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VOL. 6, ISSUE 5 (2021)
Effect of sulphur on availability of N, P, K and S in sunflower
Authors
C Ravikumar, M Ganapathy, A Karthikeyan, G B Sudhagar Rao, P Senthilvalavan, R Manivannan
Abstract
Experimental trials were conducted during two consecutive seasons on 2015-16 at Experimental Farm, Annamalai University, Annamalai Nagar, Tamil Nadu, India to evaluate the response of different sources and levels of sulphur on hybrid sunflower (Helianthus annuus L.). The experiment comprised ten treatments includes RDF, RDF combines with three sources and levels of sulphur Viz., elemental sulphur, gypsum and pyrite with each applied at three levels such as 15, 30 and 45 kg S ha-1. The experiments were laid out in randomized block design and replicated thrice. Among the treatment combinations, pyrite @ 45 kg ha-1 with RDF (T10) found to be promising with increased available nutrients of N, P, K and S over RDF alone during both the period of experimental study. Application of RDF + Sulphur @ 45 kg ha-1 through elemental sulphur enhanced the availability of nutrients and eventually increased the nutrient uptake of N, S, P and K and thereby decreased the availability pool of N, P, K and S in hybrid sunflower.
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Pages:1194-1195
How to cite this article:
C Ravikumar, M Ganapathy, A Karthikeyan, G B Sudhagar Rao, P Senthilvalavan, R Manivannan "Effect of sulphur on availability of N, P, K and S in sunflower ". International Journal of Botany Studies, Vol 6, Issue 5, 2021, Pages 1194-1195
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