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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 × End date: 2007 × Start date: 2007 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    HEAVY METALS IN SOIL - WATER - PLANT ECOSYSTEMS OF PERI URBAN BANGALORE
    (University of Agricultural Sciences GKVK, Banglore, 2007-10-05) BHANU, PRAKASH, U. H.; S. G. Patil
    Bangalore, one of the fastest growing cities in India produces nearly 800 million liters of urban sewage daily. Sewage in peri urban Bangalore drains in two phases Chalaghatta - Varthur valley (East phase) and Vrishabavathi - Byramangala valley (West phase). The sewage is used for growing vegetables fruits and other crops by the peri urban fanners. The range of heavy metal content of sewage sampled at various locations during rainy season were Cd 0.01 to 0.03, Cr 0.03 to 0.04, Pb 0.06 to 0.12, Ni 0.06 to 0.11 mg 1 and in summer the ranges were As 0.71 to 0.99, Cd 0.03 to 0.16, Cr 0.12 to 0.15, Pb 0.29 to 0.39, Ni 0.16 to 0.23 mg f' respectively. The average content of As, Pb, Cd, Cr, Ni, Cu, Fe, Mn and Zn in edible parts of vegetables were 65.1, 27.8, 2.2, 51.6, 30.7, 60.2, 688.2 and 132.0 mg kg' dry weight in samples of east phase. The vegetables, fruits and other crops grown in peri urban Bangalore using sewage recorded very high levels of metals and are not suitable for human consumption.
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    ThesisItemOpen Access
    CHARACTERIZATION OF TANK SILTS OF NORTH KARNATAKA AND EVALUATION OF ITS EFFECT ON THE GROWTH AND YIELD OF GROUNDNUT
    (University of Agricultural Sciences GKVK, Banglore, 2007-09-01) N. K. BINITHA; G. S. DASOG
    A study was conducted on the characterization of tank silts of North Kamataka and the effect of tank silt application on the growth and yield of groundnut. The tank sills were sampled from 33 tanks spread in six districts of North Kamataka. Clay dominated the tank silt in Bellary and Bidar districts. In Bagalkot district, the samples were dominated by sand due to sandstone parent rock. The pH was slightly alkaline in ail the samples. EC was around 0.2 except in Haveri, which was very low. Nitrogen content was around 0.1 % in majority of the cases, for Bagalkot and Haveri, potassium was around 0.5 % in majority of the cases. Phosphorus content was also around 0.075 %. Among micronutrients, silt is rich in iron followed by copper, manganese atid zinc. Quality of water sampled from these tanks was good. The properties of Kyasanakere tank silt was compared with its catchment. The coarse sand and fine sand content recorded similar values, silt content was higher in the catchment while clay was higher in the tank bed. Among the nutrients, the total N, P and Zn were higher in the tank bed silt than the catchment soil. The mineralogy of the clay and silt fraction indicated presence of mica, smectite, vermiculite, quartz, K and plagioclase feldspar in both tank silt and catchment soil. Plagioclase feldspars are more dominant than K feldspars in the silt and catchment soils. The incubation study reveled that the tank silt at 201 ha"' was significantly superior over 10 t ha*' and no silt with respect to ammoniacal and nitrate N, available phosphorus sulphur and micronutrients. The field experiment was carried out at Muradi in Koppal district during rabi season of 2004-05 using silt from Ramdurga tank nearby. Tank silt at 20t ha"' recorded significantly highest growth parameters, pod yield, haulm yield, yield attributes, major and micronutrient concentration, uptake and residual status in soil at all the crop growth stages.
