{"id":17595,"date":"2026-06-20T12:58:06","date_gmt":"2026-06-20T12:58:06","guid":{"rendered":"https:\/\/dev.iita.org\/news-item\/special-feature-iita-long-term-trials-validate-isfm-benefits\/"},"modified":"2026-06-29T17:11:04","modified_gmt":"2026-06-29T17:11:04","slug":"special-feature-iita-long-term-trials-validate-isfm-benefits","status":"publish","type":"news-item","link":"https:\/\/iita.org\/fr\/news-item\/special-feature-iita-long-term-trials-validate-isfm-benefits\/","title":{"rendered":"Special feature: IITA long-term trials validate ISFM benefits"},"content":{"rendered":"<div>\n<div id=\"attachment_348\" class=\"wp-caption alignright\" style=\"width: 222px;\">\n\n<img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-348\" src=\"https:\/\/iita.org\/wp-content\/uploads\/2026\/06\/Opt_CCAFSpbSoil.pdf.jpg\" alt=\"Integrated Soil Fertility Management: Contributions of framework and practices to climate- smart agriculture\" width=\"222\" height=\"314\" aria-describedby=\"caption-attachment-348\" \/>\n<p id=\"caption-attachment-348\" class=\"wp-caption-text\">Integrated Soil Fertility Management: Contributions\nof framework and practices to climate-smart agriculture<\/p>\n\n<\/div>\n<\/div>\nIITA researchers working together with other scientists have shown that food security, crop yields and farmers\u2019 livelihoods; the resilience of cropping systems to climatic change impacts; and mitigation of greenhouse gas (<a href=\"http:\/\/www.livescience.com\/37821-greenhouse-gases.html\" target=\"_blank\" rel=\"noopener\"><u>GHG<\/u><\/a>) emissions derived from fertilizer or soil are significantly enhanced when Integrated Soil Fertility Management (<a href=\"http:\/\/www.rural21.com\/english\/news\/detail\/article\/integrated-soil-fertility-management-a-concept-that-could-boost-soil-productivity-0000821\/\" target=\"_blank\" rel=\"noopener\"><u>ISFM<\/u><\/a>) is practiced during production.\n\nTo achieve these, stakeholders in agriculture advocate a shift in agro-practices to production systems that are \u201cclimate smart\u201d. This means systems that are more productive, use inputs more efficiently, and are more responsive to local climate and socioeconomic conditions while also contributing to address climate change.\n\nThe ISFM system \u2013 a set of agro-practices adapted to local conditions for increasing production and the efficiency of inputs \u2013 is one such system which decades of research show as being able to satisfy the goals of\u00a0<a href=\"http:\/\/modernfarmer.com\/2014\/09\/csa-climate-smart-agriculture\/\" target=\"_blank\" rel=\"noopener\"><u>Agriculture climato-intelligente<\/u><\/a>\u00a0(CSA).\n\nISFM promotes the systematic combination of both organic and inorganic inputs, improved germplasm, and sound agronomic practices as the best fit technology to successfully increase agricultural production and achieve food and nutrition security especially for poor smallholder farmers in developing countries relying on rainfed agriculture for their livelihoods. The technology is anchored on the germplasm of crops and use of inorganic fertilizer; organic resource management; and other limitations to productivity such as soil acidity, erosion, pests and diseases. These pillars make ISFM invaluable to CSA.\n\nIITA researchers carried out a 20-year trial in Nigeria to show the benefits of ISFM on all dimensions of CSA. In the study, reduced rates of nitrogen phosphorus potassium (NPK) fertilizer application to maize crops and input of nitrogen-rich organic residues were employed while rotating maize and cowpea.\n\nThe technology produced a much higher and better quality harvest for cultivated maize and cowpea. The study also demonstrates a cost-effective and environmentally friendlier alternative to boosting food security and generating wealth compared to lone use of synthetic chemical pesticides.