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Pakistan Journal of Biological Sciences

Year: 2000  |  Volume: 3  |  Issue: 8  |  Page No.: 1239 - 1241

Effect of Different Nitrogen and Phosphorus Sources on The Growth and Grain Yield of Maize (Zea mays L.)

M. Ayub, M. Adil Choudhry, Asif Tanveer, M.M.Z. Amin and Imtiaz Ahmad


The effect of different NP sources viz., urea + single super phosphate (SSP), Ammonium nitrate (AN) + SSP, ammonium sulphate (AS) + SSP, Urea + Triple super phosphate (TSP), AN + TSP and AS + TSP on the growth and grain yield of maize was studied in the Agronomic Research Area, University of Agriculture, Faisalabad during the year 1997. A quadruplicated experiment was arranged in a randomized complete block design measuring a net plot size of 3m × 8m. The combination of ammonium sulphate and single super phosphate produced significantly higher plant height, leaf area plant–1 and grain yield (5.41 t ha–1) than all other combinations. The increased yield was mainly associated with higher 1000-grain weight. Number of cobs plant–1 and number of grain rows cob–1 were statistically similar in all combinations of NP sources. The combination of AS + SSP seems to be the most suitable one for obtaining higher grain yield of maize in Faisalabad conditions.

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