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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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  • ThesisItemOpen Access
    STATUS AND REVALIDATION OF PHOSPHORUS REQUIREMENT FOR FINGER MILLET-MAIZE CROPPING SYSTEM IN SOILS OF EASTERN DRY ZONE OF KARNATAKA
    (University of Agricultural Sciences GKVK, Bangalore, 2014-10-05) CHANDRAKALA, M.; SRINIVASAMURTHY, C. A.
    An investigation on available soil phosphorus status, P fractions, requirement of P for finger millet and maize in EDZ of Karnataka and revalidation of soil test ratings for phosphorus was taken at UAS, Bangalore. Soil samples from EDZ were analysed for P status and randomly collected samples were analysed for P fractions. Response of finger millet and maize to graded levels of P was studied in the field by creating five phosphorus fertility gradients viz., P0 (Very low), P1 (Low), P2 (Medium), P3 (High) and P4 (Very high) (< 15: 16-30: 31-45: 46-60: > 60 kg P2O5 ha-1, respectively). Critical limits and soil P ratings was determined by conducting pot culture experiment in 24 soils from six different locations from each VL, L, M and H categories, using maize as test crop applied with graded levels of P. Results revealed that, application of 125% RDP with rec. NK&FYM recorded higher finger millet (31.66 and 55.32 q ha-1grain and straw, respectively) and maize (78.26 q ha-1 grain) yield in high P strip. PUE was higher with lower levels of P application. There was a build-up of P in soil with graded levels of P application to gradient strips, which was reflected by increase in total P and P fractions. Critical limit for available P2O5 was 17.00 kg ha-1 and for plant 0.12 per cent. The proposed fertility ratings for available P2O5 are <15.50, 15.51-28.00, 28.10-48.50 and >48.50 kg ha-1; VL: L: M: H, respectively. Available P2O5 in soils of EDZ ranged 10.22 to 98.32 kg ha-1. Percentage of soil samples under different category are Low (30.80) > Medium (27.20) > High (21.20) > Very low (20.80). Total-P, organic-P, reductant soluble-P, occluded-P and Ca-P increased as the soil phosphorus fertility increased and reverse trend was noticed for saloid-P, Al-P and Fe-P fractions.