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ThesisItem Open Access WATER USE EFFICIENCY IN POMEGRANATE (Punica granatum L.) cv. JYOTHI AS INFLUENCED BY DRIP IRRIGATION AND POLYETHYLENE MULCH(University of Agricultural Sciences, Dharwad, 1999) JAGANATH, S; NARAYANA GOWDA, J VABSTRACT NOT AVAILABLEThesisItem Open Access STUDIES ON VEGETATIVE PROPAGATION OF MANGO (Mangifera indica L.)(University of Agricultural Sciences, Dharwad, 1999) HARISH, H L; MELANTA, K RABSTRACT NOT AVAILABLEThesisItem Open Access FERTIGATION STUDIES IN GERBERA (Gerbera jamesonii Hook.) UNDER LOW COST GREENHOUSE(University of Agricultural Sciences, Dharwad, 1999) SUJATHA, K; NARAYANA GOWDA, J VABSTRACT NOT AVAILABLEThesisItem Open Access STUDIES ON DIFFERENT MANAGEMENT PRACTICES OF THE SUNFLOWER CAPITULUMBORER, Heliothis armigera (HUBNER) (LEPIDOPTERA: NOCTUIDAE)(University of Agricultural Sciences, Dharwad, 1990) BASAVARAJA, G C; DEVARAJURS, K CABSTRACT NOT AVAILABLEThesisItem Open Access LAND SUITABILITY EVALUATION OF MAJOR SUGARCANE GROWING SOILS OF KARNATAKA(University of Agricultural Sciences, Dharwad, 1999) NAIDU, L G K; HUNSIGI, GURURAJABSTRACT NOT AVAILABLEThesisItem Open Access DEVELOPMENT OF BIO-INTENSIVE INTEGRATED MANAGEMENT STRATEGIES AGAINST ROOT-KNOT NEMATODE Meloidogyne incognita (KOFOID AND WHITE) CHIT WOOD INFECTING TOMATO(University of Agricultural Sciences, Dharwad, 1999) RAMASWAMY, S D; PARVATHAREDDY, PABSTRACT NOT AVAILABLEThesisItem Open Access APPLICATION METHODS OF VA MYCORRHIZAL INOCULUM FOR CROPS IMPORTANT IN AGRICULTURE, HORTICULTURE AND FORESTRY(University of Agricultural Sciences, Dharwad, 1999) G, MAMATHA; BAGYARAJ, D JABSTRACT NOT AVAILABLEThesisItem Open Access AN ECONOMIC ANALYSIS OF SILK REELING UNITS IN KARNATAKA(University of Agricultural Sciences, Dharwad, 1999) KERUTAGI, M G; RANGANATHA SASTRY, K N"Karnataka is leading in mulberry silk production. The focus of the study was on economic analysis of silk reeling units. Multistage sampling procedure was adopted and totally 250 samples were selected. Relevant data collected from primary' and secondary sources were analysed through tabular, cluster, orthogonal polynomial regression, log-linear regression, frontier function and decomposition techniques. The growth analysis of charka and cottage basins in Karnataka showed an increasing trend upto 1996, then onwards showed a declining trend. Charka and cottage basins in Bangalore and Kolar districts exhibited constant increasing trend. Mysore district showed a unique pattern of declining trend in the later part of 1990s. Renditta was 8.82, 9.57 and 9.02 kg in charka, cottage and multi-end basins respectively. The share of cocoon cost to the total cost was 85 percent in these systems. Sources of fuel used in reeling were neither eco-friendly nor cost-effective. Net returns per kg of silk reeled were Rs.47,21, Rs. 146.18 and Rs. 185.28 in these systems, respectively. Medium charkas (4-5/unit) and cottage basins (6-8/unit) were found optimum. The proportion of women labour used was more in all the systems. Labour employed per kg of silk reeled was 1.07, 1.45 and 1.34 man-days in charka, cottage and multi-end basins, respectively. The value addition (72.18%) in cottage basin reeUng over charkas was mainly due to technique of reeling (57.56%) and the remaining attributed for the use of inputs (14.62%). The package for introduction of silk reeling in new sericulture area suffers from lack of skilled labour, infrastructure, financial support and correct information about the programmes. The conditions under which children worked were most pathetic. Present laws and their efficiency of implementation have not solved the problem of child and women labour exploitation, hence needs the thorough investigation."ThesisItem Open Access SOIL, WATER AND WEED MANAGEMENT PRACTICES FOR DIRECT SEEDED LOWLAND RICE(University of Agricultural Sciences, Dharwad, 1976) RAMI REDDY, S; HUKKERI, S B"Investigations were carried out at the Indian Agricultural Research Institute, New Delhi during Kharif seasons of 1974 and 1975 with the object of obtaining comprehensive information on soil, water, and weed management practices for direct-seeded lowland rice grown on a sandy clay loam soil. The treatments comprising four methods of soil manipulations, two practices of water management and four methods of weed management were laid out in a split -plot design with soil water management practices in the main plots and weed management practices in the sub-plots and were replicated thrice. The four soil manipulation treatments were, ( 1 ) puddling once immediately before seeding, ( 2) puddling twice immediately before and 15 days earlier to seeding, (3) compaction of surface soil to a bulk density of 1.70 to 1,80 g/cm$ and (4) ordinary field preparation by ploughing. The two water management practices were, (1) continuous submergence (4-0 cm water from establishment to maturity) and (2) partial submergence (4-0 cm water only during critical stages of initial tillering and flowering and maintaining soil moisture at 0,15 bar tension at 15 cm s o i l depth during other stages). The four weed management practices were, ( 1 ) no weeding, ( 2) manual weeding (twice), (3) pre-emergence application of butachlor at 20 kg/ha. and (4) post-emergence application of propanil at 2 1/ha. The study revealed that puddling twice at 15 days interval remarkably increased the growth and yield of rice, reduced the weed infestation, increased the N, P and K uptake by crop, reduced the hydraulic conductivity of soil and increased the water use efficiency of irrigation water. Puddling once and compaction were identical in their effects and were superior to ordinary ploughing but very much Inferior to puddling twice in respect of growth and yield of crop. Puddling twice proved to be the most profitable practice. Continuous submergence increased the yield marginally (about 7 percent) over that of partial submergence, but the latter practice required 37 percent less irrigation water and hence resulted in high water use efficiency. Continuous submergence resulted in a loss while partial submergence was an economical practice. The weeds were effectively controlled by manual weeding under all the soil manipulation practices while butachlor and propanil were found e f fe c t iv e under puddling twice and compaction treatments where the weed growth Was already reduced by about 85 to 87 percent. Manual weeding resulted in maximum growth and yield of rice. Weeds in no weeding treatment decreased the yield by 30 percent as compared with manual weeding and accounted for nearly 50 percent of nutrient depletion. Water use efficiency of irrigation water was increased by about 30 percent due to manual weeding over that of no weeding. The most remunerative cultural practices for direct seeded rice under Delhi conditions were found to be puddling twice with partial submergence followed by either manual weeding or use of herbicides."