and the available Fe (13.68 ppm) and Mn (11.96 ppm) was in GOT 2.00 t/ha with FYM. The enzjme activity was not significantly affected by apphcation of GOT and COT compared to control. In tlie field experiment, different levels of GOT were tried individually and in combination with different levels of COT. The highest curd diameter (28.62 cm) and curd yield (25.75 t/ha) was noticed in GOT 1.0 t/ha + COT 0.5 t/ha. Application of GOT and COT together significantly enhcuiced tlie N, P, K, Zn, Cu, Fe and Mn uptake by Caidiflowci at all stages of crop growth. However, CN, Pb and As uptake was below tlie permissible hniit. Ihe residual micronutrients status of soil was greatly enhanced by apphcation of GOT and COT together. A])phcation of GOT 1.0 t/ha+ COT 0.5 t/ha has recorded liigher net irtnins (Rs. 103000 /ha) witli B:C ratio of 2.59 when compracd with the apphcation of recommended fcrtihser alone.
Open Access
USE OF G0LD ORE TAILINGS AS A SOURCE OF MICRONUTRIENTS IN AGRICULTURE
(UNIVERSITY OF AGRICULTURAL SCIENCES BANGALORE, 2004-01-22) VENUG0PAL, G; MANJUNATHAIAH, H.M
Gold Ore Tailings (GOT) is the waste developed after the extraction of Gold using cyanide process. Before disiDosal, GOT sluny was rccKdcd in mill to biing down the cymiide to minimum possible limit {< 15 ppm). The GOT is lich in micronutiients j/iz,, total Fe (12,6%), Mn (2.19%), Cu (0.0217%) and Zn (0.008%). The aged GOT (2-3 years old) was used to conduct laboratory and field experiments during kharif 2001 to know the effect of GOT and copper ore tailings (COT) on the release of available Zn, Cu, F^e iuid Mn, soil enzj me activity, growtli, yield and nuUient uptake of Cauliflower. In laboratory study, GOT and COT with FYM signiflcantly increased the release of available Zn, Cn, Mn and Fe and enzyme activity. Maximum release of Zn (1.84 ppm) and Cu (3.26 ppm) was in COT 1.5 t/ha with FYM and the available Fe (13.68 ppm) and Mn (11.96 ppm) was in GOT 2.00 t/ha with FYM. The enzjme activity was not significantly affected by apphcation of GOT and COT compared to control. In tlie field experiment, different levels of GOT were tried individually and in combination with different levels of COT. The highest curd diameter (28.62 cm) and curd yield (25.75 t/ha) was noticed in GOT 1.0 t/ha + COT 0.5 t/ha. Application of GOT and COT together significantly enhcuiced tlie N, P, K, Zn, Cu, Fe and Mn uptake by Caidiflowci at all stages of crop growth. However, CN, Pb and As uptake was below tlie permissible hniit. Ihe residual micronutrients status of soil was greatly enhanced by apphcation of GOT and COT together. A])phcation of GOT 1.0 t/ha+ COT 0.5 t/ha has recorded liigher net irtnins (Rs. 103000 /ha) witli B:C ratio of 2.59 when compracd with the apphcation of recommended fcrtihser alone.

University of Agricultural Sciences, Bengaluru

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