Skip to Main content Skip to Navigation
Journal articles

Peut-on gérer la flore adventice sans recours aux herbicides de synthèse dans les systèmes de cultures amazoniens ? Sensibilisation aux apports et intérêts des principes agroécologiques

Abstract : As all around the world, the farmers have to guarantee their income and produce foods, or services, that respect the environment and health of consumers, while protecting or improving the fertility of soils. More than anywhere else, the control of weeds in tropical regions is a major constraint for crop production and mobilizes the attention of the farmers! In tropical areas weeds benefit from favorable growing conditions throughout the year, while the number of days available for their eradication is limiting (rains, wind, soils full of water…). The origin and the environment of the agricultural parcel, often small-sized and in heterogeneous and diversified context (border…), also facilitate the weeds return. The agroecological solutions based on: - Light control (green or dead mulch) - Limitation of development with a biological control (pasture), mechanical (tillage, rollers like FACA), thermal, or burndown (allelopathy properties). At the scale of cropping systems, a strategy based on cash crops rotation combined with controlled fallow (e.g. weed suppressive cover species such as nitrogen-fixing legume) also offers opportunities to control weed pressure. Additionally this creates an opportunity for coverspecies to deliver additional ecosystem services (e.g. fertility building, conservation of nutrients in the soil …) The objective of this article is to offers farmers a set of methods against weed pressure based on agroecological principles. The choice of the method to be used must be reasoned in each cropping system, according to its environmental and socio-technical context. There is no one but many methods of weed management, that we will examine from different examples in French Guyana and Guadeloupe.
Complete list of metadata

Cited literature [11 references]  Display  Hide  Download

https://hal.inrae.fr/hal-02619923
Contributor : Migration ProdInra Connect in order to contact the contributor
Submitted on : Monday, May 25, 2020 - 9:03:33 PM
Last modification on : Friday, August 5, 2022 - 2:38:11 PM

Files

ASCL_2018_Tournebize_InnovAgro...
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution - NonCommercial - NoDerivatives 4.0 International License

Identifiers

Citation

Régis Tournebize, Youri Uneau, Jean-Christophe Roggy. Peut-on gérer la flore adventice sans recours aux herbicides de synthèse dans les systèmes de cultures amazoniens ? Sensibilisation aux apports et intérêts des principes agroécologiques. Innovations Agronomiques, INRAE, 2018, 64, pp.11-18. ⟨10.15454/1.540799491691693E12⟩. ⟨hal-02619923⟩

Share

Metrics

Record views

90

Files downloads

85