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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 CLAY MINERALOGY OF SOME SOILS OF MYSORE STATE IN RELATION TO PHOSPHATE FERTILISATION AND ION-EXCHANGE PROPERTIES(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 1972) BIDDAPPA, C C; Perur, N GABSTRACT NOT AVAILABLEThesisItem Open Access EFFECT OF SOME INSECTICIDAL RESIDUES IN SOIL AND PLANT ON CHOLINESTERASE INHIBITION ACTIVITY(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 1970) RAGHURAM SHETTY, S V; PERUR, N GABSTRACT NOT AVAILABLEThesisItem Open Access STUDIES ON DISTRIBUTION OF CALCIUM, MAGNESIUM, SULPHUR AND BORON IN SOILS OF SELECTED AGROCLIMATIC ZONES OF KARNATAKA(University of Agricultural Sciences GKVK, Bangalore, 19-08-11) NARENDRABABU, B; SUDHIR, KSoil samples were collected from different locations of northern dry zone, central dry zone, southern dry zone, southern transition zone and coastal zone of Karnataka and were analyzed for available Ca, Mg, S and B. Available Ca, Mg S and B of surface soil ranged from 825 to 1811 mg kg-1, 232 to 340 mg kg-1, 6.39 to 15.22 mg kg-1and 0.328 to 0.631 mg kg-1 in soils of different agro-climatic zones. Available Ca and Mg were highest in soils of northern dry zone and lowest in soils of coastal zone. Available S and B were highest in soils of coastal zone. Available S was lowest in soils of southern dry zone and available was lowest in soil of central dry zone. Available Ca was relatively higher, while available Mg, S and B were relatively lower in the deeper layer of soil as compared to surface layer of soils. Total Ca, Mg and S were much higher in the soils of dry zones as compared to the soils of transition and coastal zone. Coastal zone soils had higher proportion of organic S than soils of the central dry zone and southern transition zone. The four forms of boron together accounted for only 1-2 per cent of total boron in soils of all the five zones. Organic bound boron was relatively higher than those of specifically adsorbed boron and oxide bound boron in soils of most of the zones. Clay and CEC of soil were relatively higher in soils of dry zones as compared to that of coastal zone.ThesisItem Open Access Phosphorus release characterstics, forms and plant uptake in Alfisols of deferential P status(University of Agricultural Sciences GKVK, Bangalore, 07-10-11) EMAL; RAMAKRISHNA PARAMA, V RThe different forms of phosphorus were determined in soils varying in P status (high, medium and low). The soils varying in P status was collected from three villages of Bangalore rural taluk, namely Kariberanahoshalli (high P soil), Devanahalli (medium P soil) and Devanahahalli (low P soil) respectively. Similarly three such types of soils were collected from different locations in GKVK campus of University of Agricultural Sciences Bangalore. The soils were sourced from horticulture plot (high P soil), AICRP on soil test and crop response plot (medium P soil) and Sericulture plot (low P soil). The results showed that he bulk density (1.40 Mg m-3), available P and K (161.00 and 336.90 kg ha-1) respectively, phosphorus buffering capacity (26.20%) and Fe-P (79.56 mg kg-1) were high in the high P soil of Kariberanahoshalli, Bangalore rural taluk. The particle density (3.00 Mg m-3), pH (6.85), available N (334.90 kg ha-1), exchangeable Ca (4.85 cmol P+ Kg-1) and Al-P (86.62 mg kg-1) were high in medium P soil of Devanahalli, Bangalore rural taluk. The maximum water holding capacity (40.29 %), cation exchange capacity (15.4 cmol P+ Kg-1), total P (268.70 mg kg-1) and occld-P (19.34 mg kg-1) were high in low P soil of Devanahahalli, Bangalore rural taluk. In GKVK campus soils, the MWHC (33.10 %), pH (6.7), exchangeable Ca (4.20 cmol P+ Kg-1), and available S (19.50 mg kg-1) were high in high P soil of horticulture plot. The available P (51.80 kg ha-1), total P, Fe-P and Ca-P (411.65, 89.21 and 14.19 mg kg-1) respectively were high in medium P soil of on soil test and crop response plot. The BD (1.35 Mg m-3), pH (5.60), exchangeable Ca and Mg (4.50 and 2.30 cmol P+ Kg-1), Al-P and RS-P (59.21 and 42.00 mg kg-1) were high in low P soil of Sericulture. The change of P fractions during period of cowpea growth in the soils of varying P status was evident. This was indicated by the change in the order of the fractions in the initial (Al-P > Fe-P > RS-P > Occld-P > Sal-P > Ca-P) and residual (Al-P > Fe-P > RS-P > Occld-P > Ca-P > Sal-P) soil samples.ThesisItem Open Access STUDIES ON THE EFFECT OF VARIED LEVELS OF PHOSPHORUS AND ZINC ON GROWTH AND YIELD OF AEROBIC RICE (Oryza sativa L.)