Gestion durable de la fertilité des sols par l'utilisation de matières organiques : retours d'expérience en Guyane française

Abstract : Soils are at the heart of major global challenges: food security, quality of groundwater and surface water, air quality, climate change and biodiversity. Soil is a natural resource that must be protected and sustainably used. To maintain or even improve the soil fertility of French Guiana, already naturally poor, agro-ecological processes focusing organic matter in order to stimulate the soil life are developed in the current cropping systems. Through this sustainable management approach, soil is no longer considered as an inert support but also as a living component that produces and provides nutrients to crops. Various types of organic matter (Rameal Chipped Wood - RCW, charcoal, compost, mulch of cover plants) were tested to determine their impact on the soil, particularly through the use of bio-indicators of soil microbial activities related to the carbon and nitrogen cycles. Every tested organic matters increase soil quality (high stimulation of active microbial biomass). However, different types of organic matters affect differently the soil microbial diversity.
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  • HAL Id : hal-01901476, version 1
  • PRODINRA : 449868

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William Montaigne, H. Debon, Anne-Marie Domenach, Jean-Christophe Roggy. Gestion durable de la fertilité des sols par l'utilisation de matières organiques : retours d'expérience en Guyane française. Innovations Agronomiques, INRA, 2018, 64, pp.71-82. ⟨hal-01901476⟩

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