Soil Fertility, Fertilizer, and the Maize Green Revolution in East Africa
This paper investigates the reasons for the low application of external fertilizers on farms in Kenya and Uganda. The analysis uses a large panel of household data with rich soil fertility data at the plot level. The authors control for maize seed selection and household effects by using a fixed-effects semi-parametric endogenous switching model. The results suggest that Kenyan maize farmers have applied inorganic fertilizer at the optimal level, corresponding to the high nitrogen-maize relative price, in one of the two survey years and also responded to the price change over time. In Uganda, even the low application of inorganic fertilizer is not profitable because of its high relative price. The authors conclude that policies that reduce the relative price of fertilizer could be effective in both countries, while the efficacy of policies based on improving farmers' knowledge about fertilizer use will be limited as long as the relative price of fertilizer remains high.
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dig-okr-10986199602024-08-08T16:14:39Z Soil Fertility, Fertilizer, and the Maize Green Revolution in East Africa Matsumoto, Tomoya Yamano, Takashi AGRICULTURAL DEVELOPMENT AGRICULTURAL PRODUCTION AGRICULTURAL SCIENCE AGRICULTURAL TECHNOLOGY AGROFORESTRY ANIMALS CARBON CONTENT CEREAL CROPS CEREALS CHEMICAL FERTILIZER CLIMATE CO CROP CROP PRODUCTION CROP RESIDUE CROPPING CROPPING SYSTEMS CROPS DAP ECOSYSTEMS EXTERNAL INPUTS FARM FARM HOUSEHOLDS FARMER FARMERS FARMS FERTILIZER FERTILIZER APPLICATION FERTILIZER APPLICATIONS FERTILIZER MARKET FERTILIZER RESEARCH FERTILIZER TYPE FERTILIZER USE FERTILIZERS FOOD CROP FOOD POLICY FOOD POLICY RESEARCH FOOD RESEARCH GREEN REVOLUTION GROWTH IN AGRICULTURE HARVESTING HIGH YIELDING VARIETIES HOUSEHOLD LEVEL INTERNATIONAL FOOD POLICY RESEARCH INSTITUTE LAND DEGRADATION LAND MANAGEMENT LAND USE MAIZE MAIZE FARMERS MAIZE PRODUCTION MAIZE PRODUCTIVITY MAIZE REVOLUTION MAIZE SEED MAIZE TECHNOLOGY MAIZE YIELDS MANURES MARKET DEVELOPMENT MARKETING COSTS NEGATIVE IMPACT NITROGEN NITROGEN CONTENT NITROGEN FERTILIZER NUTRIENTS ORGANIC MATTER PH PRODUCE RAIN RAINFALL REFLECTANCE RICE SEED SEED SELECTION SEED TYPES SEEDS SMALL FARM SOIL CARBON SOIL CHARACTERISTICS SOIL FERTILITY SOIL QUALITY SOILS WEATHER CONDITIONS YIELDS This paper investigates the reasons for the low application of external fertilizers on farms in Kenya and Uganda. The analysis uses a large panel of household data with rich soil fertility data at the plot level. The authors control for maize seed selection and household effects by using a fixed-effects semi-parametric endogenous switching model. The results suggest that Kenyan maize farmers have applied inorganic fertilizer at the optimal level, corresponding to the high nitrogen-maize relative price, in one of the two survey years and also responded to the price change over time. In Uganda, even the low application of inorganic