{"id":38346,"date":"2026-07-16T16:04:14","date_gmt":"2026-07-16T14:04:14","guid":{"rendered":"https:\/\/fondation-farm.org\/?post_type=actualite&#038;p=38346"},"modified":"2026-07-22T20:32:41","modified_gmt":"2026-07-22T18:32:41","slug":"farm-a-la-rencontre-de-thibaut-soyez-preserver-la-fertilite-des-sols-dans-la-vallee-du-fleuve-senegal","status":"publish","type":"actualite","link":"https:\/\/fondation-farm.org\/en\/actualite\/farm-a-la-rencontre-de-thibaut-soyez-preserver-la-fertilite-des-sols-dans-la-vallee-du-fleuve-senegal\/","title":{"rendered":"FARM meets Thibaut SOYEZ: preserving soil fertility in the Senegal River valley"},"content":{"rendered":"<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"FARM meets Thibaut SOYEZ: soil fertility in the Senegal River Valley \ud83c\udf0d\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/FvBz4ZjGeSY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><strong>In this 10<sup>th<\/sup> episode of <em>FARM meets\u2026<\/em> <strong>Thibaut SOYEZ<\/strong>, an agricultural engineer and project manager at the FARM Foundation, presents the transformations affecting soil fertility in the Senegal River valley, one of the country&#039;s main rice-growing basins.<\/strong><\/strong><\/h3>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-blue-color has-text-color has-link-color wp-elements-b7791da0b69dc198295d1e37e5d9abf8\"><strong>\ud83c\udfac EPISODE 10: <strong>understanding soil depletion in the Senegal River valley<\/strong><\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Before the construction of the dams in the late 1970s, fertility relied on three complementary practices:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>recession agriculture<\/strong>, which uses the moisture and silt deposits left by floods; ;<\/li>\n\n\n\n<li><strong>fallow land<\/strong>, periods when the land is left to rest in order to regenerate; ;<\/li>\n\n\n\n<li><strong>common pasture<\/strong>, where herds, moving according to the seasons, naturally enrich the soils with their droppings.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>The construction of dams and the development of irrigation have led to increased yields, particularly through double annual rice cultivation\u2026 but have also profoundly altered this traditional balance: floods have become less regular, fallow land has been reduced, and the passage of livestock has been limited.<\/p>\n<\/blockquote>\n\n\n\n<p>In irrigated areas, prolonged soil saturation with water leads to hydromorphism (waterlogged soil that suffocates the roots), while insufficient drainage promotes salinization, which is harmful to rice. These changes weaken the chemical, physical, and biological components of fertility. Faced with these challenges, producers are using several strategies to <strong>restore life to the soils<\/strong> :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>input of organic matter<\/strong>, essential for replenishing nutrient stores; ;<\/li>\n\n\n\n<li><strong>drainage<\/strong>, to limit salinity; ;<\/li>\n\n\n\n<li><strong>salt-resistant rice varieties<\/strong>, results from research; ;<\/li>\n\n\n\n<li><strong>recycling of crop residues<\/strong>, to maintain a fertility cycle.<\/li>\n<\/ul>\n\n\n\n<p>Practices that combine <strong>traditional knowledge<\/strong> and <strong>innovations<\/strong>, in order to preserve a strategic territory for Senegal&#039;s food security.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>The FARM Foundation warmly thanks Thibaut SOYEZ for the precision and pedagogy of his analysis, as well as all those who follow and support our work.<\/strong><\/h3>\n\n\n\n<p>\ud83d\udc49 Find all our actions on soil fertility in West Africa: <a href=\"https:\/\/fondation-farm.org\/en\/projet\/renouveler-la-fertilite-des-sols-en-afrique-de-louest\/\">https:\/\/fondation-farm.org\/projet\/renouveler-la-fertilite-des-sols-en-afrique-de-louest\/<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group is-content-justification-center is-layout-flex wp-container-core-group-is-layout-64b26803 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.linkedin.com\/company\/fondation-farm\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"75\" height=\"75\" src=\"https:\/\/fondation-farm.org\/wp-content\/uploads\/2025\/07\/logo-linkedin-siteinternet.jpg\" alt=\"\" class=\"wp-image-33653\"\/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><a href=\"https:\/\/www.linkedin.com\/company\/fondation-farm\/\" target=\"_blank\" rel=\"noreferrer noopener\">Follow us on LinkedIn<\/a><\/strong><\/h3>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity wp-container-content-16d1eb73\"\/>\n\n\n\n<div class=\"wp-block-group is-content-justification-left is-nowrap is-layout-flex wp-container-core-group-is-layout-f56a869c wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.facebook.com\/fondationfarm\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"75\" height=\"75\" src=\"https:\/\/fondation-farm.org\/wp-content\/uploads\/2025\/07\/logo-facebook-siteinternet.jpg\" alt=\"\" class=\"wp-image-33656\"\/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><a href=\"https:\/\/www.facebook.com\/fondationfarm\" target=\"_blank\" rel=\"noreferrer noopener\">And Facebook!<\/a><\/strong><\/h3>\n<\/div>\n<\/div>\n\n\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>In this 10th episode of FARM meeting\u2026, Thibaut SOYEZ, project manager at the FARM Foundation, presents the transformations affecting soil fertility in the Senegal River Valley, one of the country&#039;s main rice-growing basins.<\/p>","protected":false},"featured_media":38491,"parent":0,"template":"","categorie":[147],"class_list":["post-38346","actualite","type-actualite","status-publish","has-post-thumbnail","hentry","categorie-portraits"],"acf":[],"_links":{"self":[{"href":"https:\/\/fondation-farm.org\/en\/wp-json\/wp\/v2\/actualite\/38346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fondation-farm.org\/en\/wp-json\/wp\/v2\/actualite"}],"about":[{"href":"https:\/\/fondation-farm.org\/en\/wp-json\/wp\/v2\/types\/actualite"}],"version-history":[{"count":8,"href":"https:\/\/fondation-farm.org\/en\/wp-json\/wp\/v2\/actualite\/38346\/revisions"}],"predecessor-version":[{"id":38497,"href":"https:\/\/fondation-farm.org\/en\/wp-json\/wp\/v2\/actualite\/38346\/revisions\/38497"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fondation-farm.org\/en\/wp-json\/wp\/v2\/media\/38491"}],"wp:attachment":[{"href":"https:\/\/fondation-farm.org\/en\/wp-json\/wp\/v2\/media?parent=38346"}],"wp:term":[{"taxonomy":"categorie","embeddable":true,"href":"https:\/\/fondation-farm.org\/en\/wp-json\/wp\/v2\/categorie?post=38346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}