Standardization of potash levels and apportioning time in summer groundnut under drip irrigation

A field experiment on Standardization of potash levels and apportioning time in summer groundnut under drip irrigation was carried out at All India Co-ordinated Research Project on Summer Groundnut, M.P.K.V., Rahuri. The pod and hualm yield were significantly increased under groundnut crop grown with potash level 30 kg K₂O ha⁻¹ as compared to other potash levels. Pod weight plant⁻¹ and hualm weight plant⁻¹ is higher in 30 kg K₂O ha⁻¹ potash level compared to 10 and 20 kg K₂O ha⁻¹potash level. The potash level 20 kg K₂O ha⁻¹ was at par with 30 kg K₂O ha⁻¹ for dry pod weight plant⁻¹. The number of pods plant⁻¹, dry pod yield kg ha⁻¹, kernel yield kg ha⁻¹ and dry haulm yield kg ha⁻¹ were significantly increased in potash apportioning time at 75 DAS with 10 splits. The combination of 30 kg K₂O ha⁻¹ and fertigation at 75 DAS (10 splits) produced significantly higher pod yield than other combinations.