5 research outputs found

    Integrated soil nutrient management option for sustainable yam production

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    A study was conducted at the on-station in Fumesua (Forest) and Ejura (Forest-Savannah transition) of Ghana to evaluate integrated soil nutrient management approach on soil and yam productivity. A split-factorial design with two preceding systems (Pigeon pea and Yam) as main plot treatments and a factorial of poultry manure (0, 3 and 6 t ha-1) and chemical fertilizer (0, 15 - 15 - 20, and 30 - 30 - 40 kg ha-1 N-P2O5-K2O) as subplot treatments. The results of the study revealed significant (P < 0.05) interaction between preceding system, poultry manure and chemical fertilizer on fresh tuber yields. When yam followed pigeon pea as preceding crop, tuber yields were higher, and yields from 3 t ha-1 poultry manure and 15 - 15 - 20 kg ha-1 N-P2O5-K2O were similar to yields when manure and chemical fertilizer were doubled to 6 t ha-1 and 30-30-40 kg ha-1 N-P2O5-K2O. Also when yam followed pigeon pea, the cost benefit ratio showed that Gh 1.00 farmer investment in yam production resulted a profit of Gh 1.65 and Gh 2.22 in addition to the Gh 1.00 invested capital for both Fumesua and Ejura communities respectively. The study suggests integrated nutrient management approach with preceding systems such as pigeon pea (16,667 plants ha-1) and 3 t ha-1 poultry manure would reduce the chemical fertilizer requirement to a third for sustainable yam production on continuously cropped fields.Key words : Integration, legumes, climate change, Ghana

    Improved Agronomic Practices for Sustainable Yam Production: The on Farm Experience

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    Pratiques agronomiques amĂ©liorĂ©es pour une production durable de l'igname: l'expĂ©rience Ă  la ferme RĂ©sumĂ© La production d'igname au Ghana et dans d'autres pays de l'Afrique de l'Ouest se caractĂ©rise par un dĂ©placement annuel de la terre Ă  la terre Ă  la recherche de sols fertiles contribuant Ă  la dĂ©forestation et Ă  la dĂ©gradation des terres. Il est donc nĂ©cessaire de relever ce dĂ©fi grĂące Ă  une technologie innovante d'utilisation des terres qui permettrait de soutenir la production en dĂ©pit des dĂ©fis. L'objectif spĂ©cifique de l'Ă©tude Ă©tait de vĂ©rifier et de dĂ©montrer un ensemble agronomique amĂ©liorĂ© pour la production d'igname durable dans les communautĂ©s d'igname d'Ejura et d'Atebubu dans l'Ă©cologie transitionnelle forĂȘt-savane du Ghana. Deux lots de traitement de pratiques agronomiques amĂ©liorĂ©es et de pratiques des paysans/paysannes ont Ă©tĂ© organisĂ©s dans le cadre de la conception de blocs complets randomisĂ©s sur un total de 8 champs d'agriculteurs comprenant chacun 4 dans la communautĂ© d'Ejura et d'Atebubu. Le paquet agronomique amĂ©liorĂ© consistait en l'utilisation de billons comme couche desemis, traitement des semences avec insecticide et fongicide, application d'engrais Ă  un taux de 45:45:60 N: P2 05: K20 kg/ha et utilisation d'un tuteurage minimum (treillis; % nombre de piquets utilisĂ©s dans le jalonnement des agriculteurs). Cela a Ă©tĂ© comparĂ© Ă  la pratique des agriculteurs, qui consistait en une mise en tas, pas d'application d'engrais et pas de traitement des semences. Les rĂ©sultats ont rĂ©vĂ©lĂ© des rendements en tubercules d'igname trĂšs Ă©levĂ©s (P ≀ 0,05) de 196% et 205% dans les champs agronomiques amĂ©liorĂ©s par rapport aux champs de pratique des agriculteurs dans les communautĂ©s agricoles d'Ejura et d'Atebubu respectivement. L'Ă©tude avait dĂ©montrĂ© que l'extension des emballages agronomiques amĂ©liorĂ©s permettrait de maintenir la production d'igname dans les champs cultivĂ©s en continu et de rĂ©soudre le problĂšme de la dĂ©forestation associĂ© Ă  la production d'igname.Mots clĂ©s: DĂ©forestation; DĂ©gradation du sol; Application d'engrais; champ de culture continue; La pratique des agriculteur

    Logistic analysis of factors and perception of smallholder rubber farmers to intercrop: a case study involving rubber and plantain intercropping system in Ghana

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    Even though rubber tree (Hevea brasiliensis) is a major tree crop and is lucrative for small holder' farmers in Ghana, the 6 years waiting period to maturity constraints its establishment. Intercropping of rubber with food crops has been found to be a solution to this production constraint in most rubber producing countries. The objective of this study was to empirically assess farmers' perception on rubber/plantain intercropping and factors that directly affect rubber farmers' decision to intercrop rubber plantations with plantain. A multistage sampling technique was used to select 200 rubber farmers from the Central and Western regions of Ghana. Both descriptive and logistic regression models were used to analyze the data. About 83% of the rubber farmers were males. Based on the logit model analysis, gender, level of education, household size, farm size, member of association and experience in rubber farming were found to have significant influence on the adoption of rubber/plantain intercrop. Respondents see the potential adoption of rubber/plantain intercropping system as a means to improve food security, farmers' income and livelihood. Non-governmental organizations, Ghana Rubber Estates Limited (GREL) and Government should focus on strengthening its extension arm to develop more interpersonal contacts with potential rubber farmers. Policy makers, researchers and extension providers should closely work together with rubber farmers in identifying suitable rubber/plantain spacing and varieties on a case by case basis to ensure effective adoption and scaling out.Keywords: Food security, Ghana, GREL, Livelihood, Rubber and plantain intercroppin
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