Thumbnail Image

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.

Browse

20097
Reset filters
Subject: Soil Science and Agriculture Chemistry × End date: 2009 × Start date: 2009 × Thesis Type: Ph.D ×
Reset filters

Search Results

Now showing 1 - 7 of 7
  • Thumbnail Image
    ThesisItemOpen Access
    STUDIES ON SOIL PROPERTIES AND CARBON SEQUESTRATION UNDER DIFFERENT FOREST TREE PLANTATIONS
    (University of Agricultural Sciences GKVK, Bangalore, 2009-07-02) PARASHURAM CHANDRAVANSHI; Dr.(Mrs.) L. SUSEELA DEVI
    No Abstract
  • Thumbnail Image
    ThesisItemOpen Access
    SOIL AND NUTRIENT MANAGEMENT STUDIES IN Coleus vettiveroides. Jacob
    (University of Agricultural Sciences GKVK, Bangalore, 2009-09-19) MAMATHA, B.; SHIVANANDA, T. N.
    Four field trials and four pot culture trials were conducted during 2007-2008 and 2008-2009 at Indian Institute of Horticultural Research, Bangalore for soil and nutrient management studies in Coleus vettiveroides. Application of 100:50:50 NPK kg ha-1 recorded significantly higher plant growth (50.86 cm), biomass accumulation (32.75 t ha-1) , and nutrient uptake (uptake of 50.60 kg N, 7.21 kg P, 126.04 kg K ha-1) of C. vettiveroides at 116 days after planting (DAP). C. vettiveroides plants grown in 18 inch diameter with 30 inch length PVC column produced significantly higher total root yield (315.2 g plant-1) and biomass accumulation (3597.2 g plant-1) at 121 DAP. Growth media comprising of sand and soil mixed in equal proportion (100 kg) added with 0.5 kg Farm Yard Manure (FYM) recorded significantly higher biomass accumulation (782.34 g plant-1 and 1653 g plant-1) of C. vettiveroides in cement pots and PVC columns respectively at 135 DAP. Application of FYM (282.80 g plant-1) or inorganic fertilizer (312.73 g plant-1) along with bio-fertilizer recorded higher biomass accumulation of C. vettiveroides as compared with sole application of FYM (210.49 g plant-1) or inorganic fertilizer (261.56 g plant-1) at 130 DAP. Significantly higher root yield (3.16 t ha-1), biomass accumulation (49.66 t ha-1) and nutrient uptake (uptake of 50.13 kg N, 7.75 kg P, 119.11 kg K ha-1) of C. vettiveroides recorded with application of recommended FYM (10 t ha-1) + recommended NPK (100:50:50 NPK kg ha-1) at 140 DAP. Application of Mucuna mulch 10 t ha-1 recorded significantly higher plant growth (51.74 cm) and application of FYM mulch 10 t ha-1 recorded higher biomass accumulation (33.37 t ha-1) and nutrient uptake (uptake of 49.30 kg N, 9.41 kg P, 148.74 kg K ha-1) of C. vettiveroides at 139 DAP. The different chemical constituents identified in oil of root of C. vettiveroides are hydrocarbons (ß-Himachalene etc), oxygenated compounds like alcohols (Vellerdiol, Isothujol etc), aldehydes (ß-Cyclocitral, etc), esters (Sabinyl acetate, etc), ketones (ß-Ionone, Traseolide etc).
  • Thumbnail Image
    ThesisItemOpen Access
    CHARACTERIZATION AND CLASSIFICATION OF SALT AFFECTED SOILS OF PART OF BELLARY TALUK IN BELLARY DISTRICT USING REMOTE SENSING TECHNIQUES
    (University of Agricultural Sciences GKVK, Bangalore, 2009-07-21) KUMARI ROOPA, G.; Natarajan, A.
    A study was made to characterize and classify the salt-affected soils occurring in Tungabhadra Left Bank Command, Karnataka using remote sensing techniques. A total of 15 pedons were excavated to a depth of around 2 meters and characterized for their morphological, physical, chemical and fertility parameters. The pH of the soils varied from 8.0 to 9.9 and EC ranged from 0.19 to 30.10 d Sm-1. The organic carbon of the soil was very low, while CaCO3 varied from 2.3 to 18.8 per cent and was increased with the depth in all the profiles. Soils had high CEC varying from 29.6 to 82.4 c mol (P+) kg-1, of which exchangeable calcium plus magnesium constituted less than 50 per cent, with sodium being the dominant. The ESP values in the soils varied from 8.54 to 60.30, the concentration of bicarbonates in soil solution was smaller and carbonates were found only in traces. The possibility of movement of sodium salts to surface layers through capillary rise of water, appreciable amounts of sulphates capable of forming ion pairs in soil solution and under estimation of sodicity hazard through U S S L Staff (1954) equation, indicated the chances of conversion of