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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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Subject: Agricultural Microbiology × Author: AMANDA, SHYLLA × Start date: 2013 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    MICROBIAL AND BIOCHEMICAL SOIL HEALTH INDICATORS FOR DRY LAND AGRICULTURE IN ALFISOLS
    (University of Agricultural Sciences GKVK, Bangalore, 41155) AMANDA, SHYLLA; Balakrishna, A N
    Alfisols of dry land agriculture are degrading due to several physical, chemical and biological constraints. Recognizing the importance of soil quality in dryland alfisols, efforts were made to identify the microbial indicators for assessment of soil health in a long-term experiment comprising of organics and fertilizers under different cropping sequences at the Dry land experimental field unit, UAS, GKVK, Bangalore. In this study, soil and nutrient management practices were evaluated for their long-term influence on soil quality using certain microbial indicators. The microbial indicators considered are; abundance of different functional groups of microorganisms, their bio-chemical activities and soil physico-chemical parameters. The results showed, that there was a significant increase in abundance of different functional groups of microorganisms viz., Azotobacter, cellulose degrading microorganisms, phosphate solubilizing microorganisms, ammonium and nitrite oxidizers and mycorrhizal spore density, microbial parameters like soil microbial biomass-C and N due to the amendment of both organics (FYM/maize residues) and fertilizers irrespective of the cropping sequences compared to that of control and when applied singly. The application of both organics and fertilizers also increased soil biochemical activities like the activities of enzymes viz., dehydrogenases, phosphatases and ureases. Further, the soil physico-chemical properties also improved with the treatment of organics along with inorganic fertilizers. There was a significant positive correlation between the microbial parameters, soil bio-chemical properties to that of soil physico-chemical properties and crop yield. This suggests that the microbial and their biochemical properties can be used as indicators to assess the soil health in alfisols of dryland agriculture.