Publications


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Dr. Richard Onwonga Publications
12013Evaluation Of Types And Factors Influencing Adoption Of Rainwater Harvesting Techniques In Yatta District, Kenya
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22013Comparative Effects Of Soil Amendments On Phosphorus Use And Agronomic Efficiencies Of Two Maize Hybrids In Acidic Soils Of Molo County, Kenya
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32013Crop Performance And Soil Nutrient Dynamics Under Different Cropping Systems And Organic Inputs In Central Kenya.
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42012Relationships Between Agronomic Practices, Soil Chemical Characteristics And Striga Reproduction In Dryland Areas Of Tanzania.
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52012Climate Change And Variability: Farmers’ Perception, Experience And Adaptation Strategies In Makueni County, Kenya
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62012Effect Of Inorganic And Organic Fertilizers On The Performance And Profitability Of Grain Amaranth (Amaranthus Caudatus L.) In Western Kenya
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72012Effect Of Nitrogen Source, Crop Maturity Stage And Storage Conditions On Phenolics And Oxalate Contents In Vegetable Amaranth (A
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82011The Effect Of Organic-Based Nutrient Management Strategies On Soil Nutrient Availability And Maize Performance In Njoro, Kenya
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92011Effect Of Vegetative Macro Contour Lines On Soil Moisture Conservation And Crop Performance In Eastern Province, Kenya
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102010The Effect Of Pellet Fertilizer Application On Wheat Yield And Its Components
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112010SHORT RAIN SEASON FALLOW: WINDOW OF OPPORTUNITY FOR INTEGRATING IMPROVED FALLOW LEGUMES INTO THE FARMING SYSTEM OF MOLO DISTRICT, KENYA
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122010Mineral Nitrogen And Microbial Biomass Dynamics Under Different Acid Soil Management Practices For Maize Production
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132010Assessment Of Changes In Natural Resources: A Participatory Approach
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142010Decomposition And Nitrogen Release Rates Of Buried Chickpea (Cicer Arietinum L.) Residue In A Mollic Phaeozem Of Njoro, Kenya
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152010Modelling The Potential Impact Of Climate Change On Sorghum And Cowpea Production In Semi-arid Areas Of Kenya Using The Agricultural Production Systems Simulator (APSIM
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162009Organic Based Nutrient Management Strategies: Effect On Soil Nutrient Availability And Maize (Zea Mays L.) Performance In Njoro, Kenya
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172008Low Cost Technologies For Enhancing N And P Availability And Maize (Zea Mays L.) Performance On Acid Soils
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182008Traditional Soil Fertility Management Strategies: Do They Conform To Recommendations In Organic Farming? A Case Study Of The Smallholder Farmers Of The Central Rift Valley Province Of Kenya
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192006Interactive Effects Of Lime, Manure, Urea And TSP On Maize (Zea Mays L.) Yield And Nutrient Uptake In An Acid Mollic Andosol Of Molo, Kenya
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202000Effect Of Lime, Urea And Triple Super Phosphate On Nitrogen And Phosphorus Mineralisation In An Acid Soil During Incubation
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212000Short Communication: Effect Of Lime, Urea And Triple Super Phosphate On Nitrogen And Phosphorus Mineralisation In An Acid Soil During Incubation
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221999Effect Of A Cowpea Intercrop On Maize Yield And Nutrient Use Efficiency In The Coastal Lowlands And Semi-arid Parts Of Kenya
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