Afrique sub-saharienne

This category contains 281 resources

Evergreen Agriculture: The use of fertilizer trees in maize production in Malawi.

Agroforestry is a set of tools which farmers can use to increase yields, build soil fertility, raise their income, and boost their food security. ICRAF and its partners have worked closely with farmers for decades to promote and develop simultaneous intercropping practices to address the challenges in soil fertility facing smallholder farmers. As supplementary technology in evergreen agriculture, agroforestry technology will focus on the concept of simultaneous intercropping of proven fertilizer trees in replenishing soil fertility and increasing crop yields. Simultaneous intercropping is an agroforestry technique whereby nitrogen-fixing woody trees are simultaneously grown with annual crops on the same piece of land at the same time. This is done in order to improve soil fertility and increase yields. While the trees are on the land throughout the year, the crops planted at the beginning of the rainy season dominate during the growing season.

Evergreen Agriculture: Conservation Agriculture in maize production in Malawi.

Evergreen Agriculture is a combination of conservation agriculture and agroforestry practices within the same spatial and temporal dimensions. In other circles, evergreen agriculture is referred to as agroforestry based conservation agriculture or Conservation Agriculture With Trees (CAWT). Evergreen agriculture is being tested by ICRAF in conjunction with partners in Malawi and across Africa as the means for enhancing soil fertility, increasing crop productivity and increasing food production. This section will focus on the principles and practices of Conservation Agriculture (CA) as applied in maize production in Malawi. Conservation agriculture also improves the soil health and productivity as well as improves the crop production. ICRAF envisages that a combination of these two technologies together with other technologies will improve soil health and improve crop production and finally improves food security in Malawi.

Establishing a tree nursery

At present the need to plant trees on farms is on the increase. It is difficult, however, for smallholders to access – at the right time, in the right quantities and of high quality – the trees that they want to plant. In order to meet present and future demand for planting materials, there is a need to promote on-farm and community tree nurseries. Such nurseries can be owned and managed by individual farmers, by self-help groups, by schools, by churches and/or by a range of other local institutions. They provide income-generating opportunities, act as models for further nursery development, provide seedlings more cheaply to planters, and can raise the particular species that local people are interested in. The practice describes the various steps involved in the establishment of a tree nursery.

Grafting Techniques of Allanblackia spp

This technology describes various stages of propagating Allanblackia species by grafting. Grafting is a technique widely used in horticulture and forestry for the mass production of selected plants, and is one of the most successful methods for propagating Allanblackia vegetative. The technique involves formation of a union between scions taken from desirable mother trees and rootstocks that are normally young or healthy seedlings established in the nursery. By grafting, the period between field establishment and when a tree flowers and fruits is generally shorted. This means that farmers can realize revenues more quickly.

Improved Fallows

Natural fallow is land resting from cultivation, usually used for grazing or left to natural vegetation for a long period to restore soil fertility lost from growing crops. Improved fallow is also land resting from cultivation but the vegetation comprises planted and managed species of leguminous trees, shrubs and herbaceous cover crops. These cover crops rapidly replenish soil fertility in one or at most two growing seasons. They shorten the time required to restore soil fertility; they help to improve farmland productivity because the plant vegetation that follows them is superior in quality; and they increase the range of outputs, because the woody fallow species can also produce fuel wood and stakes. This practice aims to describe how to establish and manage improved fallow as an innovative agroforestry technology that can meet the different needs of the farmers and improve the natural resource base. It is intended to serve as a useful guide for extension staff, non-governmental organizations, community-based organizations and farmers.


Cette fiche présente un modèle d’enfumoir fabriqué par la Plateforme des Apiculteurs des Cataractes, en RDC qui ne nécessite pas de soudures. Vous y trouverez des schémas bien détaillés, des photos et conseils permettant à tous bricoleurs/artisans de se lancer dans des essais de fabrication d’un modèle d’enfumoir simplifié dont l’efficacité a été reconnue par de nombreux apiculteurs. Cette fiche a été écrite par BNSS en collaboration avec André Makenbo de la Plateforme des Apiculteurs des Cataractes (PLAAC), en RDC.

Making farm-made fish feed for small-scale farms

Fish feed/aquafeed is one of the most expensive inputs for small aquaculture farms. At the same time it is one of the most important components, especially for the whole aquaculture ecosystem. This is also true for aquaponics because the fish feed sustains both the fish and vegetable growth. The technology below provides two simple recipes for a balanced fish feed for use in small-scale fish farms or aquaponic systems. The first formulation is made with proteins of vegetable origin, mainly soybean meal. The second formulation is mainly made with fishmeal. In addition, the technology provides a selection of live fish feed to supplement the pelleted feed. This technology of farm-made aquafeed production is most appropriate for small-scale aquaculture farming, and is best used when commercial feed is difficult or expensive to obtain.

Increasing yield of mango with selective harvest

Due to inaccurate methods of harvesting, farmers tend to destroy the quality of the mangoes and obtain reduced yields of the fruit which results in a loss of income of the farmers. Through selective harvesting techniques, mangoes are harvested in three stages from the trees based on their maturity level. Also, proper picking poles are used to harvest the mangoes in order to avoid dropping them on the ground causing subsequent damage. This technique explains how to properly harvest mangoes and how the mango harvest can be planned in order to reduce post-harvest losses.

Technologie de la ruche FONGE

Cette fiche, présente la ruche FONGE qui est un modèle de ruche intermédiaire entre la ruche à barrette modèle Kenyane et la ruche à cadres modèle Dadant. Ce modèle a été mis en place et expérimenté sur le terrain par le Groupe d’Initiative Locale Camerounais « Apiculture Lumière du Cameroun » (GIC LUMICAM). Le modèle ayant fait ses preuves, il a commencé à être vulgarisé au Cameroun par le GIC LUMICAM et Christophe Fonge a le plaisir de vous la présenter à travers cette fiche technique. Celle-ci reprend une comparaison entre différents modèles de ruche, les plans et les détails de fabrication de la ruche FONGE. Bonne découverte.

Comment récolter la propolis brute d’une ruche

La propolis, parfois comparée à de la « colle d’abeille », est une mixture résineuse que les abeilles récoltent sur les bourgeons des arbres et des résines végétales. La propolis est utilisée par les abeilles dans la ruche comme un matériel de construction ainsi que pour protéger la colonie contre les maladies. Les propriétés antimicrobienne et antivirale de la propolis ont été prouvées par de nombreuses études durant les dernières années. De plus, la propolis constitue une source de revenus supplémentaires pour qui souhaite l’extraire et la valoriser dans les domaines de la santé et du bien-être. Cette technologie explique comment collecter la propolis de la ruche des abeilles.