Ebook: Improving Soil Fertility Recommendations in Africa using the Decision Support System for Agrotechnology Transfer (DSSAT)

The book gives a detailed description of the application of DSSAT in simulating crop and soil processes within various Agro-ecological zones in Africa. The book, an output of a series of 3 workshops, provides examples of the application of DSSAT models to simulate nitrogen applications, soil and water conservation practices including effects of zai technology, phosphorus and maize productivity, generation of genetic coefficients, long-term soil fertility management technologies in the drylands, microdosing, optimization of nitrogen x germplasms x water, spatial analysis of water and nutrient use efficiencies and, tradeoff analysis. The minimum dataset requirements for DSSAT is discussed. This book arises from attempts to address the limited use of models in decision support by African agricultural (both soil scientist and agronomists) scientists.

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The book gives a detailed description of the application of DSSAT in simulating crop and soil processes within various Agro-ecological zones in Africa. The book, an output of a series of 3 workshops, provides examples of the application of DSSAT models to simulate nitrogen applications, soil and water conservation practices including effects of zai technology, phosphorus and maize productivity, generation of genetic coefficients, long-term soil fertility management technologies in the drylands, microdosing, optimization of nitrogen x germplasms x water, spatial analysis of water and nutrient use efficiencies and, tradeoff analysis. The minimum dataset requirements for DSSAT is discussed. This book arises from attempts to address the limited use of models in decision support by African agricultural (both soil scientist and agronomists) scientists.

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The book gives a detailed description of the application of DSSAT in simulating crop and soil processes within various Agro-ecological zones in Africa. The book, an output of a series of 3 workshops, provides examples of the application of DSSAT models to simulate nitrogen applications, soil and water conservation practices including effects of zai technology, phosphorus and maize productivity, generation of genetic coefficients, long-term soil fertility management technologies in the drylands, microdosing, optimization of nitrogen x germplasms x water, spatial analysis of water and nutrient use efficiencies and, tradeoff analysis. The minimum dataset requirements for DSSAT is discussed. This book arises from attempts to address the limited use of models in decision support by African agricultural (both soil scientist and agronomists) scientists.
Content:
Front Matter....Pages i-viii
Building Capacity for Modeling in Africa....Pages 1-7
Experiments and Data for Model Evaluation and Application....Pages 9-18
Knowing the African Soils to Improve Fertilizer Recommendations....Pages 19-42
Uncertainties in Simulating Crop Performance in Degraded Soils and Low Input Production Systems....Pages 43-59
The Response of Maize to N Fertilization in a Sub-humid Region of Ghana: Understanding the Processes Using a Crop Simulation Model....Pages 61-75
Water Use and Yield of Millet Under the Zai System: Understanding the Processes Using Simulation....Pages 77-100
Effect of Integrated Soil Fertility Management Technologies on the Performance of Millet in Niger: Understanding the Processes Using Simulation....Pages 101-117
Evaluation of the CSM-CROPGRO-Soybean Model for Dual-Purpose Soyabean in Kenya....Pages 119-140
Simulation of Potential Yields of New Rice Varieties in the Senegal River Valley....Pages 141-155
Modeling Maize Response to Mineral Fertilizer on Silty Clay Loam in the Northern Savanna Zone of Ghana Using DSSAT Model....Pages 157-168
Beyond Biophysical Recommendations: Towards a New Paradigm....Pages 169-184
Back Matter....Pages 185-187

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The book gives a detailed description of the application of DSSAT in simulating crop and soil processes within various Agro-ecological zones in Africa. The book, an output of a series of 3 workshops, provides examples of the application of DSSAT models to simulate nitrogen applications, soil and water conservation practices including effects of zai technology, phosphorus and maize productivity, generation of genetic coefficients, long-term soil fertility management technologies in the drylands, microdosing, optimization of nitrogen x germplasms x water, spatial analysis of water and nutrient use efficiencies and, tradeoff analysis. The minimum dataset requirements for DSSAT is discussed. This book arises from attempts to address the limited use of models in decision support by African agricultural (both soil scientist and agronomists) scientists.
Content:
Front Matter....Pages i-viii
Building Capacity for Modeling in Africa....Pages 1-7
Experiments and Data for Model Evaluation and Application....Pages 9-18
Knowing the African Soils to Improve Fertilizer Recommendations....Pages 19-42
Uncertainties in Simulating Crop Performance in Degraded Soils and Low Input Production Systems....Pages 43-59
The Response of Maize to N Fertilization in a Sub-humid Region of Ghana: Understanding the Processes Using a Crop Simulation Model....Pages 61-75
Water Use and Yield of Millet Under the Zai System: Understanding the Processes Using Simulation....Pages 77-100
Effect of Integrated Soil Fertility Management Technologies on the Performance of Millet in Niger: Understanding the Processes Using Simulation....Pages 101-117
Evaluation of the CSM-CROPGRO-Soybean Model for Dual-Purpose Soyabean in Kenya....Pages 119-140
Simulation of Potential Yields of New Rice Varieties in the Senegal River Valley....Pages 141-155
Modeling Maize Response to Mineral Fertilizer on Silty Clay Loam in the Northern Savanna Zone of Ghana Using DSSAT Model....Pages 157-168
Beyond Biophysical Recommendations: Towards a New Paradigm....Pages 169-184
Back Matter....Pages 185-187
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