Impact of Enriched Biochar on Bean Growth (Phaseolus vulgaris) in the Presence of Mycorrhizae on two Contrasting Soils of Ngaoundere (Cameroon)

Hassana Boukar, University Institute Of Technology
2019 International Journal of Engineering Research and  
Although the use of mycorrhizae increases the agricultural yield, its cost remains prohibitive. The objective of this study is to evaluate the effect of the use of enriched biochar on the level of mycorrhizae applied on two contrasting soils. The enriched biochar is obtained by the pyrolysis of a mixture of sawdust, clay, and chicken manure. Experiments are carry out by growing French beans in pots containing two different soils collected in Ngaoundéré (University campus and Beka). A randomized
more » ... bloc factorial design based on six mycorrhizae treatments and two soil samples is used. Measured parameters are the germination duration; the total mass of stalks and roots; the roots depth; the increase in stalks height and diameter, the increase of the cumulative leaves number, the production of pods, and thus the yield. The university campus soil presents an acidic pH (5.2±0.2), meanwhile Beka soil shows an alkaline pH (7.75±0.1). When using enriched biochar, the germination' duration is significantly improved with the acidic soil (p<0.01) unlike that of the alkaline soil. Also, the total mass of the stalks and that of the roots are highly improved by the use of enriched biochar on the acidic soil compared to the alkaline soil. The same trends are observed for the production of cloves. Definitely, the enriched Biochar ameliorates the production of French beans on acidic soils and enables to reduce the level of mycorrhizae introduced in this type of soil.
doi:10.17577/ijertv8is060174 fatcat:jbswfiegffca5aq3emax2thx6m