scholarly journals Improving Soil Fertility and Crops Yield through Maize-Legumes (Common bean and Dolichos lablab) Intercropping Systems

2016 ◽  
Vol 8 (12) ◽  
pp. 148 ◽  
Author(s):  
Prosper I. Massawe ◽  
Kelvin M. Mtei ◽  
Linus K. Munishi ◽  
Patrick A. Ndakidemi
Keyword(s):  
Soil Fertility ◽  
Smallholder Farmers ◽  
Cropping Systems ◽  
Plant Nutrients ◽  
Sub Saharan Africa ◽  
Cereal Crops ◽  
Inorganic Fertilizers ◽  
Sub Saharan ◽  
Crops Yield ◽  
Biological Nitrogen

Declining crops yield in the smallholder farmers cropping systems of sub-Saharan African (SSA) present the need to develop more sustainable production systems. Depletion of essential plant nutrients from the soils have been cited as the main contributing factors due to continues cultivation of cereal crops without application of organic/ inorganic fertilizers. Of all the plant nutrients, reports showed that nitrogen is among the most limiting plant nutrient as it plays crucial roles in the plant growth and physiological processes. The most efficient way of adding nitrogen to the soils is through inorganic amendments. However, this is an expensive method and creates bottleneck to smallholder farmers in most countries of sub-Saharan Africa. Legumes are potential sources of plant nutrients that complement/supplement inorganic fertilizers for cereal crops because of their ability to fix biological nitrogen (N) when included to the cropping systems. By fixing atmospheric N2, legumes offer the most effective way of increasing the productivity of poor soils either in monoculture, intercropping, crop rotations, or mixed cropping systems. This review paper discuses the role of cereal legume intercropping systems on soil fertility improvement, its impact on weeds, pests, diseases and water use efficiency, the biological nitrogen fixation, the amounts of N transferred to associated cereal crops, nutrients uptake and partition, legume biomass decomposition and mineralization, grain yields, land equivalent ratio and economic benefits.

scholarly journals Modelling smallholder farmers’ preferences for soil fertility management technologies in Benin: A stated preference approach

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0253412
Author(s):  
Segla Roch Cedrique Zossou ◽  
Patrice Ygue Adegbola ◽  
Brice Tiburce Oussou ◽  
Gustave Dagbenonbakin ◽  
Roch Mongbo
Keyword(s):  
Soil Fertility ◽  
Agricultural Development ◽  
Latent Class ◽  
Local Economic Development ◽  
Stated Preference ◽  
Smallholder Farmers ◽  
Latent Class Models ◽  
Sub Saharan Africa ◽  
Soil Fertility Management ◽  
Sub Saharan

The decline of soil fertility is a major constraint which results in lower levels of crop productivity, agricultural development and food security in Sub-Saharan Africa. This study is the first to perform a focalized investigation on the most interesting technological profiles to offer to each category of producers in Benin agricultural development hubs (ADHs) using the stated preference method, more precisely, the improved choice experiment method. The investigation focused on 1047 sampled plots from 962 randomly selected producers in villages of the Smallholder Agricultural Productivity Enhancement Program in Sub-Saharan Africa of the ADHs. An analysis of the experimental choice data with the endogenous attribute attendance and the latent class models was carried out to account for the attribute non-attendance phenomenon and the heterogeneity of the producers’ preferences. However, three classes of producer with different socio-economic, demographic, and soil physicochemical characteristics were identified. Thus, the heterogeneity of preferences was correlated with the attributes linked to the cost, sustainability, and frequency of plot maintenance. All producers, regardless of the ADHs, had a strong attachment to accessibility of technologies with short time restoration of soil fertility, and the ability to obtain additional benefits. These latest attributes, added to that relating to cost, tended to have a low probability of rejection in the decision-making process. These results have implications for local decision-makers facing the complex problem of resolving land degradation and local economic development challenges. The generalizability of these findings provides useful insight and direction for future studies in Sub-Saharan Africa.

scholarly journals Impact of Soil Fertility Improving Trees on Crop Productivity and Farmer Wealth in Zambia

