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Thesis

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2000 - 200584
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Subject: Soil Science and Agriculture Chemistry × End date: 2009 × Start date: 2000 × Type: Thesis × Thesis Type: M.Sc ×
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Now showing 1 - 9 of 84
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    ThesisItemOpen Access
    SOIL PHYSIOGRAPHIC RELATIONSHIP AND LAND USE / LAND COVER MAPPING IN KUMTA TALUK, UTTARA KANNADA DISTRICT, KARNATAKA
    (University of Agricultural Sciences, Dharwad, 2003) SHAMSUDHEEN, M; DASOG, G S
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    EFFECT OF FLY ASH AND BIOSOLIDS ON SOIL PROPERTIES, GROWTH AND YIELD OF COWPEA (Vigna unguiculata L.)
    (University of Agricultural Sciences, Dharwad, 2001) VASANTHA KUMAR, G B; YELEDHALLI, N A
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    EFFECT OF FLYASH AND FYM ON MICRONUTRIENTS (Fe,Mn,Zn and Cu) TRANSFORMATION IN SOIL UNDER SUBMERGED CONDITION
    (University of Agricultural Sciences, Dharwad, 2001) YOGESWARA, H.R.; YELEDHALLI, N.A.
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    A CASE STUDY ON SOIL AVAILABLE NUTRIENT STATUS AND PETIOLE NUTRIENT CONCENTRATION IN PAPAYA ORCHARDS OF NORTH KARNATAKA
    (University of Agricultural Sciences, Dharwad, 2001) MANOHAR GOUDA, S; UPPERI, S N
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    LONG TERM EFFECT OF INTEGRATED NUTRIENT MANAGEMENT ON COTTON YIELD AND SOIL PROPERTIES IN COTTON BASED CROPPING SYSTEM IN RAINFED VERTISOL
    (University of Agricultural Sciences, Dharwad, 2002) MOHAN KUMAR, G; SARANGAMATH, P A
    A long-term investigation was carried out to study the effect of application of organic manures viz., FYM, crop residues (cotton) and vermicompost in combination with different levels of fertilizers on cotton yield and soil properties in cotton-groundnut-rabi jowar rotational system at ARS, Dharwad. The experiment was initiated in 1997-98 and the observations recorded during the year 2001 -02 , which formed the basis of present study. Soil samples were collected treatment-wise from 1999-2000 to 2001 - 02 and analyzed for chemical, physical and biological properties. Application of FYM (10 t/ha) decreased bulk density (1.21 g/cc) of soil but increased maximum water holding capacity (74,67%), aggregate stability (78.62%) and infiltration rate (1.22 cm/hr) of soil. Soil organic carbon content was also increased from 0.97 to 1.01 per cent. FYM (10 t/ha) in combination with RDF (40:25:25 N, P2O5 and K2O) improved the available nutrient status of N, P K, Zn and Fe of soil2from cycle to cycle but pH and EC of soil were not significantly influenced. Application of 100 per cent RDF recorded higher uptake of N (40.61 kg/ha), P2O5 (18.11 kg/ha), K2O (36.70 kg/ha), Zn (56.16 g/ha) and Fe (156.9 g/ha) by crop and also recorded higher kapas yield (891 kg/ha) of cotton, which was 27 per cent over control. Higher bacteria, fungi and actinomycetes populations were recorded in the treatment receiving combined application of FYM (10 t/ha) and recommended level of chemical fertilizer. Economics of various treatment indicated higher net returns and B:C ratio (Rs. 1 3 5 4 /h a and 1.37, respectively) with RDF over 50 per cent RDF and control. So, application of FYM (10 t/ha) along with 100 per cent RDF helps in improving physical, chemical and biological properties of soil as well as Productivity of crop.
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    ThesisItemOpen Access
    CLAY MINERALOGY OF SOME ASSOCIATED RED AND BLACK SOILS OF NORTHERN KARNATAKA
    (University of Agricultural Sciences, Dharwad, 2002) JAGADEESHA, M B; BASAYARAJ, B
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    SOIL FERTILITY STATUS OF A PART OF GLBC COMMAND AREA USING GIS
    (University of Agricultural Sciences, Dharwad, 2002) BINITHA, N K; DASOG, G S
    The idea of optimizing the utilization of the land resource with intensification of agriculture has resulted either in the fast depletion of nutrients or occasionally in their accumulation especially noticed in command area. An attempt was made to assess the soil fertility status of a portion of GLBC command area (46029.9 ha) in relation to position of landscape was assessed. Two hundred and fourty two surface soil samples were collected at random from the study area lying between GLBC main canaJ and Ghataprabha river representing all physiographic positions of landscape. The pH of the soils was slightly to moderately alkaline (8.02 to 8.96) and EC at the surface ranged from 0.11 to 1.40 dS m-' and was slightly on the higher side in alluvial plains. Majority of the soils recorded medium to high OC content ranging from 0.34 to 1.33 per cent. The CaCOa content ranged from 5.13 to 11.55 per cent. The available nitrogen content ranged from 211.0 to 321.6 kg ha-' with in 19540 ha as low and 26490 ha as medium status. The available phosphorus content ranged from 12 to 38 kg ha-' with 11354 ha area recording medium and 34677 ha area as high in P status. The available potassium status was high in 40612 ha and medium in 5418 ha area ranging from 201 to 689 kg ha-'. The exchangeable Ca and Mg content of all the soils were high. The available sulphur content ranged from 17.5 to 53.5 kg ha-' with 12420 ha area recording low, 31563 ha medium and 2047 ha high in sulphur content. Due to intensive irrigated agriculture practiced in command area, nutrient status did not follow distinct trend with respect to physiographic units and crops grown.
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    ThesisItemOpen Access
    LONG TERM EFFECT OF INTEGRATED NUTRIENT MANAGEMENT IN SORGHUM BASED CROPPING SYSTEMS ON PHYSICO-CHEMICAL PROPERTIES OF VERTISOL
    (University of Agricultural Sciences, Dharwad, 2002) KULKARNI, VINAYAK DATTATRAY; DANDAGI, G N
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    EFFECT OF SOLID WASTES AND FERTILIZER LEVELS ON GROWTH, YIELD OF OKRA [Abelmoschus esculentus(L.) Moench] AND SOIL PROPERTIES
    (University of Agricultural Sciences, Dharwad, 2000) NAGARAJA, H; YELEDHALLI, N. A
    ABSTRACT NOT AVAILABLE