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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 and Water Engineering × Author: DEVAPPA × End date: 2023 × Start date: 2020 ×
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    ThesisItemOpen Access
    STUDIES ON EFFECT OF CONSERVATION TILLAGE AND IN-SITU GREEN MANURING ON SOIL MOISTURE DYNAMICS IN PIGEONPEA IN EASTERN DRY ZONE OF KARNATAKA
    (University of Agricultural Sciences, Bangalore, 2022-12-08) DEVAPPA; Rajashekarappa, K S
    “ in-situ green ” conducted during Kharif 2021 at AICRP for Dryland Agriculture, UAS, Bangalore. The experiment was laid out in split plot design with three each main plots on different conservation tillage and sub plots of in-situ green manuring practices replicated thrice. Among different conservation tillage, conventional tillage M1-1 Ploughing + 2 Harrowing + 1 intercultural operation with pigeonpea as test crop recorded significantly higher infiltration rate, lower bulk density and better growth attributes resulted in higher grain yield (974 kg ha-1) and better rainwater use efficiency (0.82 kg ha-mm-1) compared to reduced (M2) and zero tillage (M3). Whereas, M2 recorded higher B:C ratio. Significantly higher available N (234.90, 196.58 and 181.92 kg ha-1), P2O5 (81.47, 47.53 and 41.99 kg ha-1), K2O (187.59, 159.50 and 142.38g ha-1) and OC (0.47, 0.44 and 0.40 %) at different soil depth viz., 0-7.5, 7.5-15 and 15-30 cm, respectively and also higher microbial population of bacteria, fungi, actinomycetes at 15 cm soil depth was noticed in zero tillage compared to other tillage practices. In in-situ green manuring practices with horsegram (C3) recorded significantly higher infiltration rate, soil moisture, microbial population, nutrient status, higher B:C ratio and lower bulk density as compared to sunhemp (C2). Overall adoption of conservation agriculture created positive impact on soil quality and crop yield in rainfed conditions.