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University of Agricultural Sciences, Dharwad

The University of Agricultural Sciences, Dharwad was established on October 1, 1986. The University has 5 Colleges, 27 Research Stations, 6 Agriculture Extension Education Centers, 6 Krishi Vigyan Kendras and ATIC. The University has its jurisdiction over 7 districts namely Bagalkot, Belgaum, Bijapur, Dharwad, Gadag, Haveri, and Uttar Kannada in northern Karnataka. Greater diversity exists in soil types, climate, topography cropping and farming situations. The jurisdiction includes dry-farming to heavy rainfall and irrigated area. Important crops of the region include sorghum, cotton, rice, pulses, chilli, sugarcane, groundnut, sunflower, wheat, safflower etc. The region is also known for many horticultural crops. Considerable progress has been registered in the field of education, research and extension from this University.

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20131
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Subject: Soil Science × Author: Javed U. Mujawar ×
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    ThesisItemOpen Access
    Effect of organic and Inorganic Sources of Nutrients on soil Fertility and Yield of Brinjal (Solanum melongena L.)
    (UAS, Dharwad, 2013) Javed U. Mujawar; K. K. Math
    A field experiment was conducted to investigation “The effect of organic and inorganic sources of nutrients on soil fertility and yield of brinjal” during kharif 2010 at the MARS, UAS, Dharwad. The experiment was laid out in Typic Haplustert under irrigation in RBD with nine treatments replicating thrice. The treatments included were RDF with and without FYM, 100 and 75 per cent organics, INM (50% organics + 50% inorganic fertilizers) and liquid organics like beejamrutha, jeevamrutha and panchagavya alone and in combination with above treatments except RPP and RDF. The results revealed that the treatment with RDF+FYM recorded significantly higher fruit yield (5.24 t ha-1) and it was on par with RDF and organics and chemical fertilizers applied each at 50 per cent level either alone or with liquid organics. The uptake of nutrients like nitrogen, phosphorus, potassium and sulphur and micronutrients namely copper, iron, manganese and zinc increased significantly due to application of part of recommended nitrogen through organics. The available nitrogen, phosphorus, potassium and sulphur and DTPA extractable micronutrients namely copper, iron, manganese and zinc status of soil was significantly influenced by the application of chemical fertilizers along with organics and the maximum values were recorded in the treatment receiving RDF+FYM. Dehydrogenase enzyme activity in soil was higher in the treatments with FYM and vermicompost applied along with chemical fertilizers and the highest value was recorded in the treatment receiving RDF+FYM (40.90 ıg TPF/g soil/day). Thus, the study emphasizes that in brinjal cultivation, chemical fertilizers can be substituted with FYM and vermicompost without losing appreciable fruit yield. This also improves the soil fertility and quality of fruit in addition to saving 50 per cent cost on chemical fertilizers. The findings assume greater significance in the present context where in the development of multi-nutrients deficiency in soil and scaling up of the cost of chemical fertilizers severely limiting crop productivity.