fertilizer is not profitable because of its high relative price. The authors conclude that policies that reduce the relative price of fertilizer could be effective in both countries, while the efficacy of policies based on improving farmers' knowledge about fertilizer use will be limited as long as the relative price of fertilizer remains high. 2014-09-02T21:57:28Z 2014-09-02T21:57:28Z 2009-12 http://documents.worldbank.org/curated/en/2009/12/11531939/soil-fertility-fertilizer-maize-green-revolution-east-africa https://hdl.handle.net/10986/19960 English en_US Policy Research Working Paper;No. 5158 CC BY 3.0 IGO http://creativecommons.org/licenses/by/3.0/igo/ application/pdf text/plain World Bank, Washington, DC |
| institution |
Banco Mundial |
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Estados Unidos |
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US |
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Bibliográfico |
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biblioteca |
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Biblioteca del Banco Mundial |
| language |
English en_US |
| topic |
AGRICULTURAL DEVELOPMENT AGRICULTURAL PRODUCTION AGRICULTURAL SCIENCE AGRICULTURAL TECHNOLOGY AGROFORESTRY ANIMALS CARBON CONTENT CEREAL CROPS CEREALS CHEMICAL FERTILIZER CLIMATE CO CROP CROP PRODUCTION CROP RESIDUE CROPPING CROPPING SYSTEMS CROPS DAP ECOSYSTEMS EXTERNAL INPUTS FARM FARM HOUSEHOLDS FARMER FARMERS FARMS FERTILIZER FERTILIZER APPLICATION FERTILIZER APPLICATIONS FERTILIZER MARKET FERTILIZER RESEARCH FERTILIZER TYPE FERTILIZER USE FERTILIZERS FOOD CROP FOOD POLICY FOOD POLICY RESEARCH FOOD RESEARCH GREEN REVOLUTION GROWTH IN AGRICULTURE HARVESTING HIGH YIELDING VARIETIES HOUSEHOLD LEVEL INTERNATIONAL FOOD POLICY RESEARCH INSTITUTE LAND DEGRADATION LAND MANAGEMENT LAND USE MAIZE MAIZE FARMERS MAIZE PRODUCTION MAIZE PRODUCTIVITY MAIZE REVOLUTION MAIZE SEED MAIZE TECHNOLOGY MAIZE YIELDS MANURES MARKET DEVELOPMENT MARKETING COSTS NEGATIVE IMPACT NITROGEN NITROGEN CONTENT NITROGEN FERTILIZER NUTRIENTS ORGANIC MATTER PH PRODUCE RAIN RAINFALL REFLECTANCE RICE SEED SEED SELECTION SEED TYPES SEEDS SMALL FARM SOIL CARBON SOIL CHARACTERISTICS SOIL FERTILITY SOIL QUALITY SOILS WEATHER CONDITIONS YIELDS AGRICULTURAL DEVELOPMENT AGRICULTURAL PRODUCTION AGRICULTURAL SCIENCE AGRICULTURAL TECHNOLOGY AGROFORESTRY ANIMALS CARBON CONTENT CEREAL CROPS CEREALS CHEMICAL FERTILIZER CLIMATE CO CROP CROP PRODUCTION CROP RESIDUE CROPPING CROPPING SYSTEMS CROPS DAP ECOSYSTEMS EXTERNAL INPUTS FARM FARM HOUSEHOLDS FARMER FARMERS FARMS FERTILIZER FERTILIZER APPLICATION FERTILIZER APPLICATIONS FERTILIZER MARKET FERTILIZER RESEARCH FERTILIZER TYPE FERTILIZER USE FERTILIZERS FOOD CROP FOOD POLICY FOOD POLICY RESEARCH FOOD RESEARCH GREEN REVOLUTION GROWTH IN AGRICULTURE HARVESTING HIGH YIELDING VARIETIES HOUSEHOLD LEVEL INTERNATIONAL FOOD POLICY RESEARCH INSTITUTE LAND DEGRADATION LAND MANAGEMENT LAND USE MAIZE MAIZE FARMERS MAIZE PRODUCTION MAIZE PRODUCTIVITY MAIZE REVOLUTION MAIZE SEED MAIZE TECHNOLOGY MAIZE YIELDS MANURES MARKET DEVELOPMENT MARKETING COSTS NEGATIVE IMPACT NITROGEN NITROGEN CONTENT NITROGEN FERTILIZER NUTRIENTS ORGANIC MATTER PH PRODUCE RAIN RAINFALL REFLECTANCE RICE SEED SEED SELECTION SEED TYPES SEEDS SMALL FARM SOIL CARBON SOIL CHARACTERISTICS SOIL FERTILITY SOIL QUALITY SOILS WEATHER CONDITIONS YIELDS |
