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Alternative Soil Fertility Management Options in Malawi - An Economic Analysis AgEcon
Sauer, Johannes; Tchale, Hardwick.
In this paper, we analyze the factors that influence the productivity of maize among smallholder farmers, given that unfavourable output and input market conditions throughout the 1990s have compelled smallholder farmers into unsustainable agricultural intensification. We use farm-household survey data in order to compare the productivity of smallholder maize production under integrated (ISFM) and chemical-based soil fertility management using a normalized translog yield response model. The results indicate higher maize yield responses for integrated soil fertility management options after controlling for the intensity of fertilizer application, labour intensity, seed rate, land husbandry practices as well as selected policy factors. The estimated model is...
Tipo: Conference Paper or Presentation Palavras-chave: Malawi; Smallholder agriculture; Soil fertility management; Yield response model; Livestock Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/21423
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Alternative Soil Fertility Management Options in Malawi – An Economic Analysis AgEcon
Sauer, Johannes; Tchale, Hardwick.
In this paper, we analyze the factors that influence t he productivity of maize among smallholder farmers, given that unfavourable output and input market conditions throughout the 1990s have compelled smallholder farmers into unsustainable agricultural intensification. We use farm-household survey data in order to compare the productivity of smallholder maize production under integrated (ISFM) and chemicalbased soil fertility management using a normalized translog yield response model. The results indicate higher maize yield responses for integrated soil fertility management options after controlling for the intensity of fertilizer application, labour intensity, seed rate as well as land husbandry practices a s well as selected policy factors. The...
Tipo: Conference Paper or Presentation Palavras-chave: Smallholder agriculture; Yield response model; Soil fertility management; Malawi; Land Economics/Use.
Ano: 2006 URL: http://purl.umn.edu/25407
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Poverty, property rights and land management in Uganda AgEcon
Birungi, Patrick; Hassan, Rashid M..
This study investigates the impact of poverty, social capital and land tenure on the adoption of soil fertility management (SFM) and conservation technologies in Uganda. Considering four land management technologies (fallowing, terracing and inorganic and organic fertilizers), the study estimates a multinomial logit model to link farmers’ characteristics to the choice of technologies. The findings show that investments in land management are driven by factors such as land tenure security, level of poverty and participation in community organizations (social capital), and, most importantly, that household level poverty reduces the probability of adoption of most of the technologies, while social capital and land tenure security increase it. The findings...
Tipo: Journal Article Palavras-chave: Poverty; Social capital; Property rights; Soil fertility management; Uganda; Food Security and Poverty; Land Economics/Use.
Ano: 2010 URL: http://purl.umn.edu/93881
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SOIL FERTILITY MANAGEMENT AND AGRICULTURAL PRODUCTIVITY IN MALAWI AgEcon
Tchale, Hardwick; Sauer, Johannes.
In this paper we analyze the factors that influence the productivity of maize among smallholder farmers. We use farm-household survey data in order to compare the productivity of smallholder maize production under integrated (ISFM) and chemical-based soil fertility management using a normalized translog yield response model. The results indicate higher maize yield responses for integrated soil fertility management options after controlling for the intensity of fertilizer application, labour intensity, seed rate, land husbandry practices as well as selected policy factors. The estimated model is highly consistent with theoretical conditions. Thus we conclude that the use of ISFM improves maize productivity, compared to the use of inorganic fertilizer only....
Tipo: Conference Paper or Presentation Palavras-chave: Malawi; Smallholder agriculture; Soil fertility management; Yield response model; Farm Management.
Ano: 2006 URL: http://purl.umn.edu/14954
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Soil Fertility Management And Maize Productivity In Malawi: Curvature Correct Efficiency Modeling And Simulation AgEcon
Tchale, Hardwick; Sauer, Johannes.
We assess the level and determinants of relative technical efficiency of maize-based smallholder farmers using a translog stochastic frontier (TL) model and a symmetric generalized Barnett production function (SGB), both of which are tested for economic regularity conditions. In addition, we conduct a bootstrapping procedure in order to infer about the probability distributions and significance of the relative efficiency values for farmers using different soil fertility management options. The results indicate that higher levels of relative technical efficiency obtain when farmers use integrated soil fertility options compared to the use of chemical fertilizer only. The consistency of the results across the two models increase the robustness of the...
Tipo: Conference Paper or Presentation Palavras-chave: Smallholder agriculture; Relative technical efficiency; Soil fertility management; Malawi; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; International Relations/Trade; Labor and Human Capital; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008 URL: http://purl.umn.edu/52077
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Soil Fertility Management Choice in the Maize-Based Smallholder Farming System in Malawi AgEcon
Wobst, Peter; Tchale, Hardwick; Frohberg, Klaus.
The paper analyses the factors that affect smallholder farmers’ choice of soil fertility management options in Malawi using a two-stage maximum likelihood estimation procedure. Using results from the Double-Hurdle model, the paper estimates the probabilities and intensities of fertilizer application conditional on choice of inorganic fertilizer. The findings indicate that relative wealthy indicators, human capital, credit and market access, food security index and land pressure are the main factors that greatly influence farmers’ choice and intensity of input investment. Although there is a high and positive correlation between probability of adoption and intensity of application, factors that influence adoption are not necessarily the same as those that...
Tipo: Conference Paper or Presentation Palavras-chave: Soil fertility management; Smallholder farmers; Double-Hurdle model; Malawi; Resource /Energy Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/9524
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The Green Revolution in Zimbabwe AgEcon
Alumira, Jane; Rusike, Joseph.
This paper presents a historical overview of plant breeding research, variety release and seed supply of staple food grains in Zimbabwe, and assesses the impacts of the new varieties on yields using national aggregate yield data. The paper also analyses farm-level factors determining farmers’ adoption decisions in the semi-arid areas, where the mini-green revolution lagged behind more favorable areas. The results indicate that the adoption of improved crop varieties will not lead to substantial yield gains unless improved soil management methods, such as application of manure and fertilizer, are also adopted..
Tipo: Journal Article Palavras-chave: Green Revolution; Maize; Semi-arid areas; Soil fertility management; Drought; Zimbabwe; International Development.
Ano: 2005 URL: http://purl.umn.edu/110144
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