2017 ◽  
Vol 6 (3) ◽  
pp. 14
Author(s):  
Elias Kuntashula
Keyword(s):  
Soil Fertility ◽  
Field Experiments ◽  
Resource Constraints ◽  
Smallholder Farmers ◽  
Information Access ◽  
Crop Productivity ◽  
Sub Saharan Africa ◽  
Wealth Creation ◽  
Maize Productivity ◽  
Sub Saharan

There has been low uptake of soil fertility improving tree technologies that have been promoted as alternatives to the costly inorganic fertiliser among the poor resource farmers of Sub Saharan Africa. This is surprising given that the majority of smallholder farmers cannot afford inorganic fertilisers. Are these technologies effective? Using data collected in 2013 from 1,231 households across six districts of Zambia, this study showed that the tree technologies increased maize productivity. However, increases in maize productivity were less than those obtained from controlled on-station and field experiments where the technologies could double or more than double maize productivity according to literature. The technologies capacity to marginally contribute to wealth creation was confirmed. Socioeconomic constraints including labour, information access, land and credit need to be tackled for the technologies to give maximum benefits. Research on fertiliser trees should therefore be redirected towards the discovery of such resource constraints saving technologies. 

scholarly journals Soil Nutrients and Maize Yields Responses to Agroforestry Tree Post-fallows Management in Tanzania

2021 ◽  
Author(s):  
Vincent G. Vyamana ◽  
Shabani A.O. Chamshama ◽  
Samora Macrice Andrew
Keyword(s):  
Soil Fertility ◽  
Smallholder Farmers ◽  
Maize Yield ◽  
Sub Saharan Africa ◽  
Degraded Land ◽  
Agricultural Technologies ◽  
Short Rotation ◽  
Continuous Maize ◽  
Development Goals ◽  
Sub Saharan

Abstract Agriculture forms a backbone of many countries in sub-Saharan Africa (SSA) thus has the potential to contribute to achieving Sustainable Development Goals (SDGs). However, agriculture in the SSA is characterized by low production due to soil fertility depletion. Use of appropriate low input agricultural technologies may increase production and benefit smallholder farmers through increased productivity in already degraded land. A field experiment was established to assess tree coppice intercropping of Albizia harveyi and Albizia versicolor for soil fertility and maize yield improvements in Morogoro, Tanzania. Tree fallows of A. versicolor aged three years increased significantly soil organic Carbon, Calcium, Magnesium and Potassium. Yields of maize grain, cobs and stover in maize fields intercropped with A. versicolor were significantly higher than those with A. harveyi. Fields with continuous maize cropping had the least yields of grain, cobs and stover. The studied agroforestry tree species are recommended for rotational woodlots and short rotation coppice systems to enhance agricultural productivity for achieving SDGs.

scholarly journals Rock phosphate and lime for small-scale farming in Tanzania, East Africa

1969 ◽  
Vol 26 ◽  
pp. 85-88 ◽  
Author(s):  
Per Kalvig ◽  
Niels Fold ◽  
Jesper Bosse Jønsson ◽  
Elisante Elisaimon Mshiu
Keyword(s):  
Sustainable Agriculture ◽  
Soil Fertility ◽  
East Africa ◽  
Rock Phosphate ◽  
Smallholder Farmers ◽  
Sub Saharan Africa ◽  
Small Scale ◽  
African Countries ◽  
Significant Challenge ◽  
Sub Saharan

Poor soils are a major cause of poverty in sub-Saharan Africa, and thus restoration of soil fertility is a significant challenge for sustainable agriculture. Some of the main resources required, e.g. phosphate and lime, are present in many African countries and can be used by smallholder farmers in a relatively unprocessed form instead of expensive commercial fertilisers. Here we present a small study of the Mbeya region in Tanzania, which locally has both phosphate and lime.

scholarly journals Precision Agriculture for Resource Use Efficiency in Smallholder Farming Systems in Sub-Saharan Africa: A Systematic Review

2021 ◽  
Vol 13 (3) ◽  
pp. 1158
Author(s):  
Cecilia M. Onyango ◽  
Justine M. Nyaga ◽  
Johanna Wetterlind ◽  
Mats Söderström ◽  
Kristin Piikki
Keyword(s):  
Resource Use ◽  
Precision Agriculture ◽  
Large Scale ◽  
English Language ◽  
Management Practices ◽  
Smallholder Farmers ◽  
Management Strategies ◽  
Sub Saharan Africa ◽  
Smallholder Farming ◽  
Sub Saharan

