Roots nodulation, yield and yield contributing parameters of mungbean cultivars as influenced by different Phosphorous level in Swat-Pakistan

Field experiment was carried out at agriculture extension demonstration plot Matta Swat Pakistan, in summer 2014. The study was conducted to evaluate the influence of different phosphorous levels on growth and yield of mungbean cultivars. The experiment was established in a randomized complete block design with three replications. Six levels of phosphorous (15.5 % P2O5) in the form of single super phosphate (SSP) (0, 20, 40, 60, 80 and 100 kg ha-1) and three cultivars of mungbean (SWAT-I, SWAT-II and NM-54) was used for this experiment. Application of phosphorous fertilizer was significant for all parameters. Plots treated with 80 kg P ha-1 produced maximum nodules plant-1 (25), seeds per pod (11), weight of 1000 seeds (40.2 g) seed yield kg ha-1 (1139) and harvest index (28.6%) as compared to the control plots, while seeds per pod, 1000 seeds weight, seed yield and harvest index % was statistically at par when plots treated with 100 kg P ha-1. The cultivar SWAT-I had the highest nodules per plant (21), seeds per pods-1 (11), weight of 1000 seeds (38.4 g), seed yield kg ha-1 (1030-1) and harvest index (28.2%) as compared to other sowed cultivars. It could be concluded from this investigation that cultivar SWAT-I treated with 80 kg P2O5 improved the productivity and roots nodulation as compared to other tested cultivars and therefore it is advisable for the general practice under the agro-climatic conditions of the Swat Valley.