REDOX POTENTIAL AND PH

The relationship between the plant and the soil is permanent during the plant’s development cycle. For 10 years, the work of Olivier HUSSON, CIRAD researcher, has provided a new vision of the influence of pH and redox potential on this relationship. In posteriori, it appears that this parameter intervenes at all levels of the functioning of the ecosystem, confirming the vision of Albert SZENT-GYORGYI according to which «life is a small current maintained by the sun».

The training course aims, firstly, to provide a basic knowledge for a good understanding of pH and redox potential. Then, it will be shown successively how it intervenes in the growth of the plant, in the good balance of the soil and in the mechanism of bioaggression. Then, the impact of agricultural practices on the pH-redox balance will be discussed. In conclusion, all this information will enable the implementation of an action plan that includes all the good practices that are favourable to a good balance between the soil and the plant.

Afterwards, this training course should enable the learner to evolve towards the implementation of agro-ecological practices and to reduce the use of inputs (fertilizers, phytosanitary products in particular), while developing the performance of the cropping system.