Application of Randomized Completely Block Design to The Yield of Maize

Abstract

This study examined the significant difference in the mean yield of maize in Ogun State, Nigeria with respect to the effect of fertilizer’s proportion and maize varieties. For the successful execution of this research work, secondary data was collected from Ogun State Agricultural Development Programme (OGADEP), Department of Agriculture Production Survey (APS), Ogun State. There were four levels of fertilizer’s proportion (50kg, 100kg, 150kg and 200kg) and three levels of maize variety (Open Pollinated, Hybrid and Local Maize). Data collected was analyzed electronically using SPSS version 21. The analysis techniques employed was a Randomized Completely Block Design (RCBD) without replicates. Results from the analysis revealed that there is significant difference in the effect of the fertilizer’s proportions and maize varieties on the yield of maize in Ogun State, Nigeria. The multiple comparisons test for fertilizer proportion indicates the significant difference to be between 50kg & 200kg fertilizers and between 100kg & 200kg fertilizers. However, an evaluation of the marginal mean revealed the 200kg fertilizer to be the most suitable. The multiple comparisons test for maize varieties indicates the significant difference to be between Open pollinated and Hybrid maize. However, an evaluation of the marginal mean revealed the Hybrid type of maize to be the most suitable