Influence of sawdust biochar application on the growth, morphological characters and yield of four varieties of sesame ( Sesamum indicum L.)
2022
Ehiokhilen Eifediyi | Abduquadir Yusuf Imam | Henry Emeka Ahamefule | Felix Omonkeke Ogedegbe | Theophilus Olufemi Isimikalu
Purpose Sawdust, an organic residue abounds in many parts of Nigeria; they often block drainage channels, sometimes burnt to further aggravate the greenhouse gases in the atmosphere. However, it can be harnessed as soil amendment.Method A field experiment was carried out at the Teaching and Research Farm, University of Ilorin, Nigeria during the 2018 and 2019 wet seasons to evaluate the performance of four sesame varieties using sawdust biochar. The experiment was laid out in a split-plot design, replicated four times. The main plots consisted of four varieties of Sesame (E-8, Ex-Sudan, NCRI-Ben001M, and NCRI-Ben002M), the subplots were sawdust biochar (0, 5, 10, 15, and 20 Mgha-1). Data were collected on water holding capacity, plant height, and number of leaves, leaf area index, and yield per hectare. Data were subjected to analysis of variance (ANOVA) and means were separated using new Duncan Multiple Range test at 5% level of probability.Results Results showed significant (Ƿ ˂0.05) effects of variety, and sawdust biochar rates on plant height, number of leaves, leaf area index, crop growth rate and yield per hectare. Variety NCRI-Ben001M gave a yield of 670 kgha-1 at the application rate of 15 tha-1 sawdust biochar (676 kgha-1) compared to the average yield of sesame in Nigeria.Conclusion Farmers are therefore encouraged to cultivate NCRI-Ben001M variety and use saw dust biochar at the rate of 15 Mg ha-1 for optimum yield.
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