Underlines the importance of adaptive research in ensuring the relevance of extension advice; the potential for the use of a broader range of communication methods within the formal extension system; and the need for extension agents to be accountable to the communities which they serve
Francis, P.A.
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Rawlins-Branan, M.J.
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[The extension system and small-scale farmers: A case study from northern Zambia]
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The extension system and small-scale farmers: A case study from northern Zambia
This study modeled the introduction of new early cultivars of millet and cowpea, higher cowpea densities, and various fertilization strategies. Model results were then compared with farmer behaviour before and after the availability of these new technologies. The model correctly identified the tw...
Shapiro, Barry I.
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Sanders, J.H.
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Reddy, K.C.
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Baker, T.G.
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[Evaluating and adapting new technologies in a high-risk agricultural system - Niger]
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Evaluating and adapting new technologies in a high-risk agricultural system - Niger
Presents the dry matter yields of 9 trifolium species fertilized at various P levels on a black clay vertisol (PH6) at ILCA's head quarters near Addis Ababa (elevation 2400m, rainfall 1300 mm).
Akundabweni, L.S.
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[Les trefles indigenes des hauts plateaux ethiopiens: Champions des forets de l'interieur]
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Les trefles indigenes des hauts plateaux ethiopiens: Champions des forets de l'interieur
The study investigated the effect of intercropping cereals (maize, sorghum and wheat) with forage legumes (lablab and clover), planting methods and manure application on cereal grain and fodder dry matter yield and fodder nutritive value. Data collected over a period of three years, indicated tha...
Mpairwe, D.R.
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Sabiiti, E.N.
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Umunna, N.N.
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Tegegne, Azage
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Osuji, P.O.
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[Effect of intercropping cereal crops with forage legumes and source of nutrients on cereal grain yield and fodder dry matter yields]
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Effect of intercropping cereal crops with forage legumes and source of nutrients on cereal grain yield and fodder dry matter yields
Smallholder farmers in East-Africa commonly intercrop maize (Zea mays L.) with grain legumes to maximize utilisation of land and labour, and attain larger crop yields. Conventionally, one legume line is intercropped between each pair of maize lines. This study evaluated the potential of a modifie...
Mucheru-Muna, M.
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Pypers, Pieter
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Mugendi, DN
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Kung'u, J.B.
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Mugwe, J
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Merckx, R.
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Vanlauwe, Bernard
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[A staggered maize-legume intercrop arrangement robustly increases crop yields and economic returns in the highlands of Central Kenya]
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A staggered maize-legume intercrop arrangement robustly increases crop yields and economic returns in the highlands of Central Kenya
Manure is a key nutrient resource on smallholder farms in the tropics, especially on poorly buffered sandy soils, due to its multiple benefits for soil fertility. Farmers preferentially apply manure to fields closest to homesteads (homefields), which are more fertile than fields further away (out...
Zingore, Shamie
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Delve, Robert J.
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Nyamangara, Justice
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Giller, Ken E.
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[Multiple benefits of manure : The key to maintenance of soil fertility and restoration of depleted sandy soils on African smallholder farms]
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Multiple benefits of manure : The key to maintenance of soil fertility and restoration of depleted sandy soils on African smallholder farms
In Nigeria, increased land-use intensity has depressed the use of fallow for soil fertility restoration. Crop yields have fallen, threatening food security. High cost limits farmers’ access to fertilizers. Reliance on crop-livestock interaction is plausible because animals provide manure. This pa...
Chianu, J.N.
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Tsujii, H.
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Manyong, Victor M.
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[Crop-livestock interaction in the savannas of Nigeria: nature and determinants of farmer decision to use manure for soil fertility maintenance]
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Crop-livestock interaction in the savannas of Nigeria: nature and determinants of farmer decision to use manure for soil fertility maintenance
Plant architecture and N fertilizer may limit the performance of intercropped maize (Zea mays L.) and cowpea [Vigna unguiculata (L.) Walpers] cultivars. This paper describes an experiment in which cultivars of maize and cowpea were intercropped and fertilized with varying rates of N. The cowpea c...
Ezumah, H.C.
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Nam, N.K.
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Walker, P.
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[Maize-cowpea intercropping as affected by nitrogen fertilization]
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Maize-cowpea intercropping as affected by nitrogen fertilization
Our study on soil N dynamics was conducted in the rainy season of 2005 and 2006. It focused on the effects of soil managements with sole and combined applications of mineral and organic fertilizers in the long-term experiment conducted since 1993 in the Niamey Center of the International Crop Res...
Suzuki, K.
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Matsunaga, R.
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Hayashi, K.
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Matsumoto, N.
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Tobita, S.
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Bationo, B. André
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Okada, K.
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[Effects of long-term application of mineral and organic fertilizers on dynamics of nitrogen pools in the sandy soil of the Sahel region, Niger]
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Effects of long-term application of mineral and organic fertilizers on dynamics of nitrogen pools in the sandy soil of the Sahel region, Niger
Improving fertilizer recommendations for farmers is essential to increase food security in smallholder landscapes. Currently, blanket recommendations are provided across agro-ecological zones, although fertilizer response and nutrient use efficiency by maize crop are spatially variable. We aimed ...
Ichami, Stephen M.
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Shepherd, Keith D.
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Sila, Andrew M.
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Stoorvogel, Jetse J.
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Hoffland, Ellis
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[Fertilizer response and nitrogen use efficiency in African smallholder maize farms]
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Fertilizer response and nitrogen use efficiency in African smallholder maize farms