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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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20071
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Subject: Soil Science and Agricultural Chemistry × Author: N.Mamatha ×
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    ThesisItemOpen Access
    Intergrated nitrogen management in maize (Zeamays L.) in a vertisol of malaprabha command area
    (UAS, Dharwad, 2007) N.Mamatha; H.T.Channal
    yield and certain quality parameters of cotton in vertisol, under irrigated condition during kharif 2006-07, at Main Agricultural Research Station, University of Agricultural Sciences, Dharwad. The experiment consisted nine treatments with three replications and was laid out in randomized block design. The results indicated that different levels of sulphur, iron, zinc and their combination significantly increased the seed cotton yield, ginning percentage and seed index. Among the sulphur levels (as factomphos), application of 50 kg S per ha, recorded the highest seed cotton yield (19.50 q/ha), ginning percentage (43.00%) and seed index (9.10) and were par with the 25 kg S per ha and was significantly superior over control. Among the iron levels (as FeSO4), application of 50 kg Fe per ha recorded the highest seed cotton yield (18.50 q/ha), ginning percentage (39.10%) and seed index (9.00) and was significantly higher over control. Among the levels of zinc (as ZnSO4) application of 50 kg Zn per ha, recorded the highest seed cotton yield (20.50 q/ha), ginning percentage (39.50%) and seed index (9.10) and on par with application of 25 kg per ha and was significantly superior over control. Combined application of sulphur, iron and zinc each at 50 kg per ha (T9) recorded the highest seed cotton yield (98.50 q/ha), ginning percentage (43.00%) and seed index (9.81) which were on par with treatment (T8) receiving sulphur, iron zinc each at 25 kg per ha and was significantly higher over rest of the treatments. The treatment T9 recorded the highest nutrient uptake (N, P, K, S, Fe and Zn) and on par with the treatment T8 and was significantly superior over rest of the treatments. Further, combined application of sulphur, iron and zinc each at 25 kg per ha recorded the highest B:C ratio of 2.51 and net returns of Rs.33,396 proved to be economically more feasible.