Effet De La Combinaison Régénération Naturelle Assistée (RNA) Et Microdose D’engrais Sur La Production Du Mil (Pennisetum Glaucum (L.) R.Br) Dans Les Zones Agro-Écologiques Du Centre-Sud Du Niger

Félix, Zounon Christian Serge; Abasse, Tougiani; Massaoudou, Moussa; Rabiou, Habou; Vincent, Bado; Tidjani, Didier; Karimou, Ambouta

doi:10.19044/esj.2020.v16n6p317

Cited by 3 publications

(4 citation statements)

References 4 publications

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“…Farmers invest in trees mainly to maintain or improve the fertility of their soils and they are very aware of the impact of certain species on fertility, which is confirmed by many studies (Mansour et al, 2013;Camara et al, 2017;Dan Lamso et al 2015a, 2015bZounon et al, 2020;Traoré, 2012;Bodo et al, 2019). The results showed that the practise of FMNR improves chemical fertilizer content, 2012) who reports that organic matter and nitrogen levels are higher in soils under tree canopies than outside.…”

Section: Soil Fertilitymentioning

confidence: 81%

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Farmer managed natural regeneration in Niger: the state of knowledge

Abasse¹,

Massaoudou²,

Ribiou³

et al. 2023

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Faced with environmental degradation and strong land pressure, farmers in south-central Niger have intensified their agricultural production systems. Since the 1980s, farmers in the regions of Zinder, Maradi and Tahoua have increased the number of trees and shrubs on their fields, creating new agroforestry parklands over about 5 million hectares. This regreening is not based on tree planting, however, but on farmers protecting and managing natural regeneration of woody species on their crop lands. This has been well documented over the years, but until now, there has not been a thorough review of all of the published peer-referenced as well as grey literature. This report presents the first comprehensive state of knowledge of farmer managed natural regeneration (FMNR) in Niger. Studies show the scale and dynamics of FMNR as well as its multiple impacts. It has increased crop yields (+31 kg/ha to +350 kg/ha), and that supports family food security even in drought years. FMNR has increased the income of all social categories, even the most vulnerable women, men and youth, through the sale of fuelwood and service wood. The pruning of trees in fields has also reduced the distances travelled by women to collect fuelwood. FMNR increased the availability of fodder from trees to farmers and agropastoralists, with households practising FMNR harvesting 30-45 kg of fodder per day. Economists have not calculated all the multiple impacts in monetary terms, but studies on the costs and benefits all indicate that it is economically rational for farmers to invest their labour in FMNR. The costs are modest (no equipment and little labour), and the benefits are substantial, also helping smallholder farmers adapt to climate change, while sequestering millions of tonnes carbon. As a consequence of FMNR, tree cover has been sustained without external incentives (e.g. food or cash-for-work), an outcome that distinguishes this farmer-driven practice from large-scale tree planting projects where farmers’ stewardship ended when the external incentives ended. Agroforestry landscapes are thus being created at scale due to decisions made by hundreds of thousands of individual farmers. It is hoped that information in this report that shows the clear benefits of FMNR in Niger will encourage policy makers in Africa’s drylands to invest in the promotion of FMNR. This foundational practice must form the backbone of landscape wide initiatives if the ambitious targets of the Great Green Wall, AFR100 and similar ambitious restoration initiatives are to be achieved. FMNR is a low cost sustainable land use management practice with a considerable potential for scaling, which can and must be adopted and scaled immediately.

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Section: Soil Fertilitymentioning

confidence: 81%

“…The combination of assisted natural regeneration plus organic manure plus NPK mineral fertilizer resulted in the highest millet grain and straw yields in the Sahelo-Sudanian zone (464 ±214 kg/ha for grain and 2126 ±1193kg/ha for straw) (Zounon et al, 2020).…”

Section: Agricultural Yields and Food Securitymentioning

confidence: 99%

Farmer managed natural regeneration in Niger: the state of knowledge

Abasse¹,

Massaoudou²,

Ribiou³

et al. 2023

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“…Improving soil fertility under RNA is one of the primary objectives of natural assisted regeneration. Farmers invest in trees mainly to maintain or improve the fertility of their soils, and the impact of certain species on chemical fertility has been confirmed by several studies (Mansour et al, [21] Camara et al, 2017; Dan Lamso et al [22,23] Zounon et al, [24] Traoré, 2012; Bodo et al, [25] Soil analysis results showed that the content of certain nutrients was much higher in fields under RNA compared with control areas not under RNA. These include C (%), N (%), K (meq/100g) and C/N.…”

Section: Discussionmentioning

confidence: 91%

How does Assisted Natural Regeneration (ANR) Improve Soil Fertility and Plant Cover in the Simiri Commune in Niger?

