Browsing by Author "IRFAN, M. M."
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ThesisItem Open Access CROP DIVERSIFICATION IN MAIZE BASED INTERCROPPING SYSTEM FOR SUSTAINABLE MAIZE PRODUCTION IN SOUTHERN TRANSITION ZONE OF KARNATAKA(University of Agricultural & Horticultural Sciences, Shivamogga, 2020-02-10) IRFAN, M. M.; Dr. H. K. VEERANNA; Dr. G. B. SHASHIDHARAField experiments were conducted during Kharif season of 2017 and 2018 at Bavikere, UAHS, Shivamogga. The first experiment was laid out with maize + pole bean paired row intercropping system accommodating 100 per cent population of both the component crops as additive series. Experimental design adopted was RCBD with three replications and seven treatments consisting 50, 75, 100, 125 and 150 per cent RDF of maize and pole bean to both the component crops tested against RDF of maize and pole bean applied uniformly to both the crops. Among different fertilizer levels tested, application of 150 (244.50:225:150 N, P and K kg ha-1) per cent RDF of maize and pole bean applied to both the component crops recorded significantly higher maize grain (75.21 q ha-1), stover (91.88 q ha-1), cumulative pole bean (56.81 q ha-1) and maize equivalent (149.77 q ha-1) yield over 75 and 50 per cent RDF, but found on par with application of 125 and 100 per cent RDF of maize and pole bean applied to both the crops. The plots receiving 100 and 125 per cent RDF recorded higher B:C of 2.46 and 2.38, respectively. Feasibility of second intercrop in maize + pole bean intercropping system was studied in second experiment with seven treatments replicated thrice under RCBD design. Intercropping system included hebbal avare, cowpea, soybean, green gram, black gram and french bean as second intercrop. Inclusion of cowpea recorded significant improvement in maize grain yield by 11.36 and maize equivalent yield by 16.22 per cent while total weed density and weed dry weight at different stages of crop were significantly lesser compared to maize + pole bean intercropping system. The above combination of crop recorded significant improvement in available nitrogen (347.01 kg ha-1), phosphorus (52.56 kg ha-1) and potassium (289.14 kg ha-1) in soil after crop harvest. Further, same treatment exhibited higher energy use efficiency, energy productivity and net energy.ThesisItem Open Access GROWTH, PRODUCTIVITY AND DISEASE INCIDENCE OF POTATO (Solanum tuberosum L.) AS INFLUENCED BY NITROGEN, POTASSIUM LEVELS AND MICRONUTRIENTS(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2015-07-10) IRFAN, M. M.; Jayaramaiah, RA field experiment was conducted during Kharif 2014 at College of Agriculture, Hassan, University of Agricultural Sciences, Bengaluru to study the effect of different levels of nitrogen , potassium and micronutrients on growth, yield, quality, nutrient uptake and economics of potato in red sandy loam soil. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications and twelve treatment combinations . The investigation revealed that, 125 % recommended N and K + 0.5 % ZnSO4 * + 0.2 % Borax* @ 45 DAP recorded significantly higher plant height (68 cm), number of shoots (4.2 plant-1), number of leaves (88 plant-1), total dry matter production (65 g plant-1) and late blight incidence and severity recorded (9 %) 75 DAP and tuber weight (279.5 g plant-1), number of tubers (4.9 plant-1), tuber yield (23.3 t ha-1), protein content (13.9 %) and nutrient uptake (104.7, 36.4 and 103.7 kg N, P2O5 and K2O ha-1) at harvest. However, it was on par with 75 % recommended N and K + 0.5 % ZnSO4 * + 0.2 % Borax* @ 45 DAP. Higher net returns ( .156049 ha-1) and B:C ratio (3.4) was recorded in 75 % recommended N and K + 0.5 % ZnSO4 * + 0.2 % Borax* @ 45 DAP.