Vol. 6, Issue 2 (2018)
Effect of sources, levels and methods of application of potassium on yield, quality and nutrients concentration in index leaves of groundnut
Author(s): Ummesalma Sanadi and KK Math
Abstract: A field experiment was conducted during kharif, 2016 at the Main Agricultural Research Station, Farm, University of Agricultural Sciences, Dharwad. The experiment was laid with twelve treatments replicated thrice in Randomized Block Design. Pod yield in groundnut was not significantly influenced by different potassium nutrition treatments. However, split application of 150 per cent RDK, half as basal and half at 30 DAS through muriate of potash with 2 per cent foliar spray of potassium sulphate at 60 DAS recorded highest pod yield (3,617 kg ha-1) closely followed by basal application of 150 per cent RDK along with 2 per cent foliar spray of potassium sulphate (3,574 kg ha-1). Split application of 150 per cent RDK through MOP plus 2 per cent foliar spray of SOP at 60 DAS significantly enhanced the oil (47.84 %) and protein (37.98 %) contents in kernel with 6.07 and 6.89 per cent increase, respectively over control. Major nutrients concentration in the index leaves of groundnut did not vary significantly due to split application of potassium. Foliar application of potassium sulphate either at 1.0 or 2.0 per cent concentration significantly increased their concentration in the index leaves of groundnut. The pod yield and quality showed a significant positive correlation with the nutrient concentrations (N, P, K and S) in index leaves before and after foliar application of SOP.
Pages: 1880-1884 | 443 Views 21 Downloads
How to cite this article:
Ummesalma Sanadi, KK Math. Effect of sources, levels and methods of application of potassium on yield, quality and nutrients concentration in index leaves of groundnut. Int J Chem Stud 2018;6(2):1880-1884.