CIFOR-ICRAF s’attaque aux défis et aux opportunités locales tout en apportant des solutions aux problèmes mondiaux concernant les forêts, les paysages, les populations et la planète.

Nous fournissons des preuves et des solutions concrètes pour transformer l’utilisation des terres et la production alimentaire : conserver et restaurer les écosystèmes, répondre aux crises mondiales du climat, de la malnutrition, de la biodiversité et de la désertification. En bref, nous améliorons la vie des populations.

CIFOR-ICRAF publie chaque année plus de 750 publications sur l’agroforesterie, les forêts et le changement climatique, la restauration des paysages, les droits, la politique forestière et bien d’autres sujets encore, et ce dans plusieurs langues. .

CIFOR-ICRAF s’attaque aux défis et aux opportunités locales tout en apportant des solutions aux problèmes mondiaux concernant les forêts, les paysages, les populations et la planète.

Nous fournissons des preuves et des solutions concrètes pour transformer l’utilisation des terres et la production alimentaire : conserver et restaurer les écosystèmes, répondre aux crises mondiales du climat, de la malnutrition, de la biodiversité et de la désertification. En bref, nous améliorons la vie des populations.

CIFOR–ICRAF publishes over 750 publications every year on agroforestry, forests and climate change, landscape restoration, rights, forest policy and much more – in multiple languages.

CIFOR–ICRAF addresses local challenges and opportunities while providing solutions to global problems for forests, landscapes, people and the planet.

We deliver actionable evidence and solutions to transform how land is used and how food is produced: conserving and restoring ecosystems, responding to the global climate, malnutrition, biodiversity and desertification crises. In short, improving people’s lives.

Tropical soil fertility research: towards the second paradigm

Exporter la citation

Soil management issues appear prominently in Agenda 21's priorities for sustainable land management, protecting the atmosphere, sustainable mountain development and combatting deforestation and desertification. Although major advances in managing soils of the tropics have taken place, a paradigm shift is emerging from the traditional soil fertility paradigm: overcome soil constraints to fit plant requirements through purchased inputs. A second paradigm addresses directly the issues in Agenda 21: rely more on biological processes by, adapting germplasm to adverse soil conditions, enhancing soil biological activity and optimizing nutrient cycling to minimize external inputs and maximize the efficiency of their use. Efficient nutrient management, therefore, is the basis for the second paradigm. An integrated strategy is proposed with 10 research components: 1) Analysis of farmer perceptions and policy constraints; 2) geographic depiction of soil-related constraints; 3) improving germplasm for soil constraint tolerance; 4) matching plant requirements to soil constraints; 5) strategic use of fertilizers; 6) nutrient budgeting and nutrient cycling; 7) biological control of soil erosion; 8) water harvesting; 9) controlling greenhouse gas emissions through improved soil management, and 10) policy design and implementation.
    Année de publication

    1994

    Auteurs

    Khairiba K

    Langue

    English

    Mots clés

    soil fertility, tropical soils, soil management, research, nutrient management

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