these soils, mostly saline-sodic, to sodic soils. The land use is preferentially getting changed from sorghum and red gram to corn and red gram with a catch crop of coriander in the first instance; then to paddy alone in two seasons and finally some areas rendered unsuitable for any agricultural purpose. From the physical and chemical characteristic of the soils studied, it has been found that the soils of the area are either saline or sodic in the surface horizons (0-40cm). However, in the subsoil horizons i.e. below the rooting zone, the severity of salinity/ sodicity is decreasing with depth. This suggests that in the course of irrigation, if injudicious, subsoil salts may come up to the surface horizons and may impair crop growth adversely. In addition if the quality of irrigation water is poor it may further aggravate the situation. So it is suggested that in the command area, irrigation water needs to be released judiciously in a controlled manner from canal with enough provision for proper drainage wherever necessary.
  • Thumbnail Image
    ThesisItemOpen Access
    STUDIES ON THE EFFECT OF ANTHROPOGENIC LIQUID WASTE (ALW) ON SOIL PROPERTIES AND CROP GROWTH
    (University of Agricultural Sciences GKVK, Bangalore, 2009-01-02) SRIDEVI, G.; SRINIVASAMURTHY, C. A.
    Anthropogenic liquid waste collected from Ecosan toilet, was slightly alkaline in reaction with high soluble salts and nitrogen, appreciable quantities of P, K, secondary and micronutrients but low in organic load. In the incubation experiment, there was a slight increase in pH but significantly higher EC of soil receiving undiluted ALW than other treatments. The organic carbon, N and P content was higher in undiluted ALW treatment than others. The incubation period advances a significant reduction was observed irrespective of treatments. The treatments did not have considerable effect on potassium, secondary and micronutrients content of soil. In the field experiment with maize crop, the pH and EC of the soil were significantly influenced by different treatments. The organic carbon content was found to be higher in RDN through ALW (in 6 splits irrigations) + gypsum than other treatments. The available N,P, K, Ca, Mg and micronutrients showed a progressive decline with the advancement of crop growth, though marked differences were not observed due to ALW treatments except RDN through chemical fertilizers. The highest grain and stover yield of maize was recorded in RDN through ALW (in 6 splits irrigation) + gypsum. In addition to improved sensory parameters and quality of maize, the highest C: B ratio was registered in ALW treatments. In another experiment with banana crop RDN through ALW + gypsum had a pronounced effect on banana yield compared to other treatments. ALW application had no harmful effect on chemical properties of soil at harvest stage of crop. The highest C: B ratio was registered in anthropogenic liquid waste treatments. In pot experiment with radish crop, the highest EC value was recorded in 3:1 dilution (ALW: Water) applied in 2 splits compared to control but no significant difference was observed with respect to other nutrients. The highest available nutrients N, P, K, Ca, Mg content in soil at harvest stage was registered in 3:1 (ALW: Water) applied in 2 splits. Highest number of leaves, plant height , major nutrients content in leaves and root , root yield and root diameter were observed in 3: 1 (ALW: Water) applied in 2 splits compared to RDF and control. The biosand filtered anthropogenic liquid waste and the produce obtained from experiments were found to be free from Escherichia coli and Leptospira interogans.
  • Thumbnail Image
    ThesisItemOpen Access
    NUTRIENTS DYNAMICS IN SOIL UNDER GINGER – PADDY LAND USE COVER
    (University of Agricultural Sciences GKVK, Bangalore, 2009-03-13) THIPPESHAPPA, G. N.; CHIDANANDAPPA, H. M.
