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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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ThesisItem Open Access EFFECT OF ENRICHED PHOSPHATIC SLUDGE APPLICATION ON SOIL PROPERTIES, GROWTH, YIELD AND QUALITY OF FIELD BEAN (Vicia faba L.) AND FINGER MILLET (Eleusine coracana L.) CROPS(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-12-27) MORAM, HARSITHA; PRAKASH, N. BCharacterization of enriched phosphatic sludge (EPS) revealed that, it contained high amounts of phosphorus (6.88 %) and organic carbon (11.50 %) with appreciable amounts of secondary and micro nutrients. In the incubation study, rate of release of major, secondary and micronutrients was higher in the treatment with EPS @ 1250 kg ha-1 over control. In the pot culture experiment, application of RDF + EPS @ 750 kg ha-1 significantly increased the plant height, dry matter production and nutrient uptake by above ground dry matter of finger millet at 60 DAS. Nutrient status (major, secondary and micro nutrients) was higher in treatment with RDF + EPS @ 1000 kg ha-1. Further, field experiments were conducted to study the effect of enriched phosphatic sludge (EPS) application on soil properties, growth, yield and quality of field bean and finger millet during 2015-16 in V.C. farm, Mandya, with 12 treatments replicated thrice by adopting RCBD design. Higher pod (9.45 q ha-1), stalk (23.14 q ha-1) yield and uptake of nutrients in field bean were recorded in treatment with RDF + EPS @ 750 kg ha-1. Higher grain (38.74 q ha-1), straw (43.0 q ha-1) yield and uptake of nutrients in finger millet was recorded with the application of EPS @ 750 kg ha-1 along with RDF. In case of finger millet and field bean, available nutrient status was improved in treatments which received RDF + EPS @ 1000 kg ha-1, RDF + EPS @ 750 kg ha-1 and RDF + FYM respectively. Economic analysis revealed that, higher B: C ratio was obtained in treatment RDF + FYM and followed by RDF + EPS @ 750 kg ha-1 in both field bean and finger millet crops.ThesisItem Open Access EFFECT OF DIFFERENT LEVELS OF ENRICHED PHOSPHATIC SLUDGE APPLICATION ON SOIL PROPERTIES, GROWTH, YIELD AND QUALITY OF MAIZE (Zea mays L.) AND PADDY (Oryza sativa L.) CROPS(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-12-27) ERESH; PRAKASH, S. S.Analysis of enriched phosphatic sludge (EPS) revealed that it contained 11.30 per cent organic carbon, 6.88 per cent phosphorus and appreciable amount of other nutrients and can be used as manure in crop production. Incubation studies revealed that rate of release of major, secondary and micronutrients was higher in T7 (soil + EPS @ 1250 kg ha-1) over control under flooded condition. Pot culture experiments revealed that application of RDF + EPS @ 750 kg ha-1 significantly increased the plant height, dry matter production and nutrient uptake by paddy at 60 DAT. The heavy metal content in soil and plants were below detection limit. Further, field experiments revealed that kernel and stover yield of maize increased with increasing levels of EPS as compared to control and significantly higher kernel (90.84 q ha-1) and stover (110.80 q ha-1) yield and nutrient uptake was recorded due to application of RDF + 750 kg EPS ha-1 and it was on par with RDF + FYM @ 10 t ha-1. Grain (76.70 q ha-1) and straw (89.37 q ha-1) yield of paddy was higher with the application of RDF + 750 kg EPS ha-1. Nutrient status of soil after harvest of maize and paddy was improved in treatment which received RDF + 1000 kg EPS ha-1, RDF +750 kg EPS ha-1 and RDF + FYM @ 10 t ha-1. Economic analysis revealed that, highest B: C (2.50) was obtained in treatment T2 which received RDF + FYM 10 t ha-1 in maize and highest B:C (2.46) was obtained in treatment T6 which received RDF + 750 kg EPS ha-1 in case of paddy. The heavy metal elements content was below detection limit both in rice and maize kernel and in soil.ThesisItem Open Access EFFECT OF SOLUBLE FERTILIZERS ON SOIL PROPERTIES, GROWTH AND YIELD OF POTATO (Solanum tuberosum L.)