Abstract
A field experiment was conducted at the Cholistan Farm of Arid Zone Research Institute, Bahawalpur during Rabi 2005-2006, to observe the effect of different levels of Phosphorus on the growth and yield of Ispaghol. Five different levels of Phosphorus (Tripple Super Phosphate, TSP) i.e. 25, 50, 75, 100 kg ha-1 and Control were tried. Seed yield varied significantly in the concentration of phosphorus applied. Out of all the treatments applied, 100 kg ha-1 ‘P’ showed excellent results with the seed yield of 915.5 kg ha-1 and statistically the lowest seed yield of 591.0 kg ha-1 was obtained in case of control (in which ‘P’ fertilizer was not applied). It is believed that such an increase in the yield was mainly due to the factors like an increase in the tillers per plant, capsules per plant and seed weight.