Opportunities exist for adoption of precision agriculture technologies in all parts of the world. The form of precision agriculture may vary from region to region depending on technologies available, knowledge levels and mindsets. The current review examined research articles in the English language on precision agriculture practices for increased productivity among smallholder farmers in Sub-Saharan Africa. A total of 7715 articles were retrieved and after screening 128 were reviewed. The results indicate that a number of precision agriculture technologies have been tested under SSA conditions and show promising results. The most promising precision agriculture technologies identified were the use of soil and plant sensors for nutrient and water management, as well as use of satellite imagery, GIS and crop-soil simulation models for site-specific management. These technologies have been shown to be crucial in attainment of appropriate management strategies in terms of efficiency and effectiveness of resource use in SSA. These technologies are important in supporting sustainable agricultural development. Most of these technologies are, however, at the experimental stage, with only South Africa having applied them mainly in large-scale commercial farms. It is concluded that increased precision in input and management practices among SSA smallholder farmers can significantly improve productivity even without extra use of inputs.

scholarly journals REVIEW OF SEASONAL CLIMATE FORECASTING FOR AGRICULTURE IN SUB-SAHARAN AFRICA

2011 ◽  
Vol 47 (2) ◽  
pp. 205-240 ◽  
Author(s):  
JAMES W. HANSEN ◽  
SIMON J. MASON ◽  
LIQIANG SUN ◽  
ARAME TALL
Keyword(s):  
Smallholder Farmers ◽  
Seasonal Forecast ◽  
Sub Saharan Africa ◽  
Seasonal Forecasting ◽  
Seasonal Forecasts ◽  
Climate Services ◽  
Seasonal Climate ◽  
Climate Forecasting ◽  
Probabilistic Forecasts ◽  
Sub Saharan

SUMMARYWe review the use and value of seasonal climate forecasting for agriculture in sub-Saharan Africa (SSA), with a view to understanding and exploiting opportunities to realize more of its potential benefits. Interaction between the atmosphere and underlying oceans provides the basis for probabilistic forecasts of climate conditions at a seasonal lead-time, including during cropping seasons in parts of SSA. Regional climate outlook forums (RCOF) and national meteorological services (NMS) have been at the forefront of efforts to provide forecast information for agriculture. A survey showed that African NMS often go well beyond the RCOF process to improve seasonal forecast information and disseminate it to the agricultural sector. Evidence from a combination of understanding of how climatic uncertainty impacts agriculture, model-based ex-ante analyses, subjective expressions of demand or value, and the few well-documented evaluations of actual use and resulting benefit suggests that seasonal forecasts may have considerable potential to improve agricultural management and rural livelihoods. However, constraints related to legitimacy, salience, access, understanding, capacity to respond and data scarcity have so far limited the widespread use and benefit from seasonal prediction among smallholder farmers. Those constraints that reflect inadequate information products, policies or institutional process can potentially be overcome. Additional opportunities to benefit rural communities come from expanding the use of seasonal forecast information for coordinating input and credit supply, food crisis management, trade and agricultural insurance. The surge of activity surrounding seasonal forecasting in SSA following the 1997/98 El Niño has waned in recent years, but emerging initiatives, such as the Global Framework for Climate Services and ClimDev-Africa, are poised to reinvigorate support for seasonal forecast information services for agriculture. We conclude with a discussion of institutional and policy changes that we believe will greatly enhance the benefits of seasonal forecasting to agriculture in SSA.

scholarly journals Factors That Matter for Financial Inclusion: Evidence from Sub-Sharan Africa - The Zimbabwe Case

2021 ◽  
Vol 10 (6) ◽  
pp. 48
Author(s):  
David Mhlanga
Keyword(s):  
Smallholder Farmers ◽  
Multinomial Logistic Regression ◽  
Multinomial Logit Model ◽  
Financial Inclusion ◽  
Sub Saharan Africa ◽  
Farm Income ◽  
Smallholder Farming ◽  
Hand Off ◽  
Sub Saharan ◽  
The Government