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    ThesisItemOpen Access
    IMPROVING EFFICIENCY OF COPPER ORE TAILIGS(COT)- A SOURCE OF MICRONUTRIENTS
    (University of Agricultural Sciences GKVK, Banglore, 2007-01-05) SUNIL D TAMGALE; H. M. MANJUNATHAIAH
    NO Abstract
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    ThesisItemOpen Access
    IMPACT OF INTEGRATED NUTRIENT MANAGEMENT ON FINGERMILLET - GROUNDNUT CROPPING SYSTEM AND SOIL QUALITY PARAMETERS IN EASTERN DRY ZONE OF KARNATAKA
    (University of Agricultural Sciences GKVK, Bangalore, 2007-08-13) CHIKKARAMAPPA, T.; M.S. BADRINATH
    No Abstract
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    ThesisItemOpen Access
    CALIBRATION AND CATEGORIZATION OF PLANT AVAILABLE SOIL SILICON IN DIFFERENT RICE ECOSYSTEMS FOR EVALUATING DROUGHT AND DISEASE RESISTANCE IN RICE GENOTYPES
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 2007-10-08) NARAYANASWAMY, C; PRAKASH, N. B
    The plant available soil Si content of Mangalore, Ponnampet and Mudigere as extracted by ammonium acetate and acetic acid ranged from 7.1 to 64.6 and 15.9 to 78.4 ppm, respectively. The soils of Ponnampet recorded lowest available Si followed by Mangalore and highest available Si was recorded in Mudigere soils. In general, 0.5M acetic acid extractable available Si was higher than the ammonium acetate extractable. It was observed that nearly 75 to 85 per cent of the studied soils were categorized as low (< 20 ppm) to medium (20 - 40 ppm) in available Silicon content. The plant available soil Si extracted by various extractants irrespective of the soils used for the study was in the order of 0.005M H2SO4 > 0.1M citric acid > N NaOAc-2 > N NaOAc-1 > 0.5M acetic acid-3 > 0.5M acetic acid-2 > 0.5M acetic acid-l> 0.01M CaCh > 0.5M NH4OAC > distilled water-4 > distilled water-1. Among the methods studied, plant available Si extraction with N NaOAc-I appeared to be the most suitable for evaluating Si availability followed by extraction with 0.5 M acetic acid-2 and N NaOAc-2. These extractants showed the highest degree of significant correlation with the per cent Si and its uptake in straw and grain. The critical levels for plant available Si in the soil as extracted by different extractants ranged from 14 ppm (distilled water-1) to 207 ppm (0.005 M H2SO4). There was wide variation in low, medimn and high categories of plant available Si for different extractants calculated based on per cent relative yield. The critical level of Si in straw and grain were 2.9 and 1.2 ppm, respectively. There was a greater variation in Si accumulation among different rice genotypes studied. Rasi recorded maximum Si uptake followed by BI-33. The Si accumulation was highest at harvesting stage followed by flowering stage and least at maximum tillering stage. The silicon accumulation was maximum in submerged conditions than aerobic conditions. The grain and straw yields increased significantly with the application of silicon at 117 kg Si ha"' as calcium silicate along with varied N levels at both the locations over non silicon treated plots. Interaction between Si and N was positive and found to be statistically significant in obtaining higher grain and straw yields, reduced per cent blank spikelets and insects and diseases.
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    ThesisItemOpen Access
    CALIBRATION AND CATEGORIZATION OF PLANT AVAILABLE SOIL SILICON IN DIFFERENT RICE ECOSYSTEMS FOR EVALUATING DROUGHT AND DISEASE RESISTANCE IN RICE GENOTYPES
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2007-02) NARAYANASWAMY, C; PRAKASH, N B
    The plant available soil Si content of Mangalore, Ponnampet and Mudigere as extracted by ammonium acetate and acetic acid ranged from 7.1 to 64.6 and 15.9 to 78.4 ppm, respectively. The soils of Ponnampet recorded lowest available Si followed by Mangalore and highest available Si was recorded in Mudigere soils. In general, 0.5M acetic acid extractable available Si was higher than the ammonium acetate extractable. It was observed that nearly 75 to 85 per cent of the studied soils were categorized as low (< 20 ppm) to medium (20 - 40 ppm) in available Silicon content. The plant available soil Si extracted by various extractants irrespective of the soils used for the study was in the order of 0.005M H2SO4 > 0.1M citric acid > N NaOAc-2 > N NaOAc-1 > 0.5M acetic acid-3 > 0.5M acetic acid-2 > 0.5M acetic acid-1> 0.01M CaCl2 > 0.5M NH4OAc > distilled water-4 > distilled water-1. Among the methods studied, plant available Si extraction with N NaOAc-1 appeared to be the most suitable for evaluating Si availability followed by extraction with 0.5 M acetic acid-2 and N NaOAc-2. These extractants showed the highest degree of significant correlation with the per cent Si and its uptake in straw and grain. The critical levels for plant available Si in the soil as extracted by different extractants ranged from 14 ppm (distilled water-1) to 207 ppm (0.005 M H2SO4). There was wide variation in low, medium and high categories of plant available Si for different extractants calculated based on per cent relative yield. The critical level of Si in straw and grain were 2.9 and 1.2 ppm, respectively. There was a greater variation in Si accumulation among different rice genotypes studied. Rasi recorded maximum Si uptake followed by BI-33. The Si accumulation was highest at harvesting stage followed by flowering stage and least at maximum tillering stage. The silicon accumulation was maximum in submerged conditions than aerobic conditions. The grain and straw yields increased significantly with the application of silicon at 117 kg Si ha-1 as calcium silicate along with varied N levels at both the locations over non silicon treated plots. Interaction between Si and N was positive and found to be statistically significant in obtaining higher grain and straw yields, reduced per cent blank spikelets and insects and diseases.