(11-09-12) VINAY, K; PRAKASH, S SA field experiment was conducted to study the effect of varied levels of phosphorus and zinc on growth and yield of aerobic rice (Oryza sativa L.)” (Cultivar rasi) during Kharif 2011 at ZARS, V. C. Farm, Mandya. Soil of the experimental site was medium in phosphorus and sufficient in zinc content. The experiment consisted of 3 levels of phosphorus (25, 50 and 75 kg ha-1) and 4 levels of zinc sulfate (0, 10, 20 and 30 kg ha-1) (12 treatments) laid out in Randomized Complete Block Design with three replications. Significantly higher grain and straw yield (3024 and 4027 kg ha-1, respectively) was recorded due to application of P at 75 kg ha-1 compared to application of P at 25 kg ha-1. But it was statistically on par with grain (2996 kg ha-1) and straw (3841 kg ha-1) yield obtained with 50 kg ha-1 P level. However, the effect of levels of zinc sulfate and interaction on yield was not significant. The uptake of P and K by aerobic rice increased significantly with increasing level of P application. Similarly, N, P, K uptake by straw varied significantly due to different levels of zinc sulfate. The interaction effect was also significant with regard to P and K uptake by straw. Higher B:C ratio was recorded due to application of P and ZnSO4 at 50 and 10 kg ha-1, respectively.ThesisItem Open Access STUDIES ON MICRONUTRIENT STATUS OF SOILS OF CHAMARAJANAGARA DISTRICT OF KARNATAKA AND THE EFFECT OF LEVELS AND METHODS OF APPLICATION OF ZINC AND BORON ON YIELD AND QUALITY OF COTTON(University of Agricultural Sciences GKVK, Bangalore, 13-12-12) SHIVAMURTI NAIK R, R; SUDHIR, KChemical analyses of one hundred surface soil samples (0-30 cm) were carried out to know the micronutrients status of soils of Chamarajanagar district and a field experiment was conducted to know the effect of levels and methods of application of zinc and boron on yield and quality of cotton in a micronutrient deficient soil. The study revealed the available N, P2O5 and K2O of soil ranged from 65.85 to 355.62, 7.39 to 57.48 and 218.41 to 447.84 kg ha-1 respectively. DTPA-extractable Fe, Zn, Mn and Cu ranged from 4.96 to 7.50 mg kg- 1, 0.06 to 0.81 mg kg-1, 0.66 to 5.65 mg kg-1, and 0.20 to 0.39 mg kg-1 respectively. The results of the field experiment laid out in a split plot design indicated significant response by the crop to the application of both the micronutrients. Among the different treatments, foliar spray of 200 g B ha-1 produced the highest number of bolls per plant (22.27), good opened bolls (20.13), boll weight (4.20 g) and seed cotton yield (26.69 q ha-1). Effect of foliar application of Zn and B either alone or in combination along with FYM at peak flowering and boll development stages in all levels produced significant response to cotton production than no FYM. However the quality parameters were not significantly influenced by either the method or levels of micronutrient application. Foliar application of 200 g B ha-1 resulted in the highest uptake of N, P2O5, K2O, Fe, Mn, Cu and B.ThesisItem Open Access EFFECT OF DIFFERENT LEVELS AND METHODS OF APPLICATION OF BORON WITH AND WITHOUT ZINC ON GROWTH AND YIELD OF FINGER MILLET(University of Agricultural Sciences GKVK, Bangalore, 19-07-13) CHANDRAKUMAR, M C; SUDHIR, KA field experiment was carried out in a soil deficient in boron and zinc at Zonal Agricultural Research Station, Mandya, to study the effect of different levels and methods of boron application with and without zinc on yield and uptake of nutrients by finger millet. The treatments consisted of application of 275 g and 550 g of borax to the crop through foliar spray with and without soil application of zinc sulphate @ 12.5 kg ha-1, soil application of 10 kg ha-1 and 15 kg ha-1 of borax with and without zinc sulphate @ 12.5 kg ha-1, only zinc sulphate @ 12.5 kg ha-1 and a control. The combined use of two nutrients indicated a synergistic effect on yield and uptake of many of the nutrients