Boukary,

Djabri,

Boureima

et al. 2023

IJECC

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Aims: This study aimed to assess Assisted Natural Regeneration (ANR) impacts on improving soil fertility and plant cover through the physicochemical characterization of soil samples taken from ANR fields and control fields. Study Design: The experimental design is made up of a vegetation observation gradient along an East-West transect and a soil sampling gradient along a North-South transect. Place and Duration of Study: This study was carried out in the Sahelian zone in the rural commune of Simiri in Niger between May and June 2023. Methodology: Data on the diversity of species predominant in the ANR system, the social categories of ANR users and farmers' perceptions of ANR were collected on a sample of 120 farmers chosen at random from three villages in the commune of Simiri. Results: A sandy texture was recorded in all the samples submitted for analysis, with an overall acid of soil pH (5.18 ⁃ 5.62). The proportions of the main nutrients: C(0,16), N(0,015), P(6,88), K(0,066), Mo(0,30) C/N(10,83) were relatively higher in the fields under ANR practices compared with the control fields. With regard to the dominant woody species, the results show that the stands are mainly based on Combretum glutinosum, Combretum micranthum and Guera senegalensis. The ability of woody species to withstand stressful conditions could act as a bulwark against climatic hazards. The strong dominance of these species is due, among other things, to their regenerative capacity, their rapid spread and, above all, their economic interest in the production of firewood and other ecosystem services. Conclusion: The Assisted Natural Regeneration (ANR) adoption in farming practices has often been accompanied by the creation of village committees for the protection and management of trees and other areas of sustainable natural resource management. Despite mutilation and other illegal felling, the new agroforestry parks increase the resilience of agricultural production systems to climatic shocks and biotic stresses.

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“…Le témoin se caractérise par un bon rendement en épis (REP) et un nombre élevé en épis (NEP). Cette différence pourrait être liée aux variétés, à la pratique de la RNA et aux conditions pédoclimatiques des zones d'études (Zounon et al, 2020). Aussi, l'un des facteurs qui influenceraient la croissance et le tallage est la densité du mil.…”

Section: Analyse En Composante Principale (Acp)unclassified

Effets de Faidherbia albida (Delile) sur Certains Paramètres de Croissance et de Rendement du Mil [Pennisetum glaucum (L.) R. Br], en Milieu Paysan, dans la Commune de Tibiri

Rabo,

Mahaman Sadikou,

Mahamane

2024

ESJ

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Cette étude a été conduite en milieu paysan dans la commune de Tibiri, où la pratique de la régénération naturelle assistée, RNA est bien ancrée dans les pratiques culturales des populations. L’objectif générale est d’étudier les effets de F. albida sur les paramètres de croissance et de rendement du mil (Pennisetum glaucum). Pour ce faire, une expérimentation a été conduite dans le Village de Waraou ayant plus de dix ans d’expérience dans la pratique de la RNA. Un dispositif expérimental a été installé sur le site avec des placettes annulaires concentriques centrées sur le tronc d’arbre. Ainsi, trois (3) auréoles R1, R2 et R3, du tronc de l’arbre vers l’extérieur du houppier, ont été définies pour chacun des individus. En vue de comparant les résultats avec une situation de référence, des témoins où le sol est supposé être hors influence de l’arbres ont aussi été installés donnant ainsi quatre traitements à savoir la 1ère, la 2ème, la 3ème auréole et le témoin. Les paramètres étudiés sont les paramètres de croissance et les paramètres de rendement. Enfin, une analyse en composante principale (ACP) a été effectuée pour comprendre les liens entre les paramètres étudiés et les différents traitements appliqués. Les résultats ont montré qu’il n y’a pas eu de différence statistiquement significative entre tous les traitements au niveau des paramètres étudiés sauf pour le paramètre de rendement en biomasse. L’ACP a fait ressortir que la 1ère et la 2ème auréoles sont caractérisées par beaucoup de feuilles, un bon diamètre de la tige principale et un bon diamètre en épis alors que la 3ème auréole se caractérise par des feuilles larges et un bon rendement en grain. Le témoin se caractérise par un bon rendement en épis et un nombre élevé en épis. Les résultats obtenus témoignent que F. albida améliore conséquemment les paramètres de croissance et de rendement du mil. This study was carried out in a farming environment in the commune of Tibiri, where the practice of RNA, assisted natural regeneration, is well anchored in the cultural practices of the populations. The main objective is to study the effects of Faidherbia albida on the growth and yield parameters of millet (Pennisetum glaucum). Thus, an experiment was conducted in the Village of Waraou wich has more than ten years of experience in RNA practicing. An experimental device was installed on the site with concentric annular plots centered on the tree trunk. Therefore, three (3) aureole R1, R2 and R3, from the trunk of the tree outwards, were defined for each individual. To comparing the results with a reference situation, controls where soil is assumed to be outside of tree’s influence giving so four treatments namely the 1st, 2nd, 3rd aureoles and the control. The parameters studied are growth parameters and yield parameters. Finally, a principal component analysis (PCA) was carried out to understand the links between the parameters studied and the different treatments applied. The results showed that there was no statistically significant difference between all the treatments in terms of the parameters studied except for the biomass yield parameter. The PCA shows that the 1st and 2nd aureoles are characterized by many leaves, a good diameter of the main stem and a good ear diameter while the 3rd aureole is characterized by wide leaves and a good grain yield. The control is characterized by a good yield of ears and a high number of ears. Results obtained demonstrate that F. albida consequently improves the growth and yield parameters of millet.

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Effet De La Combinaison Régénération Naturelle Assistée (RNA) Et Microdose D’engrais Sur La Production Du Mil (Pennisetum Glaucum (L.) R.Br) Dans Les Zones Agro-Écologiques Du Centre-Sud Du Niger

Cited by 3 publications

References 4 publications

Farmer managed natural regeneration in Niger: the state of knowledge

Farmer managed natural regeneration in Niger: the state of knowledge

How does Assisted Natural Regeneration (ANR) Improve Soil Fertility and Plant Cover in the Simiri Commune in Niger?

Effets de Faidherbia albida (Delile) sur Certains Paramètres de Croissance et de Rendement du Mil [Pennisetum glaucum (L.) R. Br], en Milieu Paysan, dans la Commune de Tibiri

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