Effect of Planting Methods and Nitrogen Sources on Yield, Yield Components and N-Uptake of Spring Maize

A field experiment was conducted to evaluate effect of different planting methods and nitrogen sources on yield and yield components of spring maize at Agronomy Research Farm, The University of Agriculture, Peshawar during spring 2016 and 2017. Research work was carried out in randomized complete block design having total number of four replication. Different planting methods (ridge, raised bed and flat) were assigned to main plot while different nitrogen sources (poultry manure, FYM, urea and press-mud) were allotted to sub plots. Organic manures were applied manually into soil one week before maize sowing. Analysis of data showed that all parameters of spring maize were significantly affected by different planting methods except N-uptake. Maximum grain yield (3695 kg ha-1), biological yield (9485 kg ha-1) and grains ear-1 (393) were recorded in ridge planting method. Similarly, all yield parameters were also significantly affected by different nitrogen sources. Maximum grain yield (4350 kg ha-1), biological yield (10103 kg ha-1), grains ear-1 (449) and total N-uptake were recorded in poultry manure applied plots. Thus, it is concluded that ridge planting method and poultry manure resulted maximum grain yield and biological yield of spring maize as compared to other treatments.