Effects of Different Types of Fertilizers on Rice Productivity in the Irrigated Perimeter of Toula (Niger)

Abstract

AIM: Assessment of various fertilizers type effects on rice productivity in Niger.
 Study Design: The experiment was laid by using a complete randomized block design with different types of fertilizers and was replicated four times.
 Place and Duration of Study: The field experiment was conducted during the dry and wet season of 2020 on the irrigated perimeter of Toula (Niger).
 Methodology: The experiment was performed with four treatments in complete randomized blocks. The treatments applied are: T1=Bokashi, T2=Compost, T3=Biochar and T4=NPK-Urea. The monitored parameters were the rice plant development cycle and agronomic characteristics. Observations of the crop evolution during the experimentation were recorded at regular intervals. The significance of treatment impact was examined by the statistical test. 
 Results: The results showed that bio-fertilizers had significant effects on 1000 grain weight and the length of the vegetative cycle. As for the chemical treatments, the effects were significant on most of the rice growth parameters (height, number of grains per panicle, number of tillers per rice plant) as well as on paddy and feed biomass yield. These results also showed a positive correlation between rice growth parameters and yield irrespective of the type of treatment.