Vol. 5 (6) : November-December 2014 issue
Green Farming Vol. 5 (6) : 1058-1061 ; November-December, 2014
Effect of different sources and levels of sulphur on yield and quality attributes and nutrient uptake by maize in an alfisol of Karnataka
G.J. ABHIRAMa1, Y. VISHWANATH SHETTYa2, B.C. DHANANJAYAa3*, M. DINESH KUMARb3 and T.S. VAGEESHa4
aDepartment of Soil Science & Agricultural Chemistry, bDepartment of Agronomy, College of Agriculture, University of Agricultural and Horticultural Sciences, Navile Abbalagere Post, Shimoga - 577 225 (Karnataka)
Designation : 1SRF, 2Assoc. Direct. of Res., 3Asstt. Prof. *(bcdkvk@gmail.com), 4Professor & Dean, 5Professor
Subject : Soil Science & Agric. Chemistry; Soil Health & Soil Conservation Engg.
Paper No. : P-1676
Total Pages : 4
Received : 5 March 2014
Revised accepted : 30 October 2014
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Citation :
G.J. ABHIRAM, Y. VISHWANATH SHETTY, B.C. DHANANJAYA, M. DINESH KUMAR and T.S. VAGEESH. 2014. Effect of different sources and levels of sulphur on yield and quality attributes and nutrient uptake by maize in an alfisol of Karnataka. Green Farming Vol. 5 (6) : 1058-1061 ; November-December, 2014
ABSTRACT
A field experiment was conducted at Zonal Agricultural Research Station, Navile, Shimoga, to study the effect of different levels (10, 20 and 30 kg ha-1) and sources of sulphur (elemental sulphur, ammonium sulphate and gypsum) on the productivity of maize. Among different sources and levels of S, 30 kg S ha-1 as ammonium sulphate recorded highest cob length (20.38cm), cob weight (1.34 kg), number of seeds per cob (645.16). Least yield parameters were observed in control. Highest grain yield of 74.80 q ha-1 was obtained with the treatment sulphur at 30 kg ha-1 as ammonium sulphate and it was on par with treatment sulphur at 30 kg ha-1 as gypsum (73.49 q ha-1) and sulphur at 30 kg ha-1 as elemental sulphur (71.51 q ha-1). The uptake of nutrients in maize grain increased due to application of different sources and levels of sulphur. S at 30 kg ha-1 as ammonium sulphate recorded significantly higher N, P, K and S uptake by grain (161.55, 77.65, 61.06 and 29.17 kg ha-1, respectively) compared to control and other treatments. Grain and stover yields recorded significant and positive correlation with N, P, K. Ca, Mg and S uptake by grain and stover.
Key words :
Maize, Nutrient uptake, Sulphur sources and levels, Yield & quality attributes.
