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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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Author: A G, BABU × Start date: 2006 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    EFFECT OF DIFFERENT ORGANIC SOURCES ON SOIL ORGANIC CARBON POOLS, NUTRIENT CONTENT AND YIELD OF RICE UNDER FLOODED AND AEROBIC METHOD OF RICE CULTIVATION
    (University of Agricultural Sciences GKVK, Bangalore, 41837) A G, BABU; S S, PRAKASH
    Organic matter is critical to maintenance of soil fertility and productivity. Thus it is very important to understand the pools of the organic carbon and their distribution under different method of rice cultivation. The experiment was laid out in split plot design with seven treatments replicated thrice at ZARS, V.C. Farm Mandya to study the effect of different organic sources on soil organic carbon pools, nutrient content and yield of rice under flooded and aerobic system. The investigation revealed that the application of organic sources along with RDF increased the organic carbon content compared to control (only RDF). The increase was higher in flooded method of cultivation compared system. The SOC, EOC, POC, LFOC, MBC and MBN content was higher in aerobic method compared to flooded method. The labile carbon fractions viz., EOC, POC, LFOC, MBC and MBN content decreased progressively with time. The EOC, MBC and MBN content was higher in the treatment received RDF along with daincha. While POC was higher in biochar treatment. Yield of rice was significantly higher due to incorporation of organic manure + RDF compared to control. Among the organic manure higher grain and straw yield was obtained with daincha (4137 kg ha-1 and 4964 kg ha-1, respectively). The correlation between SOC with EOC, LFOC, POC, MBC and MBN was positive and significant under both the method of cultivation.