\n\nISFM practices of combining fertilizers with organic input showed an average maize productivity of 2.8 t\/ha versus 1.7 t\/ha when only fertilizers were used. Cowpea yielded about 1.2 t\/ha under the ISFM system compared to 0.7 t\/ha when no organic inputs were made.\n\nThe study further showed that the variability in maize grain yields between growing seasons was reduced by 63% in the ISFM system whereas soil carbon content was almost double under non-ISFM farming practices, demonstrating that ISFM practice does indeed mitigate GHG emissions.\n\nDetails of the study are contained in a report by the Global Alliance for Climate-Smart Agriculture (<u><a href=\"http:\/\/www.fao.org\/gacsa\/about\/en\/\" target=\"_blank\" rel=\"noopener\">GACSA<\/a><\/u>) titled \u201c<a href=\"https:\/\/cgspace.cgiar.org\/bitstream\/handle\/10568\/69018\/CCAFSpbSoil.pdf\" target=\"_blank\" rel=\"noopener\"><u>Integrated Soil Fertility Management: Contributions of framework and practices to climate-smart agriculture<\/u><\/a>.\u201d The report, authored by\u00a0<a href=\"https:\/\/iita.org\/fr\/roobroeck-dries\/\" target=\"_blank\" rel=\"noopener\"><u>D Roobroeck<\/u><\/a>,\u00a0<u><a href=\"https:\/\/iita.org\/fr\/van-asten-petrus\/\" target=\"_blank\" rel=\"noopener\">P Van Asten<\/a><\/u>, B Jama, R Harawa, and\u00a0<u><a href=\"https:\/\/iita.org\/fr\/vanlauwe-bernard\/\" target=\"_blank\" rel=\"noopener\">B Vanlauwe<\/a><\/u>, elaborates on and serves as a guidebook for the practice of ISFM as well as identifies and proposes solutions to adoption barriers.\n\nEven though the benefits of ISFM practice are demonstrably clear, adoption and maintenance rates remain very low across sub-Saharan Africa. The report identifies contributory factors that include high transaction costs, inadequate access to input\/output and credit markets, land size and property rights issues, poor information dissemination systems, non-existent agricultural extension services, and a paucity of government and donor-funded projects.\n\nThe solution to these challenges may, however, lie in replicating across sub-Saharan Africa, an experiment facilitated by the\u00a0<u>Clinton Development Initiative<\/u>\u00a0(CDI) and\u00a0<u>Alliance for a Green Revolution in Africa<\/u>\u00a0(AGRA) to upscale ISFM in Malawi.\n\nThe program which combines maize-soybean rotations with strategic use of NPK fertilizers employs a model that brings different participants in the value chain together, facilitating close relationships and enabling better access by smallholder farmers to information, input\/output, and credit markets.\n\nAs a result, average maize and soybean yields have increased by 140% and 86%, respectively, in three years while women make up about 50% of the 18,000 smallholder farmers to have adopted the ISFM practice. Another 30,000 farmers, half of which are women, are currently being trained on ISFM practices and a total of 9,906 hectares of land have been converted to the ISFM system.\n\nThis demonstrates that accelerating adoption rates of ISFM across the region will ensure that smallholder farmers can secure their food and nutrition needs and enhance their incomes in the face of climate change.","protected":false},"excerpt":{"rendered":"<p>IITA researchers working together with other scientists have shown that food security, crop yields and farmers\u2019 livelihoods<\/p>","protected":false},"featured_media":17596,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"tags":[2344],"science-area":[],"program":[],"location":[32],"news-type":[],"hub":[61],"crop":[],"impact-areas":[],"item-year":[194],"class_list":["post-17595","news-item","type-news-item","status-publish","has-post-thumbnail","hentry","tag-bulletin-no-2313climate-smartclimate-smart-agricultureintegrated-soil-fertility-management","location-nigeria","hub-western-africa","item-year-194"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - 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