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ThesisItem Open Access AGROTECHNIQUES TO ENHANCE KABULI CHICKPEA (Cicer arietinum L.) PRODUCTIVITY IN NORTHERN TRANSITIONAL ZONE OF KARNATAKA(University of Agricultural Sciences, Dharwad, 2003) MANSUR, CHIDANAND P; PALLED, Y BABSTRACT NOT AVAILABLEThesisItem Open Access INTEGRATED NUTRIENT MANAGEMENT IN RICE - SOYBEAN CROPPING SYSTEM AND MANAGEMENT OF LATE TRANSPLANTED RICE UNDER HILL ZONE(University of Agricultural Sciences, Dharwad, 2001) CHANNABASAPPA, K S; PRABHAKAR, A SABSTRACT NOT AVAILABLEThesisItem Open Access INTEGRATED NUTRIENT MANAGEMENT IN SUNFLOWER WHEAT SEQUENCE CROPPING IN NORTHERN TRANSITIONAL ZONE OF KARNATAKA(University of Agricultural Sciences, Dharwad, 2000) PALI, G P; HALIKATTI, S IABSTRACT NOT AVAILABLEThesisItem Open Access FERTIGATION STUDIES IN HYBRID TOMATO (Lycopersicon esculentum Mill)(University of Agricultural Sciences, Dharwad, 2001) SHANKARA HEBBAR, S; RAMACHANDRAPPA, B KABSTRACT NOT AVAILABLEThesisItem Open Access ALLELOPATHIC EFFECT OF TEAK AND CASUARINA ON THE PERFORMANCE OF GREENGRAM (Vigna radiata L.)(University of Agricultural Sciences, Dharwad, 2002) NEKAR, MAHANTESH M; HUNSHAL, C SField experiments were conducted during two crop seasons (1998-99 and 1999-2000 kharif) at farmers field to study the allelopathic effect of teak and casuarina on .the performance of greengram. The treatments consisted of six distances viz., 0-3, 3-6, 6-9, 9-12, 12-15 and 15-18 m (Ti to Te) at 3 m intervals from the tree row upto 18 m. In each interval, plot of 3 m x 8 m size were made. The T7 to T12 treatments consisted of cement rings (90 cm deep and 60 cm wide) inserted into the fields to a depth of 90 cm serially from Ti to Te at 3'-d, 6*, 9'h, I2'h, 15* and 18th m. Pot experiment was carried out after the field experiment to know the performance of various cereals, pulses and oilseeds to root and root + leaf leachates of casuarina, teak and eucalyptus. Under field conditions, teak and casuarina trees reduced the greengram emergence, growth and yield parameters ultimately affecting the grain yield upto a distance of 12 m and 9 m respectively. The lowest grain yield was noticed at 3m (481 and 489 kg/ha at teak and casuarina site respectively) from tree row and the yield gradually ameliorated with increase in distance and tree effect got nullified after 12 m and 9 m in teak and casuarina respectively. The yield levels with casuarina at 9-12 and 12-15 m were on par with that of 15-18 m (607 kg/ha) and 12-15 m greengram yield was on par with that of 15-18 m (604 kg/ha) in teak. The grain yield of greengram within the cement rings which did not significant amongst themselves and were on par with the yield recorded at 15-18m distance outside cement ring. In pot experiment, pulses were more adversely affected than cereals and oilseeds. Root + leaf leachate was detrimental than root leachate. Eucalyptus tree leachate has more adverse effect followed by teak and then casuarina on various cereals, pulses and oilseed crops.ThesisItem Open Access STUDIES ON PRODUCTION TECHNOLOGIES FOR MESTA [Hibiscus sabdariffa L.) IN MEDIUM BLACK SOILS OF NORTHERN DRY ZONE OF KARNATAKA(University of Agricultural Sciences, Dharwad, 2002) GUGGARI, A K; SHEELAVANTAR, M NThree field experiments were conducted at Regional Research Station, Bijapur, University of Agricultural Sciences, Dharwad with the objectives to find out optimum sowing time, plant population, nitrogen level and stage of harvest for higher yield and economic returns of mesta and identification of suitable crops and spatial arrangement for mesta based intercropping system during 1998-99 and 1999-2000. The experiment on effect of plant population and nitrogen on mesta consisted of four varieties (AS-73-CP-560, AMV-3, AMV-4 and Local), three plant populations (0.22, 0.33 and 0.66 million plants ha"1) and four nitrogen levels (0,30,60 and 90 kg N ha"1). In the second experiment on effect of date of sowing, stage of harvest and plant population, there were four dates of sowing (I F.N.of July, II F.N.of July, I F.N.of August and II F.N.of August), two stages of harvest (at 50% flowering and at maturity) and three plant populations (0.22, 0.33 and 0.66 million plants ha"1). Both the experiments were laid out in split- split plot design with three replications. The experiment on intecropping of mesta with millets at varying row proportions consisted of three millet intercrops (pearl millet, foxtail millet and finger millet) and four row proportions (1:2, 1:3, 2:4 and 1:5 ) along with their sole crops. The experiment was laid out in randomized block design with three replications. Fibre yield of mesta was significantly higher with AS-73-CP-560 (982 kg ha"1) compared to AMV-3 and Local (798 and 588 kg ha"1, respectively) but was on par with AMV-4. Similar trend was observed with respect to green matter and dry stalk yield ha"1. AS-73-CP-560, AMV-3 and AMV-4 were on par with each other in their seed yield (646, 612 and 636 kg ha'1, respectively) but significantly superior over local (214 kg ha"1). Planting of mesta at lower plant population (0.22 million ha"1) with 60 kg N ha"1 was found significantly superior in fibre and seed yields and in economic returns. Fibre yield, seed yield, green matter and dry stalk yields of mesta were significantly higher with sowing during I F.N. of July compared to later sowing