(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-11-27) PRADEEP KUMAR, Y. B.; Kadalli), G. G.A field experiment was conducted during Kharif 2016 at College of Agriculture, Hassan to study the effect of water soluble fertilizers on soil properties, growth and yield of potato (Solanum tuberosum L.). The experiment was laid out in RCBD with eight treatment combinations and three replications. Different concentrations of water soluble fertilizers viz., 19:19:19 and potassium sulphate @ 100 %, 80 %, 60 %, 40 % and 20 % of RDF were tested with conventional fertilizers viz., DAP, MOP and urea applied @ 100 % RDF as per POP (control). The water soluble fertilizers were supplied through micro sprinklers in four equal splits at an interval of seven days starting from 20 DAS. The results revealed that the higher tuber yield of potato (22.19 t ha-1) was recorded in treatment with WSF @ 100 % RDF followed by treatment with WSF @ 80 % RDF (21.28 t ha-1). These two treatments were found on par with each other but found significantly higher than that of control. The percent increase in tuber yield were 26.94 and 21.74, respectively over control. This was attributed to significant improvement in growth and yield attributing parameters and higher uptake of both macro and micro nutrients by potato. Higher gross and net returns were noticed with WSF @ 100 % RDF compared to other treatments. However, higher B:C ratio (3.21) was recorded in treatment with WSF @ 80 % RDF indicating this rate of application is more profitable than other WSF rates.ThesisItem Open Access CHARACTERIZATION, CLASSIFICATION AND SUITABILITY EVALUATION OF SOILS OF BETTADAPURA MINI WATERSHED CHAMARAJANAGARA DISTRICT, KARNATAKA BY USING(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-11-27) CHIKKARAJU, S. N.; CHIKKARAMAPA., TCharacterization, classification and crop suitability evaluation of soils was carried out in Bettadapura mini watershed of Chamarajanagara district, Karnataka using remote sensing and GIS techniques. The study area has semi-arid climate with average annual rain fall of 799.3 mm. Twenty pedons representing the entire study area were studied for morphological and physico-chemical properties. The soils are loamy sand to clay in texture, shallow to very deep in depth, dark yellowish brown to black in colour, slightly acidic to slightly alkaline in reaction, low to medium in organic carbon status. Based on morphometric characteristics, soils were classified as alfisols, inceptisols, entisols and vertisols. The study area was classified under land capability classes in to II, III and IV. About 55.32 per cent area is moderately cultivable with some limitations. An area of 19.54 per cent area is good for cultivation of crops. The soils were evaluated for crop suitability based on limitations classified in to highly suitable (S1), moderately suitable (S2), marginally suitable (S3) and permanently not suitable (N). The study area is highly suitable for cultivation of sorghum, cotton and red gram. Based on information obtained from the thematic maps and soil data, the soils were divided in to four groups and for which alternate land use options were suggested.ThesisItem Open Access EFFECT OF VARIED LEVELS OF SULPHUR AND SOURCES OF ORGANICS ON GROWTH AND YIELD OF SOYBEAN(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-11-03) SAHEBAGOUDA; Chikkaramappa, T.A field experiment was conducted during kharif 2016 to study the “Effect of varied levels of sulphur and sources of organics on growth and yield of soybean in Alfisols of Karnataka” at Palanahalli, Magadi taluk Ramanagara. The experiment comprised, application of 50% and 100% of NPK fertilizers, varied levels of sulphur and sources of organics in combination with seventeen treatments replicated thrice with RCBD. The experimental results revealed that application of 100% RDF+ poultry manure at 6 t ha-1 + sulphur at 40 kg ha-1 through gypsum (T9) recorded significantly higher plant height (74.81 cm), number of branches (10.97), dry matter content (36.33 g plant-1), pod yield (30.30 q ha-1), seed yield (26.90 q ha-1), straw yield (44.15 q