Optimization of tillage and fertilizers for productive and profitable sunflower in paddy fallows of deep Vertisols of Karnataka


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Optimization of tillage and fertilizers for productive and profitable sunflower in paddy fallows of deep Vertisols of Karnataka

Authors

  • M R UMESH AICRP on Sunflower, University of Agricultural Sciences, Raichur-584 104, Karnataka
  • U K SHANWAD AICRP on Sunflower, University of Agricultural Sciences, Raichur-584 104, Karnataka
  • VIKAS V KULKARNI AICRP on Sunflower, University of Agricultural Sciences, Raichur-584 104, Karnataka
  • N ANANDA AICRP on Sunflower, University of Agricultural Sciences, Raichur-584 104, Karnataka
  • N VIJAYKUMAR AICRP on Sunflower, University of Agricultural Sciences, Raichur-584 104, Karnataka
  • GHANTE AICRP on Sunflower, University of Agricultural Sciences, Raichur-584 104, Karnataka
  • POORNIMA AICRP on Sunflower, University of Agricultural Sciences, Raichur-584 104, Karnataka
  • Y M RAMESH AICRP on Sunflower, University of Agricultural Sciences, Raichur-584 104, Karnataka

https://doi.org/10.56739/jor.v37iSpecialissue.139874

Keywords:

Conventional tillage, Minimum tillage, Sunflower, Zero tillage

Abstract

Study was conducted on deep Vertisols to evaluate the influence of tillage and fertilizer levels on performance of sunflower hybrids in paddy fallows. Sunflower hybrids were grown in conventional-till (CT), Minimum-till (MT), Reduced-till (RT) and zero-till (ZT) with graded fertilization. Averaged across fertilizer rates, cultivars, and years, sunflower seed yields were greater with CT (1477 kg/ha) than with MT, RT and ZT. Graded fertilizers at 150% RDF (1424 kg/ha) increased grain yield over RDF and reduced level at 75% RDF but varied over years. Economic returns also higher in CT along with graded fertilizers for RSFH-1887. Results indicate sunflower can be grown successfully in paddy fallows with CT and MT and graded fertilization in the Vertisols.

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References

M R UMESH

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Submitted

2023-07-27

Published

2020-03-12

How to Cite

M R UMESH, U K SHANWAD, VIKAS V KULKARNI, N ANANDA, N VIJAYKUMAR, GHANTE, POORNIMA, & Y M RAMESH. (2020). Optimization of tillage and fertilizers for productive and profitable sunflower in paddy fallows of deep Vertisols of Karnataka: Optimization of tillage and fertilizers for productive and profitable sunflower in paddy fallows of deep Vertisols of Karnataka. Journal of Oilseeds Research, 37(Specialissue). https://doi.org/10.56739/jor.v37iSpecialissue.139874