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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: Soil Science and Agriculture Chemistry × Author: ASHOKA, K. R. × End date: 2009 × Start date: 2009 ×
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    STUDIES ON PERSISTENCE AND DEGRADATION OF PROPINEB IN SOILS AND ITS EFFECT AS A SOURCE OF ZINC FOR POTATO
    (University of Agricultural Sciences GKVK, Bangalore, 2009-07-02) ASHOKA, K. R.; Hanumantharaju, T. H.
    A field and laboratory experiments were conducted to determine the persistence and degradation of propineb in soils and its effect as a source of zinc for potato. Propineb residue degraded faster in potato under field condition when applied at 1400 and 2800 g a.i ha*1. However, the propineb was noticed in soil on the day of propineb spray. Degradation was faster at lower dose than higher dose of application with the half-life values of 2.3 and 2.5 days. The safe waiting period of 3.3 and 4.3 days was recommended for potato when applied at 1400 and 2800 g a.i ha-1 of propineb. Among the fungicide and among fertilizers, the higher potato tuber yield was recorded in 1400 g a.i ha-1 with B:C ratio of 4.4 compared to other treatments. The zinc content of potato leaves and potato tuber was higher in 2800 g a.i ha*1 of propineb followed by 1400 g a.i ha'1 of propineb, 1400 g a.i ha-1 of metiram, 1850 g a.i ha-1 of Zn-EDTA, 0.2 % ZnS0 4 .7 H2 0 and 20 kg ha*1 ZnS04.7H20 compared to control. Persistence and degradation was studied in Malur and Hassan soils at 25 and 50 Mg g '1 with field capacity and half-field capacity moisture regimes. The degradation pattern followed the first order kinetics. Degradation of propineb was faster under filed capacity than half-field capacity moisture regimes at both rates in both the soils. Higher degradation was noticed in Malur soil than Hassan soil at both the rates of application and moisture regimes. The half-life values ranged from 6.5 to 7.1 days for Malur soil and 6.9 to 7.1 days for Hassan soil when applied at 25 and 50 |ig g*1 of propineb under field capacity. Under half-field capacity the half-life ranged from 7.1 to 7.9 days for Malur soil and 9.2 and 9.8 days when applied at 25 and 50 jig g-1 of propineb.