The response of maize to combined application of nitrogen and phosphorous fertilizers in the semi-arid conditions of Faisalabad

Changes in climate, development of new hybrids and soil fertility status has influenced nutrient application rates worldwide. A field experiment was carried out to determine the response of maize to combined application of nitrogen (N) and phosphorus (P) in the semi-arid conditions of Faisalabad. Research was planned at Agronomic Research Area, University of Agriculture, Faisalabad. The experiment was replicated three times and laid out in randomized complete block design with split plot arrangement keeping a net plot size of 8 m x 3 m. The experiment was comprised of two main factors (i) Nitrogen levels (100, 200 and 300 kg ha-1) and (ii) Phosphorus levels (50, 100 and 150 kg ha-1). Nitrogen doses were kept in main plots, while phosphorous doses in subplots. During experimentation, observations regarding phenology, growth, yield and yield related traits were recorded. Collected data was analysed using Fisher’s analysis of variance technique. MSTAT-C was used for statistical analysis and means were compared at 5% probability level of HSD test. Highest values for parameters were attained where N and P were applied with dose 200 and 150 kg ha-1, respectively. While, minimum values attained where with 100 and 50 kg ha-1 N and P, respectively. Interaction of both remained non-significant.