Effect of Phosphorus and Sulfur on the Yield and Nutrient Uptake of Maize
Journal Title: International Journal of Farming and Allied Sciences - Year 2015, Vol 4, Issue 3
Abstract
A field experiment was conducted at Malakandher Research Farm, The University Agriculture, Peshawar-Pakistan during kharif season 2011, to study the effect of varying levels of phosphorus and sulfur on the yield and nutrient uptake of maize. The experiment was laid out in RCB design with three replications. Phosphorus was applied at the rate 60, 90 and 120 kg ha-1 in combination with varying sulfur level viz. 45, 60 and 75 kg ha-1 as ammonium sulfate along with control. The results revealed that all treatments significantly increased yield and yield parameters over control and the maximum biomass (both fresh and dry matter yield) was achieved when P and S were applied at the rate of 90 and 60 kg ha-1 respectively whereas higher values of 1000 grain weight (248 g) and grain yield (2414 kg ha-1) was obtained in plots treated with 120 kg + 45 kg ha-1 P and S, respectively. The minimum yield and 1000 grain weight was recorded in control or plots receiving only basal dose of N and K fertilizers. The P and S content in soil samples collected at silking stage and post harvest stage were significantly affected and the higher values were recorded in plot receiving the maximum level of the respective fertilizer but the trend of increase was not consistent with respect to soil depth. The P and S content in leaves indicated that higher level of S (75 kg ha-1) resulted low uptake of P and vice versa, indicating their antagonistic effect with each other. This antagonistic effect was displayed in the yield whereby maximum grain yield was obtained where higher dose of P along with lower level of S was beneficial.
Authors and Affiliations
Muhammad Irfan, Muhammad Jamal Khan, Amjad Ali, Amanullah Jan and Sajida Parveen
Keywords
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