element. Its lower level (0.5 per cent foliar spray/soil application borax 10 kg ha-1) indicated a slight positive edge over the higher level (1 per cent foliar spray/soil application of borax15 kg ha-1) on both crop yield and uptake of all the nutrients. Hence, it is very clear from the results of the present study that the use of boron at levels greater than 0.5 per cent borax spray or 10 kg ha-1 soil application may lead to a decline in crop yield due to toxic effect. Use of 0.5 per cent borax spray along with 12.5 kg zinc sulphate proved to be ideal in finger millet in terms of increase in yield and minimizing the residual boron content in the soil wherever continuous boron application at high doses is advocated.ThesisItem Open Access EFFECT OF DIFFERENT SOURCES OF SILICON ON GROWTH AND YIELD OF MAIZE IN SOUTHERN DRY ZONE OF KARNATAKA(University of Agricultural Sciences GKVK, Bangalore, 19-11-13) VENKATARAJU; Prakash, N BAn investigation was conducted to study the effect of different sources of silicon on growth and yield of maize in southern dry zone of Karnataka. Field experiment was conducted at ZARS, V.C. Farm, Mandya during Kharif 2011, with 15 treatments and three replications using RCBD as a design. A greenhouse experiment was also conducted at GKVK, Bengaluru with seven treatments and three replications to know the uptake of silicon and other nutrients by using calcium silicate and wollastonite as silicon sources. In the field experiment, application of calcium silicate @ 2 t ha-1 + foliar silicic acid @ 4 ml L-1 + FYM resulted in better plant growth and nutrient uptake and also the grain and stover yield of maize. No remarkable change was recorded in pH of the post harvest soil. Calcium silicate application recorded highest concentration and uptake of silicon in grain and straw over other treatments. However, combined application of calcium silicate @ 2 t ha-1 + foliar silicic acid @ 4 ml L-1 recorded highest grain yield of 7700 kg ha-1 and stover yield of 8536 kg ha-1. Application of calcium silicate @ 2 t ha-1 + foliar silicic acid @ 4 ml L-1 recorded highest content and uptake of silicon along with other nutrients. In the green house experiment the treatment receiving wollastonite @ 2 t ha-1 has resulted in higher dry matter yield of maize. Wollastonite application @ 2 t ha-1 recorded higher silicon and other nutrients content and uptake in maize.ThesisItem Open Access FRACTIONS OF PHOSPHORUS, SULPHUR AND BORON IN SOIL UNDER LONG TERM FERTILIZER EXPERIMENTS OF FINGER MILLET-MAIZE AND RICE-COWPEA CROPPING SYSTEMS OF KARNATAKA(10-08-13) ERESH; GOWDA, R COngoing long term fertilizer experiments under finger millet-maize and rice-cow pea cropping systems at GKVK Bengaluru and VC Farm Mandya were selected to study the different fractions of phosphorus, sulphur and boron in soil. Besides the fractions, their available nutrient status was also studied. The results of the finger millet-maize cropping system indicated that application of chemical fertilizer in combination with FYM revealed that all the available nutrients were maintained. With respect to P fractions like Al-P, Fe-P, Occl-P and total-P were found to be higher in 150 % NPK applied treatment; however Ca-P was higher percent in treatment receiving 100 % NPK+FYM+Lime. Higher percent of available sulphur and its fractions were recorded in treatments receiving single super phosphate and lower availability and its fractions were noticed in T9-100%NPK-S and T7-100%N. Higher boron availability and its fractions were recorded in treatments receiving FYM along with chemical fertilizers. In rice-cow pea cropping system here also available nutrient status maintained in inorganic and FYM applied treatments .Higher phosphorus availability was recorded in treatment receiving STCR based fertilizer recommendation. Higher per cent of Al-P, Fe-P, Occl-P and total-P fractions were recorded in 100%NPK+Zn+S treatment. With respect to sulphur availability and its fractions 100%NPK+Zn+S recorded higher values. Available boron and its fractions were higher in FYM applied treatments compared to other treatments. Hence the application of recommended doses fertilizer in combination with FYM helps to better maintenance of soil health as well as available nutrient status of soil.