The study intended to investigate the factors that are important in influencing the financial inclusion of smallholder farming households in Sub-Saharan Africa with a specific focus on Zimbabwe. Motivated by the fact that there is an increase in the evidence of the importance of financial inclusion in fighting poverty and the fact that by merely having a bank account, financial inclusion cannot be guaranteed, the study went further to interrogate factors that influence smallholder farmers to have a transaction account, to borrow and to have insurance. Since the dependent variable of financial inclusion had more than two categories, with three unordered categories, transaction account, savings/credit account, and insurance, the multinomial logistic regression was used to estimate the determinants of financial inclusion from these three categories of the dependent variable. The multinomial logit model results, with insurance as the reference category, indicated that the size of the household, transaction costs, gender and agricultural extension service were the factors influencing the demand for a household to open a transaction account. On the other hand, off-farm income and age of the household were the only two factors significantly influencing households to borrow. Therefore, it is imperative for, the government of Zimbabwe to come up with more policies that encourage farmers to participate in the formal financial market as financial inclusion can help to fight poverty and the general developments of societies.   Received: 28 April 2021 / Accepted: 31 August 2021 / Published: 5 November 2021

scholarly journals A Multi-Phase Assessment of the Effects of COVID-19 on Food Systems and Rural Livelihoods in Zimbabwe

2021 ◽  
Author(s):  
Vine Mutyasira
Keyword(s):  
Food Systems ◽  
Smallholder Farmers ◽  
Rapid Assessment ◽  
Policy Research ◽  
Rural Livelihoods ◽  
Mitigation Strategies ◽  
Sub Saharan Africa ◽  
Response Measures ◽  
Sub Saharan ◽  
Multi Phase

The COVID-19 pandemic has continued to affect agri-food systems around the world and lay bare its fragility, worsening the welfare of millions of smallholder farmers whose livelihoods are anchored on agricultural activities. For the vast majority of sub-Saharan Africa, COVID-19 has coincided with a number of other macroeconomic shocks, which have also exacerbated the impacts of the pandemic on food security, nutrition and general livelihoods, as well curtailed policy responses and mitigation strategies. In Zimbabwe, the COVID-19 pandemic struck at a time the country was experiencing a worsening economic and humanitarian situation. This study focused more on community and household dynamics and response measures to cope with the pandemic. This paper presents a summary of findings emerging from a series of rapid assessment studies undertaken by the Agricultural Policy Research in Africa (APRA) Programme in Mvurwi and Concession areas of Mazowe District in Zimbabwe to examine how COVID-19 is affecting food systems and rural livelihoods in our research communities.

scholarly journals A Strategy for Technology Development for Semi-Arid Sub-Saharan Africa

1998 ◽  
Vol 27 (3) ◽  
pp. 157-161
Author(s):  
John H. Sanders ◽  
Barry I. Shapiro ◽  
Sunder Ramaswamy
Keyword(s):  
Development Strategy ◽  
Water Availability ◽  
New Technologies ◽  
Technology Development ◽  
Organic Fertilizer ◽  
Sub Saharan Africa ◽  
Inorganic Fertilizers ◽  
Strategy Evaluation ◽  
Sub Saharan ◽  
Semi Arid

This article proposes a strategy for agricultural technology development for semi-arid West Africa. The strategy evaluation consists of two aspects: a) a review of the successes in the region; and b) analysis with mathematical programming of the potential impacts and constraints to various new technologies tested in the region. The technology development strategy indicates how further productivity gains can be made by responding to the two principal constraints of water availability and soil fertility. These constraints must be simultaneously resolved but the strategy needs to be adapted for different soil characteristics and economic environments. The major emphasis is on the importance of the rapid introduction of inorganic fertilizers combined with techniques to increase water availability; organic and inorganic fertilizers need to be considered complements in the semi-arid regions. Farmers are already introducing labour intensive variations of these techniques in the most degraded regions. The policy concern is to encourage government policymakers to put a high priority on fertilizer and increase the availability of inorganic fertilizer while research efforts continue to develop improved methods for complementary use of organic fertilizer.

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