    An investigation was carried out to study the effect of fertilizers on ginger productivity, nutrient dynamics and transformations in soil and to assess the impact of ginger cultivation on the productivity of succeeding paddy crop and nutrients availability in soil. The results revealed that significantly higher growth and fresh yield of ginger rhizome (38797 kg ha-1) was obtained due to the application of higher dose of fertilizer at the rate of N100P75K125 kg ha-1. The rhizome recorded significantly higher and maximum content and uptake of K (244.29 kg ha-1), N (99.40 kg ha-1) and P (24.69 kg ha-1) followed by Ca, Mg and S and micronutrients uptake compare to shoot ant root, similarly higher oleoresin (9.68%) and crude fibre (5.58%) content in rhizome was recorded due to the application of N100P75K125 kg ha-1at harvest stage. Significant depletion of total and available N, K, Ca, Mg, S and micronutrients in soil below their initial level was noticed due to application of N100P75K125 kg ha-1 after harvest of ginger. On the contrary gradual and significant build up of available P status in soil was noticed with crop maturity and harvest stage. Further, at a given level of N and P, significant increase in yield and uptake of nutrients and significant depletion of nutrients in soil was noticed with increase in level of K application. The applied P was transformed in to dominant fraction of Fe-P followed by Al-P, RS-P, Ca-P, Sal-P and Occl-P, while soil K fraction was transformed in to more of Lattice-K followed by Non exch-k, exch-K and WS-K. With regard to performance of paddy after ginger, significantly higher residual paddy grain (6785 kg ha-1) and straw yield (9092 kg ha-1) and accordingly significantly higher content and uptake of macro and micro nutrients were registered due to the residual treatment supplied with N100P75K50 compared to other treatments. Significant decrease and lower status of both total and available N, K, Ca, Mg, and S and micronutrients in soil after harvest of paddy was observed except the total and available P status which accumulated more in the soil even after harvest of paddy.
  • Thumbnail Image
    ThesisItemOpen Access
    UTILIZATION OF DISTILLERY SPENTWASH FOR RECLAMATION OF SODIC SOIL AND FERTIIRRIGATION STUDIES IN RICE
    (University of Agricultural Sciences GKVK, Bangalore, 2009-09-22) BHAGYA LAKSHMI, T.; Srinivasamurthy, C. A.
    The raw distillery spentwash samples from M/s Chamundeshwari Distilleries Private Limited, K.M.Doddi, Maddur Taluk, Mandya district revealed that it was highly acidic (pH 4.11), with the electrical conductivity of 17.70 dS m-1. The concentration of nitrogen, phosphorus and potassium were 0.19, 0.03, and 0.88 per cent respectively and also has good amount of calcium and magnesium content of 2600 and 1700 mg L-1 respectively. In the green house experiment I, raw spentwash application @5.0 lakh liters ha-1 significantly reduced the pH, exchangeable sodium and ESP of soil at 30 and 60 days after application and the reduction was marginal there after upto 120 days. Application of gypsum @ 100% GR had similar effect in reducing the soil pH and ESP as that with raw spentwash application @ 2.5 lakh liters ha-1. In the field experiment highest grain and straw yield and nutrient uptake were recorded in raw spentwash @ 5.0 lakh liters ha-1 and 7.5 lakh liter ha-1, gypsum amended plots and control recorded lowest yield. Reduction in soil pH ,exchangeable sodium and ESP was maximum in plots receiving 5.0 lakh liters ha-1 followed by 7.5 lakh liters ha-1 and highest exchangeable calcium and magnesium content was recorded in plots receiving 5.0 lakh liters ha-1 followed by 7.5 lakh liters ha-1 which was significantly superior over plots receiving gypsum and control. In the green house ferti-irrigation experiment II, highest yield and nutrient uptake were noticed with application of DSW 150% RDN (in 33% in each irrigation) followed by 150% N through urea in (33% in each irrigation) and RDF (NPK) + FYM. In the field experiment II ferti-irrigation of primary spentwash on reclaimed sodic soil highest grain, straw yield and nutrient uptake were recorded in RSW @ 100% GR+100% RDN through SW (3splits) and lowest was recorded in T1 which received gypsum @50% GR + Recommended NPK. Reduction in soil pH, sodium and ESP was maximum in T9 (RSW @ 100% GR+100% RDN through SW (3splits)) and minimum in T1 (Gypsum@50% GR+ Rec.NPK).
  • Thumbnail Image
    ThesisItemOpen Access
    Characterization And Classification Of Salt Affected Soils Of Part Of Bellary Taluk In Bellary District Using Remote Sensing Techniques
    (University Of Agricultural Sciences; Bangalore, 2009) Kumari Roopa G.; Natarajan A.