Effects of Fertilizers on Growth and Yield Parameters of Mirriah Pepper (Capsicum frutescens L.) in Zinder, Niger

This study, conducted in the botanical garden of André Salifou University in Zinder, aims to evaluate the effects of mineral and organic fertilizers on the growth and yield parameters of the local variety of Mirriah long chili pepper (Zinder region). Factorial randomized block design and three replicates had use for experimentation. Two factors were studied. The factor (block) had three levels, b1 to b3, and the factor (fertilization or treatment) had seven levels (T0, T1, T2, T3, T4, T5, and T6). The collected data were analyzed using Minitab-v18 and Rv4.3.1 software. Comparison of average performance and Principal Component Analysis (PCA) showed significant differences between the different treatments on the variables studied. In addition, the results show variability between treatments. In fact, in terms of fertilization, organic fertilizers performed better than mineral fertilizers, which in turn outperformed the witness. Composted poultry manure (T3) recorded the most effective treatment averages for almost all of the parameters studied. T3 treatment improves yield more effectively than the witness in the study. However, this treatment should be widely adopted in order to obtain better yields for chili pepper cultivation.