Toudou DAOUDA Abdoul Karim

• PHD
• Research Assistant at Abdou Moumouni University

The role of cowpea in improving soil fertility has been extensively studied at the rhizosphere level, yet its impact on bare soil properties remains unclear. Soil fertility management is crucial for sustainable agriculture, particularly in the context of climate change. This study evaluates the short-term effects of cowpea and mineral fertilization...

Weed control is one of the most important constraints to crop production. This study was undertaken in the south-east of Niger. The aim of the study was to assess the impact of weed control on millet production in this area. Experiments focused on the growth (height and tillering) and grain weight of millet plants subjected to competition from Cass...

The Bambara Groundnut (Vigna subterranea (L.) Verdc) is a neglected crop species' third most important legume. It is cultivated for its numerous benefits. However, in the current context of decreasing rainfall, seed germination is often slow or even absent, leading to low yields. This study aims to evaluate the effect of seed priming on the phenolo...

Weed infestation is, after the negative effects of climate variability and change, the second most important factor in grain reduction. The present study, carried out in the southeast of Niger, aims to determine the weeding period that can influence millet production. The experimental setup used is a complete Fisher block, comprising 36 elementary...

An experiment was conducted in the field to evaluate the effect of phosphorus fertilization in microdose using organic and mineral fertilizers on the yield and profitability of cowpea cultivation. To achieve this, a balanced application of NPK and granular compost was provided to supply the same amount of phosphorus to the cowpea. Three treatments...

In Niger, cowpea is primarily cultivated under rainfed conditions and therefore often suffers from water stress at the end of its cycle. However, cultivating dual-purpose varieties during the cold dry season can help minimize the effects of water stress and improve cowpea production. A field study was conducted to assess the seasonal effect (cold d...

In Niger, livestock feed is mainly based on natural pasture and crop residues. With climate change and demographic pressure, available land for grazing is becoming less; it is also becoming populated by invasive plants that are not palatable to animals, and consequently fodder deficits are being recorded in each agricultural season. This study asse...

In Niger, livestock feed is mainly based on natural pasture and crop residues. With climate change and demographic pressure, available land for grazing is becoming less; it is also becoming populated by invasive plants that are not palatable to animals, and consequently fodder deficits are being recorded in each agricultural season. This study asse...

Niger, with a diversified agricultural production system, is dominated by the cultivation of millet for cereals, and cowpea for legumes where they are most often grown in combination. Among the cereal/legume combinations observed, the millet/cowpea combination is by far the most used by producers. This study aimed to evaluate the field experiment i...

Climate change is affecting crop production in the West Africa Sahel. Farmers develop many adaptation strategies However, few of them have been tested to find their climate smartness, primarily their agronomic and economic benefits. Therefore, this study aimed to evaluate the field experiment in two successive years, 2020 and 2021, in rainy conditi...

Okra, (Abelmoschus esculentus (L.) Moench), is grown as a sole crop and asa field crop in Niger. In the present study, three okra varieties from Zinderregion in Niger Republic have been assessed for their agronomic perfor-mance traits. The experiment was conducted in a randomized completeblock design with three replications during the dry season 20...

L’oseille de Guinée (Hibiscus sabdariffa L.) est une culture importante en raison de ses feuilles, calices et graines qui jouent un rôle socio-économique considérable pour les populations du sahel. L’objectif principal de ces expérimentations est d’évaluer l’effet de la fertilisation minérale de NPK (15-15-15), afin de déterminer la dose optimale...

Garlic belongs to the Allium genus, which includes more than 750 species divided into more than 60 taxonomic groups. It is cultivated in many countries throughout the world for the bulb and used as a spice and functional food. The plant vegetatively propagates. This review will focus on origins, biology, analysis of genetic diversity, pharmacologic...

Objective: In Niger, cowpea plays an important socio-economic role because of its richness in protein and the income it generates to producers. This work aims to study the effect of stress of water deficit at the vegetative stage of five cowpea varieties. Methodology and results: Experimentation was carried out in 16-liter pots that are holed at th...

This study is on the seeding and the initial growth of a food species, Diospyros mespiliformis, in Niger. Diospyros mespiliformis is an overexploited food species in Niger. The aim of this study is to determine the optimal conditions for germination and seedling growth of this species. In doing so, seed germination tests were conducted in petri dis...

In Niger, agricultural production is based mainly on the association and rotation grains / legumes with generally low yields. To improve these yields, seeding effects and cowpea genotypes in combination with millet were studied in 2014 and 2015 in the Sahel region of Niger. The experimental device is a split plot design with three replications. cow...

ABSTRACT Millet and cowpea intercropping system, the most widespread in Niger has high potential and can increase smallholders’ farmer productivity if proper techniques are applied. In order to evaluate the effect of density and cowpea genotypes on the growth and yield of millet and cowpea in intercropping, an experiment was conducted in the field...