Les engrais fournissent les elements nutritifs necessaires aux vegetaux pour leur developpement, D'une maniere general, les vegetaux absorbent les elements nutritifs dissous dans I'eau. Toutefois, on ne peut pas se servir uniquement de la solubilite dans l'eau pour mesurer la quantite d'elements ...
Kang, B.
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[Les engrais; definitions et calculs: guide de recherche de lIita, No. 24]
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Les engrais; definitions et calculs: guide de recherche de lIita, No. 24
Leaf and root (tuber) nutrient uptake patterns of cassava (Manihot esculenta Crantz) alley-cropped with gliricidia (Gliricidia sepium), leucaena (Leucaena leucocephala), and senna [(Senna (syn. Cassia) siamea] as influenced by vesicular-arbuscular mycorrhizal (VAM) inoculation in a degraded Alfis...
Osonubi, O.
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Atayese, M.O.
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Mulongoy, K.
,
[The effect of vesicular arbuscular mycorrhizal inoculation on nutrient uptake and yield of alley cropped cassava in a degraded Alfisol of southwestern Nigeria]
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The effect of vesicular arbuscular mycorrhizal inoculation on nutrient uptake and yield of alley cropped cassava in a degraded Alfisol of southwestern Nigeria
Ghuman, B.S.
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Lal, R.
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[Nutrient addition into soil by leaves of Cassia siemea and Gliricidia sepium growth on an alfisol in southern Nigeria]
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Nutrient addition into soil by leaves of Cassia siemea and Gliricidia sepium growth on an alfisol in southern Nigeria
Cassava sweet potato intercropping experiments were carried out at Ukiriguru (semiarid zone), Tanzania during the period from 1989-91. Four cassava varieties used were, Msitu Zanzibar, Alpim valenca, Mzimbirala and Liongo control. The second experiment tested four cassava planting densities, 6666...
Kapinga, R.
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Omueti, J.A.
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Ekanayake, I.J.
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[Soil N, P, and land use efficiency under cassava/sweet potato intercropping system in Tanzania]
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Soil N, P, and land use efficiency under cassava/sweet potato intercropping system in Tanzania
Les sols tropicaux sont generalement peu fer-tiles, physiquement fragiles et facilement erodes en l'absence de tapis vegetal. Le labour est pratique dans les tropiques simplement pour lutter contre les adven-tices, mais il contribue it I'erosion acceleree des sols, etant donne qu'un sol cultive e...
Couper, D.C.
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[Le nonlabour dans les tropiques humides et subhumides dAfrique: Guide de recherche de lIita, No. 3]
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Le nonlabour dans les tropiques humides et subhumides dAfrique: Guide de recherche de lIita, No. 3
This edition of the West African Food Composition Table is a revised version of the Food composition table `Composition of Selected foods from West Africa`, which was published in September 2010. It extends and updates the number of foods and values of components through data derived from the Mal...
Stadlmayr, B.
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Food and Agriculture Organization of the United Nations
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International Network of Food Data Systems
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West African Health Organization
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Bioversity International
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[West African food composition table / Table de composition des aliments d’Afrique de l’Ouest]
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West African food composition table / Table de composition des aliments d’Afrique de l’Ouest
Most cities in developing countries fail to treat their wastewater comprehensively. Consequently, farmers downstream use poor-quality water for irrigation. This practice implies risks for farmers, consumers and the environment. Conversely, this water supply supports the livelihood of these farmer...
Saldias, C.
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Speelman, S.
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Drechsel, Pay
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Huylenbroeck, G. van
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[A livelihood in a risky environment: farmers’ preferences for irrigation with wastewater in Hyderabad, India]
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A livelihood in a risky environment: farmers’ preferences for irrigation with wastewater in Hyderabad, India
There is a proactive interest in recovering water, nutrients and energy from waste streams with the increase in municipal wastewater volumes and innovations in resource recovery. Based on the synthesis of wastewater data, this study provides insights into the global and regional “potential” of wa...
Qadir, Manzoor
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Drechsel, Pay
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Cisneros, B.J.
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Kim, Y.
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Pramanik, A.
,
Mehta, P.
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Olaniyan, O.
,
[Global and regional potential of wastewater as a water, nutrient and energy source]
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Global and regional potential of wastewater as a water, nutrient and energy source
Purpose: Faecal sludge (FS) has been co-composted with many organic solid wastes globally. Agricultural wastes, such as oil palm empty fruit bunches (EFB) and cocoa pod husks (CPH), have received very little research attention as far as combining with FS is concerned. This study aimed at co-compo...
Nartey, Eric Gbenatey
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Amoah, Philip
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Ofosu-Budu, G.K.
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Muspratt, A.
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Pradhan, Surendra K.
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[Effects of co-composting of faecal sludge and agricultural wastes on tomato transplant and growth]
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Effects of co-composting of faecal sludge and agricultural wastes on tomato transplant and growth
Load estimates are more informative than constituent concentrations alone, as they allow quantification of on- and off-site impacts of environmental processes concerning pollutants, nutrients and sediment, such as soil fertility loss, reservoir sedimentation and irrigation channel siltation. Whil...
Slaets, J.I.F.
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Piepho, Hans-Peter
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Schmitter, Petra S.
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Hilger, T.
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Cadisch, Georg
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[Quantifying uncertainty on sediment loads using bootstrap confidence intervals]
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Quantifying uncertainty on sediment loads using bootstrap confidence intervals