Year: 2019 | Month: December | Volume 6 | Issue 2
Growth, Yield and Quality of Summer Groundnut (Arachis hypogaea L.) as Affected by Graded Levels of Phosphorous
D. Prem Kumar*
Tanmoy Shankar and Sagar Maitra
DOI:10.30954/2347-9655.02.2019.7
Abstract:
India is the largest importer of vegetable oils in the world. Groundnut (Arachis hypogaea L.) is one of the important oilseeds of India. There is enough scope for improvement of productivity of oilseeds through adoption of scientific technologies and the crop responds well to added nutrients. Considering the importance of phosphorus among nutrients, a field experiment was carried out at the Bagusala Farm (23?39? N latitude and 87?42? E longitude) of M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemundi, Odisha on medium land with good irrigation and drainage facilities. The soil was a typical brown forest soil and sandy loam in texture having moderate water holding capacity. The percentage of sand, silt and clay were 71.5, 16.2 and 12.3, respectively. The experimental soil was with 0.73% organic carbon, 230 kg N ha-1, 32.1kg P2O5 ha-1 and 346 kg K2O ha-1. The treatments were comprised of seven levels of phosphorus namely, P0: control (no P2O5), P1: P2O5 @ 20 kg ha-1, P2: P2O5 @ 40 kg ha-1, P3: P2O5 @ 60 kg ha-1, P4: P2O5 @ 80 kg ha-1, P5: P2O5 @ 100 kg ha-1 and P6: P2O5 @ 120 kg ha-1,allotted randomly in 4 replications. The variety of groundnut was K6. The experimental results revealed that the treatment P5 (P2O5 @ 100 kg ha-1) recorded the maximum plant height, dry matter accumulation, leaf area index and crop growth rate. The highest pod, kernel, haulm and biological yields and harvest index were noted by P5 (P2O5 @ 100 kg ha-1). The higher doses of P2O5 application enhanced N, P and K content of kernel and haulm and crude protein content of kernel and established their superiority to control.
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