| spellingShingle |
AGRICULTURAL DEVELOPMENT AGRICULTURAL PRODUCTION AGRICULTURAL SCIENCE AGRICULTURAL TECHNOLOGY AGROFORESTRY ANIMALS CARBON CONTENT CEREAL CROPS CEREALS CHEMICAL FERTILIZER CLIMATE CO CROP CROP PRODUCTION CROP RESIDUE CROPPING CROPPING SYSTEMS CROPS DAP ECOSYSTEMS EXTERNAL INPUTS FARM FARM HOUSEHOLDS FARMER FARMERS FARMS FERTILIZER FERTILIZER APPLICATION FERTILIZER APPLICATIONS FERTILIZER MARKET FERTILIZER RESEARCH FERTILIZER TYPE FERTILIZER USE FERTILIZERS FOOD CROP FOOD POLICY FOOD POLICY RESEARCH FOOD RESEARCH GREEN REVOLUTION GROWTH IN AGRICULTURE HARVESTING HIGH YIELDING VARIETIES HOUSEHOLD LEVEL INTERNATIONAL FOOD POLICY RESEARCH INSTITUTE LAND DEGRADATION LAND MANAGEMENT LAND USE MAIZE MAIZE FARMERS MAIZE PRODUCTION MAIZE PRODUCTIVITY MAIZE REVOLUTION MAIZE SEED MAIZE TECHNOLOGY MAIZE YIELDS MANURES MARKET DEVELOPMENT MARKETING COSTS NEGATIVE IMPACT NITROGEN NITROGEN CONTENT NITROGEN FERTILIZER NUTRIENTS ORGANIC MATTER PH PRODUCE RAIN RAINFALL REFLECTANCE RICE SEED SEED SELECTION SEED TYPES SEEDS SMALL FARM SOIL CARBON SOIL CHARACTERISTICS SOIL FERTILITY SOIL QUALITY SOILS WEATHER CONDITIONS YIELDS AGRICULTURAL DEVELOPMENT AGRICULTURAL PRODUCTION AGRICULTURAL SCIENCE AGRICULTURAL TECHNOLOGY AGROFORESTRY ANIMALS CARBON CONTENT CEREAL CROPS CEREALS CHEMICAL FERTILIZER CLIMATE CO CROP CROP PRODUCTION CROP RESIDUE CROPPING CROPPING SYSTEMS CROPS DAP ECOSYSTEMS EXTERNAL INPUTS FARM FARM HOUSEHOLDS FARMER FARMERS FARMS FERTILIZER FERTILIZER APPLICATION FERTILIZER APPLICATIONS FERTILIZER MARKET FERTILIZER RESEARCH FERTILIZER TYPE FERTILIZER USE FERTILIZERS FOOD CROP FOOD POLICY FOOD POLICY RESEARCH FOOD RESEARCH GREEN REVOLUTION GROWTH IN AGRICULTURE HARVESTING HIGH YIELDING VARIETIES HOUSEHOLD LEVEL INTERNATIONAL FOOD POLICY RESEARCH INSTITUTE LAND DEGRADATION LAND MANAGEMENT LAND USE MAIZE MAIZE FARMERS MAIZE PRODUCTION MAIZE PRODUCTIVITY MAIZE REVOLUTION MAIZE SEED MAIZE TECHNOLOGY MAIZE YIELDS MANURES MARKET DEVELOPMENT MARKETING COSTS NEGATIVE IMPACT NITROGEN NITROGEN CONTENT NITROGEN FERTILIZER NUTRIENTS ORGANIC MATTER PH PRODUCE RAIN RAINFALL REFLECTANCE RICE SEED SEED SELECTION SEED TYPES SEEDS SMALL FARM SOIL CARBON SOIL CHARACTERISTICS SOIL FERTILITY SOIL QUALITY SOILS WEATHER CONDITIONS YIELDS Matsumoto, Tomoya Yamano, Takashi Soil Fertility, Fertilizer, and the Maize Green Revolution in East Africa |
| description |
This paper investigates the reasons for
the low application of external fertilizers on farms in
Kenya and Uganda. The analysis uses a large panel of
household data with rich soil fertility data at the plot
level. The authors control for maize seed selection and
