Effect of prom, sulphur and iron on growth, yield and quality of groundnut

A field experiment was conducted at Agronomy Instructional Farm, Department of Agronomy, Chimanbhai Patel College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar to study the effect of PROM, sulphur and iron on growth yield and quality of groundnut during two consecutive kharif season of the year 2022 and 2023. The pooled results indicated that an application of 375 kg PROM/ha (P3) and 37.5 kg sulphur/ha (S3) recorded significantly higher growth, yield attributes and yield parameters viz., plant height, number of root nodules, fresh and dry weight of root nodules, number of pods and filled pods per plant, pod and haulm yield of groundnut. Furthermore, quality parameters such as oil content, oil yield, protein content and protein yield of kernel were also significantly improved at these levels compared to lower doses. Regarding the iron levels, the highest application rate of 6.0 kg iron/ha (Fe3) resulted in significantly increased yield attributes and yield viz., number of pods and filled pods per plant, pod and haulm yields of kharif groundnut; quality parameters viz., oil content, protein content and protein yield of kernel as compare to lower iron levels.