Effects of the Speed of Mechanical Tillage on the Structure of Ferralitic Soil

The present work consists in evaluating the impacts of plowing speed three-body plows/discs hitched to a 60 HP tractor, on structure ferralitic soil, and determining optimal which guarantees good soil biomass retention capacities, bearing capacity preservation leading better yield with view using motorized tools wisely agricultural practices Benin plateau, from 2019-2021. All was carried out same day 21 plots, divided into 3 blocks 7 elementary plots. treatments are V0, V1, V2, V3, V4, V5, V6, i.e. 2, 4, 6, 8, 10, 12 km/h. V0 is control. tests according standards: NF EN ISO 17892-4.2018, for particle size analysis, 17892.2018, Atterberg limits, P 94-050.1995, water content by weight, XP 94 -047.1998, rate organic matter, 1097-3.1998, apparent density. Soil conductivity determined Muntz method (double rings). results show that at an average (6 km/h) generates matter respectively 5.04 ± 0.76% 0.304 0.004% ploughshare than (6. 47±0.35%; 0.324± 0.012%) disc plow. higher generated 6 km/h would limit risks embrittlement while guaranteeing conservative tendency fertility. This will allow tractor operators perform tillage operations taking account without seriously damaging structure, guarantee sustainable development agriculture.