household effects by using a fixed-effects semi-parametric
endogenous switching model. The results suggest that Kenyan
maize farmers have applied inorganic fertilizer at the
optimal level, corresponding to the high nitrogen-maize
relative price, in one of the two survey years and also
responded to the price change over time. In Uganda, even the
low application of inorganic fertilizer is not profitable
because of its high relative price. The authors conclude
that policies that reduce the relative price of fertilizer
could be effective in both countries, while the efficacy of
policies based on improving farmers' knowledge about
fertilizer use will be limited as long as the relative price
of fertilizer remains high. |
| topic_facet |
AGRICULTURAL DEVELOPMENT AGRICULTURAL PRODUCTION AGRICULTURAL SCIENCE AGRICULTURAL TECHNOLOGY AGROFORESTRY ANIMALS CARBON CONTENT CEREAL CROPS CEREALS CHEMICAL FERTILIZER CLIMATE CO CROP CROP PRODUCTION CROP RESIDUE CROPPING CROPPING SYSTEMS CROPS DAP ECOSYSTEMS EXTERNAL INPUTS FARM FARM HOUSEHOLDS FARMER FARMERS FARMS FERTILIZER FERTILIZER APPLICATION FERTILIZER APPLICATIONS FERTILIZER MARKET FERTILIZER RESEARCH FERTILIZER TYPE FERTILIZER USE FERTILIZERS FOOD CROP FOOD POLICY FOOD POLICY RESEARCH FOOD RESEARCH GREEN REVOLUTION GROWTH IN AGRICULTURE HARVESTING HIGH YIELDING VARIETIES HOUSEHOLD LEVEL INTERNATIONAL FOOD POLICY RESEARCH INSTITUTE LAND DEGRADATION LAND MANAGEMENT LAND USE MAIZE MAIZE FARMERS MAIZE PRODUCTION MAIZE PRODUCTIVITY MAIZE REVOLUTION MAIZE SEED MAIZE TECHNOLOGY MAIZE YIELDS MANURES MARKET DEVELOPMENT MARKETING COSTS NEGATIVE IMPACT NITROGEN NITROGEN CONTENT NITROGEN FERTILIZER NUTRIENTS ORGANIC MATTER PH PRODUCE RAIN RAINFALL REFLECTANCE RICE SEED SEED SELECTION SEED TYPES SEEDS SMALL FARM SOIL CARBON SOIL CHARACTERISTICS SOIL FERTILITY SOIL QUALITY SOILS WEATHER CONDITIONS YIELDS |
| author |
Matsumoto, Tomoya Yamano, Takashi |
| author_facet |
Matsumoto, Tomoya Yamano, Takashi |
| author_sort |
Matsumoto, Tomoya |
| title |
Soil Fertility, Fertilizer, and the Maize Green Revolution in East Africa |
| title_short |
Soil Fertility, Fertilizer, and the Maize Green Revolution in East Africa |
| title_full |
Soil Fertility, Fertilizer, and the Maize Green Revolution in East Africa |
| title_fullStr |
Soil Fertility, Fertilizer, and the Maize Green Revolution in East Africa |
| title_full_unstemmed |
Soil Fertility, Fertilizer, and the Maize Green Revolution in East Africa |
| title_sort |
soil fertility, fertilizer, and the maize green revolution in east africa |
| publisher |
World Bank, Washington, DC |
| publishDate |
2009-12 |
| url |
http://documents.worldbank.org/curated/en/2009/12/11531939/soil-fertility-fertilizer-maize-green-revolution-east-africa https://hdl.handle.net/10986/19960 |
| work_keys_str_mv |
AT matsumototomoya soilfertilityfertilizerandthemaizegreenrevolutionineastafrica AT yamanotakashi soilfertilityfertilizerandthemaizegreenrevolutionineastafrica |
| _version_ |
1807159998696914944 |