dates. Harvesting the crop at maturity both for fibre and seed was more profitable compared to harvesting the crop at 50 per cent flowering. Intercropping of mesta + pearl millet at 1:2 row proportion gave significantly higher fiber equivalent yield (1507 kg ha"1) and net returns (Rs 5875 ha"1) followed by 1:3 row proportion of the same intercropping system (1499 kg ha"1 and Rs 5818 ha'1, respectively). However, benefit-cost ratio was higher with mesta + pearl millet intercropping at 1:3 row proportion row proportion (1.85).ThesisItem Open Access AGRONOMIC INVESTIGATION ON USE OF DISTILLERY EFFLUENT ON THE PERFORMANCE OF RABI MAIZE AND WHEAT(University of Agricultural Science, Dharwad, 2002) Sukanya, T S; Meli, S SABSTRACT NOT AVAILABLEThesisItem Open Access RESPONSE OF FOXTAIL MILLET (Setaria italica L.) TO TILLAGE PRACTICES, ORGANICS, NITROGEN LEVELS AND ITS PERFORMANCE IN THE INTERCROPPING SYSTEMS IN SHALLOW ALFISOLS(University of Agricultural Science, Dharwad, 2000) Basavarajappa, R; Prabhakar, A S"Investigations to study tlie ""Response of foxtail millet to tillage practices organics and nitrogen levels and its performance in the intercropping systems in Shallow alfisols"" were carried out during 1997-'98 and 1998-'99 at Agricultural Research Sifation, Hanumanatnatti. Among the different tillage practices, medium tillage and ridging recorded significantly higher grain yield (1307 kg ha-1) of foxtail millet grown in kharif which was 8.60, 17.21 and 27.38 per cent higher over medium tillage flat bed sowing, shallow tillage and ridging and shallow tillage with flat bed sowing, respectively. Increase in depth of tillage increased the growth and yield components and major nutrient's availability and uptake. Enriched FYM application @ 2.5 t ha-1 + Azospihilum @ 10.0 kg ha-1 recorded significantly higlier grain yield (1395 kg ha-1) which was 3.71 and 21.10 per cent higher over application oiGlyricidia @ 5.0 t ha-1 and enriched FYM alone, respectively and improved the nutrient uptake over other organics. Application of 60 kg N ha-1 recorded significantly higher grain yield (1407 kg ha-1) over 30 and 0 kg N ha-1. Medium tillage and ridging with enriched FYM + Azospihilum + 60 kg N ha-1 recorded significantly higher grain yield (2044 kg ha-1) followed by medium tillage and ridging witli Glyhcidia green manuring + 60 kg N ha-1 (1569 kg ha-1). Medium tillage and ridging with enriched FYM + Azospirillum + 60 kg N ha-1 recorded significantly higher production potential in tenns of foxtail millet equivalent yield, net returns and B:C ratio in foxtail millet-castor and foxtail millet-horsegram sequences. In intercropping system, foxtail millet grain yield was not significantly affected with the intercrop population of either 50 or 100 per cent. While, the yields of intercrops viz., pigeonpea, sesamum, cotton, castor and mesta were significantly higher at 100 per cent tlian 50 per cent population. Intercropping of foxtail millet + castor 100 per cent realized significantly higher yield advantage intenns of LER (1.49) and ALTER (1.282) over sole foxtail millet, llie net returns were significantly higher with intercropping of foxtail millet + pigeonpea 100 percent population (Rs. 21574 ha-1)."ThesisItem Open Access EFFECT OF GENOTYPES, SOWING TIME OF COTTON AND SOYBEAN INTERCROPPING IN CHILLI AND COTTON NOXED CROPPING SYSTEM(University of Agricultural Science, Dharwad, 2000) Lingaraju, B S; Itnal, C J"A field experiment was conducted to study the effect of genotypes, sowing time of cotton and interecropping of Soybean in Chilli+Cotton mixed cropping system during 1996 and 1997 at Main Research Station, University of Agricultural Sciences, Dharwad. The experiment comprised of two cotton genotypes, two sowing time of cotton, four cropping systems and six sole crops. In all there were 22 treatments including sole crops. The experiment was laid out in a Factorial RBD design with three replications. Across cotton sowing time and cropping systems, hirsutum genotype Abhadita recorded 7.4 per cent higher kapas yield over herhaceum genotype Jayadhar. Regardless of cotton genotypes and cropping systems, cotton sown early during July second fortnight recorded 32.2 per cent higher kapas yield over cotton sown late during August second fortnight. Irrespective of row proportions, intercropping of Soybean in Chilli+Cotton mixed cropping system resulted in a significant reduction of both Chilli and Cotton yield. The reduction in Chilli yield was 6.8, 44.5 and 10.7 per cent whereas, reduction in kapas yield was 8.3, 34.7 and 10.5 per cent with 1:1, 1:2 and 2:2 row proportions respectively. However reduction in chilli and cotton yield in intercropping system was better compensated by intercrop yield of soybean as seen in equivalent yield and monetary returns. Intercropping one row of soybean with chilli and early sown Abhadita cotton (G2T1C1) recorded significantly higher chilli equivalent yield (1508 kg ha-1) over chilli mixed with early planted Abhadita (1168 kg ha-1) or Jayadhar (1051 kg ha-1) cotton alone. Similarly, G2T]C] gave higher net returns (Rs. 33812 ha-1) compared to chilli mixed with early planted Abhadita (Rs. 24937 ha-1) or Jaydahar (Rs. 22306 ha-1) cotton. Among sole crops, chilli recorded significantly higher net returns (Rs. 19144 ha-1) compared to soybean (Rs. 17449 ha-1) and early sown Abhadita cotton (Rs. 11870 ha-1)."