ha-1), protein yield (1090.80 kg ha-1), oil yield (578.35 kg ha-1) and fibre content (8.86%) . But, it was on par with treatment T8 which received 100% RDF + poultry manure 6 t ha-1 + sulphur 20 kg ha-1 through gypsum as compared to rest of the treatments. Higher uptake of major and micronutrients was also recorded in the T9 treatment. Maximum available nitrogen (281.33 kg ha-1), phosphorus (45.55 kg ha-1) and potassium (295 kg ha-1) were recorded in T8 which received 100 % RDF + poultry manure at 6 t ha-1 + sulphur 20 kg ha-1 through gypsum (303.13 kg ha-1). However, higher B: C ratio (3.41) was recorded in T9 which received 100% RDF + poultry manure 6 t ha-1 + sulphur 40 kg ha-1 through gypsum.ThesisItem Open Access STUDIES ON SILICON POOLS IN RICE SOILS OF SELECTED AGRO CLIMATIC ZONES OF KARNATAKA(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-09-28) PALLAVI, T; Prakash, N. B.In order to study the different pools of Si in soils and their contribution to rice, two surface soil samples were collected from each of four agro climatic zones of Karnataka with distinct climatic features. Five major pools of silicon (Si) such as mobile Si, adsorbed Si, organic matter bound Si, occluded Si in pedogenic oxides/hydroxides and amorphous Si were extracted from these soils using a sequential extraction method. The different pools of Si extracted from soils were in the order of amorphous Si > occluded Si > organic Si > adsorbed Si and mobile Si. The mobile Si and adsorbed Si pools were the smallest pools of Si and ranged from 14.45 to 44.60 mg kg-1 and 4.90 to 89.40 mg kg-1 , respectively. Irrespective of the soils, amorphous Si was found to be the largest pool of Si ranging from 8,019 to 16,667 mg kg-1. Pot culture experiment conducted using the bulk soil samples of these zones with rice as test crop revealed that there was a significantly higher Si content and uptake in Bellatha (southern dry zone) and Honnavile soil (southern transition zone), respectively and lower in Brahmavara soil (coastal zone). Better correlation and regression coefficients were recorded between Si pools, plant available Si in soils and Si content and its uptake by rice when only three soils (one each from low, medium and high content of plant available Si) were considered among the eight selected soils. The occluded, mobile and adsorbed pools of Si showed significantly higher correlation and regression with Si content and its uptake by rice and hence considered as major contributors of Si to rice.ThesisItem Open Access EFFECT OF GRADED LEVELS OF MAJOR NUTRIENTS AND DIFFERENT SOURCES OF ORGANIC MANURES ON SOIL PROPERTIES AND CROP PERFORMANCE IN HYBRID RICECOWPEA CROPPING SYSTEM(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-09-22) SHRUTHI; Gowda, R. C.Effect of FYM and green manures (Pongamia, glyricidia and sunhemp) along with NPK levels were studied in field experiment to investigate their effect on hybrid rice-cowpea cropping system. The experiment was conducted at Zonal Agricultural Research Station, Vishweshwaraiah Canal Farm, Mandya, during 2015-16 and 2016-17 with hybrid rice as test crop and cowpea as residual crop for two seasons. The experiment was laid out in Randomized Complete Block Design with seventeen treatments replicated thrice. The grain yield (8080.1 kg ha-1), nutrient content and uptake (major, secondary and micro nutrients) by hybrid rice crop were significantly higher in treatment 125% RDF + pongamia (T11). A decline in soil pH was recorded with increase in dosage of NPK fertilizers and application of different organic manures. Significant increase in soil chemical properties and enzyme activity of soil after harvest of hybrid rice was noticed in plots treated with higher level of inorganics i.e. 125% RDF with pongamia. Significantly higher nutrient requirement of nitrogen, phosphorus and potassium (2.35, 0.56 and 2.41 kg q-1 respectively) by hybrid rice crop was also recorded in 125% RDF + pongamia applied treatment. Subsequently, residual effect of the same treatment as in hybrid rice (T11) recorded higher seed yield (1692.5 kg ha-1), nutrients