International Journal of Plant & Soil Science

Aims: To study the effect of farmyard manure and potassium on nutrient content and quality of kharif groundnut in loamy sand.

Study Design: Factorial Randomized Block Design.

Place and Duration of Study: The field experiment was carried out during kharif season at Castor Mustard Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar. Gujarat

Methodology: The field trial was laid out in Factorial Randomized Block Design with three replications, and the treatments comprised of two levels of farmyard manure (F₁: 0 t ha^-1 and F_2:  5 t ha^-1), three levels of potassium (K₁: 20 kg K₂O ha^-1, K₂: 40 kg K₂O ha^-1 and K₃: 60 kg K₂O ha^-1) and two levels of potassium mobilizing bacteria (B₁: With KMB and B₂: Without KMB).

Results: The results showed that significantly higher oil (50.24 %) and protein (23.90 %) content of groundnut was observed with FYM application at 5 t ha^-1 (F₂). Moreover, significantly higher content of nitrogen (3.39 %), phosphorus (0.46 %) and potassium (0.61 %) in kernel and in haulm nitrogen (1.49 %), phosphorus (0.20 %), potassium (0.66 %) were observed with application of 5 t FYM ha^-1. Among three levels of potassium, K₃ (60 kg K₂O ha^-1) recorded significantly maximum oil (50.27 %) and protein (24.19 %) contents, P (0.45 %) and K (0.60 %) content in kernel and N (1.49 %), K (0.66 %) content in haulm. Oil (50.06 %) and protein (23.93 %) contents found positive with KMB application over without KMB.