Search Results - "Breman, H."
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Mineral fertilizer management of maize on farmer fields differing in organic inputs in the West African savanna
Published in Field crops research (30-04-2006)“…Maize grain yield and response to N (0, 50, and 100 kg ha −1) and P fertilization (0, 15, and 30 kg ha −1) were determined for fields differing in history of…”
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Millet nutrient use efficiency as affected by natural soil fertility, mineral fertilizer use and rainfall in the West African Sahel
Published in Nutrient cycling in agroecosystems (01-05-2008)“…Field experiments were designed to investigate the effectiveness of integrated soil fertility management (ISFM), comparing fertilizer use efficiency and its…”
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Fast fieldmap-based EPI distortion correction with anatabacus: a plugin for BrainVoyager
Published in NeuroImage (Orlando, Fla.) (01-07-2009)“…In our C++ implementation (Figure 2), the correction can be quickly performed as part of the preprocessing before statistical analysis of the functional data,…”
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Long-term effects of fallow, tillage and manure application on soil organic matter and nitrogen fractions and on sorghum yield under Sudano-Sahelian conditions
Published in Soil use and management (01-03-2005)“…Soil organic matter (SOM) controls the physical, chemical and biological properties of soil and is a key factor in soil productivity. Data on SOM quantity and…”
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Nitrogen use efficiency by maize as affected by a mucuna short fallow and P application in the coastal savanna of West Africa
Published in Nutrient cycling in agroecosystems (01-03-2005)“…Maize is the primary food crop grown by farmers in the coastal savanna region of Togo and Benin on degraded (rhodic ferralsols), low in soil K-supplying…”
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The potential benefits of agroforestry in the Sahel and other semi-arid regions
Published in European journal of agronomy (01-09-1997)“…This article summarises results of three related studies. The first study is a synthesis and analysis of available knowledge on woody plants in semi-arid…”
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Rangeland productivity and exploitation in the Sahel
Published in Science (American Association for the Advancement of Science) (30-09-1983)“…Results of a Malian-Dutch research project on the Sahelian pastures and their utilization suggest reasons why some efforts to develop traditional livestock…”
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Using mucuna and P fertilizer to increase maize grain yield and N fertilizer use efficiency in the coastal savanna of Togo
Published in Nutrient cycling in agroecosystems (01-03-2004)“…To reduce severe soil degradation associated with agriculture an intensified land-use system is being promoted in West African countries. Most soils of the…”
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Synchronizing N release from organic residues: opportunities for integrated management of N
Published in TheScientificWorld (22-11-2001)“…In intensive cropping systems, mineral nitrogen (N) fertilizers represent the largest component of the N cycle because the indigenous N supply is not adequate…”
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The potential of agroforestry to increase primary production in the Sahelian and Sudanian zones of West Africa
Published in Agroforestry systems (1991)Get full text
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Germination and Establishment of Sahelian Rangeland Species. I. Seed Properties
Published in Oecologia (01-09-1989)“…In the context of a study on the dynamics of Sahelian rangelands, seed characteristics of about 30 species have been described, with particular attention to…”
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Germination and establishment of Sahelian rangeland species. II. Effects of water availability
Published in Oecologia (01-11-1990)“…In order to understand the vegetation dynamics of Sahelian rangelands, the effects of water availability on germination were investigated under controlled…”
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Desertification control, the West African case; prevention is better than cure
Published in Biotropica (01-06-1992)“…Programs for desertification control have to be formulated in response to the specific causes of environmental degradation. A method is presented to identify…”
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Revisiting a ‘cure against land hunger’: soil fertility management and farming systems dynamics in the West African Sahel
Published in Agricultural systems (01-05-2004)“…Analysis of agricultural production systems in West Africa at the end of the 1980s revealed that arable farming without external inputs would lead to expansion…”
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Resource limitations in Sahelian agriculture
Published in Global environmental change (01-04-2001)“…In general, Africa has poor soils and unfavorable climates for agriculture. This is specially so in the Sahel of West Africa. Moreover, poor infrastructure…”
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Dynamics of Sahelian pastures in relation to drought and grazing
Published in Oecologia (01-01-1977)“…The dynamics of the vegetation were studied in the transition zone from the savannah to the Sahel in order to distinguish between the influence of the recent…”
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Long-term effects of fallow, tillage and manure application on soil organic matter and nitrogen fractions and on sorghum yield under Sudano-Sahelian conditions
Published in Soil use and management (01-03-2005)“… Soil organic matter (SOM) controls the physical, chemical and biological properties of soil and is a key factor in soil productivity. Data on SOM quantity…”
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Journal Article -
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Influence de l'exploitation sur un paturage a Andropogon gayanus Kunth var. tridentatus
Published in Revue d'élevage et de médecine vétérinaire des pays tropicaux (1980)“…La biomasse élevée d'un pâturage sahélien non exploité à Andropogon gayanus pourrait donner une fausse impression de sa capacité de charge, car l'exploitation…”
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Journal Article -
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Metalloporphyrin phototoxicity
Published in Journal of photochemistry and photobiology. B, Biology (01-11-1990)“…The phototoxicities of six metalloporphyrin dimethylesters (i.e. cobalt (Co), copper (Cu), manganese (Mn), nickel (Ni), tin (Sn) and zinc (Zn) were…”
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Ecology and Development: An Attempt to Synthesize
Published in Environmental conservation (1986)“…In the context of ‘ecology’ and ‘development’, both these terms are usually ill-defined. Development, a finite process, is nevertheless conceived as…”
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