Single Cell Biology

Abstract

Outcome of Sulphur and Zinc on Yield Attributes of Hybrid Sunflower in an Alfisol of Tamiraparani Tract

V. R. Senthamizh Kumaran* and M. Paramasivan

In India, oil seed production is not available to meet domestic requirements. India has been facing a recurring shortage of edible oils for many years. Presently, about 23% of sunflower oil being consumed in India has to be imported. To improve our country sunflower production by proper fertilizer management and used sunflower hybrids in the production. This research was conducted to study the yield, seed quality and economics of hybrid sunflower variety CO₂ on alfisol of tambirabarani tract using a randomized complete block design replicated thrice with eight treatments in 2016-2017.

The experiment consisted of eight treatments viz. T₁-control, T₂-60:90:60 kg of NPK ha^-1+S at 25 kg ha^-1+ZnSO₄ at 25 kg ha^-1, T₃-60:90:60 kg of NPK ha^-1+S at 12.5 kg ha^-1+ZnSO₄ at 0.5% foliar spray, T₄-60:90:60 kg of NPK ha^-1+S at 25 kg ha^-1+ZnSO₄ at 0.5% foliar spray, T₅-60:90:60 kg of NPK ha^-1+S at 37.5 kg ha^-1+ZnSO₄ at 0.5% foliar spray, T₆-60:90:60 kg of NPK ha^-1+ZnSO₄ at 12.5 kg ha^-1+S at 0.2% foliar spray, T₇-60:90:60 kg of NPK ha^-1+ZnSO₄ at 25 kg ha^-1+S at 0.2% foliar spray and T₈-60:90:60 kg of NPK ha^-1+ZnSO₄ at 37.5 kg ha^-1+S at 0.2% foliar spray. Application of RDF as 60:90:60 kg of NPK ha^-1+S at 25 kg ha^-1+ZnSO₄ at 25 kg ha^-1 (T₂) produced significantly seed yield (2101 kg ha^-1), stover yield (6523 kg ha^-1), maximum oil content (40.4%), protein content (11.8%), net return (82,159 ha^-1) and B:C ratio. However, 60:90:60 kg of NPK ha^-1+ZnSO₄ at 37.5 kg ha^-1+S at 0.2% foliar spray (T₈) registered highest seed and stover yield, net return and B:C ratio. Hence, the above study concluded that application of recommended dose of fertilizer as 60:90:60 kg of NPK ha^-1 with S at 25 kg ha^-1+ZnSO₄ at 25 kg ha^-1 is found to be the best for getting optimum yield and maximum benefit cost ratio for sunflower in an alfisol of Tambiraparani tract.

Published Date: 2024-08-29; Received Date: 2020-07-31