uptake, soil available nutrients and soil enzyme activity in cowpea in hybrid rice-cowpea cropping system. Economic analysis revealed that application of 125% RDF with pongamia recorded higher B:C ratio (2.5) in both the crops in the cropping system as compared to 75% and 100% RDF applied treatments and it was very close with treatment which received 100% STCR with green manure i.e. pongamia and gyricidia (2.4).ThesisItem Open Access GYPSUM AS A SULPHUR SOURCE FOR ACID SOIL – CHANGES IN SOIL PROPERTIES, SULPHUR STATUS AND SULPHUR FRACTIONS, GROWTH AND YIELD OF MAIZE IN AN ACID SOIL OF SOUTHERN DRY ZONE OF KARNATAKA(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-08-24) NAGAPPA, S.; RAMAKRISHNA PARAMA, V. R.The choice of a sulphur source for acid soils has always been a dilemma. The Bhoochetana Programme of Govt. of Karnataka recommends 200 kg gypsum per acre as a sulphur source for acid soils. In order to determine the changes in chemical properties of acid soil and growth and yield of maize and cowpea, as a result of gypsum addition, a field experiment was carried out at Arsihalli, Hassan district during kharif 2016. Seven treatments were replicated thrice using Randomised Complete Block Design. Gypsum was applied at six levels (100, 200, 400, 600, 800 and 1000 kg per acre) and RDF + FYM were applied at the same rate to all treatments. Initial pH of soil was 4.68. The soil pH decreased with increase in levels of gypsum and it increased in the lime treated plot (control). The treatment which received 1000 kg gypsum per acre (T7) recorded higher decrease in soil pH and increased all the sulphur fractions. The acidity parameters such as exchangeable acidity, total potential acidity, Ca and Mg content increased with gypsum levels. The results showed that application of lime (based on lime requirement) significantly increased the pH, Ca and Mg and significantly decreased the acidity parameters such as exchangeable acidity and total potential acidity. Higher yield of maize and cowpea was obtained in treatment T5 (RDF + FYM + 600 kg gypsum per acre) because of favourable conditions for growth & development and higher nutrient uptake by maize and cowpea.ThesisItem Open Access EFFECT OF FOLIAR SILICIC ACID ON GROWTH, YIELD AND NUTRIENT UPTAKE BY SOYBEAN [Glycine max (L.)](UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-08-08) SHWETHAKUMARI, U.; Prakash, N.BA field experiment was conducted at Z.A.R.S, U.A.S, GKVK, Bengaluru, during kharif - 2016 to study the effect of foliar silicic acid on growth, yield and nutrient uptake by soybean [Glycine max (L.)]. The study was conducted by using two soybean varieties (MAUS-2 and KBS-23) with seven treatments and three replications by adopting spilt plot design. The results revealed a significant effect on achieving higher plant height, number of leaves plant-1, pod yield, seed yield, protein yield and oil yield with the foliar application of silicic acid @ 2ml L-1 for three times. Application of foliar silicic acid @ 4ml L-1 three times significantly increased number of branches plant-1, number of pods plant-1, number of seeds plant-1 and haulm yield over other treatments. Greater variation in Si content among various parts of soybean was observed with the foliar application of silicic acid recording higher in haulm (0.42-0.92 %) followed by husk (0.11-0.16 %) and seed (0.06 to 0.15 %). Application of foliar silicic acid significantly enhanced the major, secondary and micronutrients uptake by soybean over control. Irrespective of treatments, application of foliar silicic acid significantly increased the growth parameters of MAUS- 2 variety, while increased the yield parameters of KBS-23 variety. Foliar application of boric acid @ 2ml L-1 and 4ml L-1 for three times also enhanced the growth and yield of soybean over control. Investigation concludes that foliar application of silicic acid @ 2ml L-1 for three times and 4ml L-1 for two or three times along with RDF was found to be effective in MAUS-2 and KBS-23 varieties, respectively.
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