Online citations, reference lists, and bibliographies.
← Back to Search

On-farm Trial Assessing Combined Organic And Mineral Fertilizer Amendments On Vegetable Yields In Central Uganda

L. Pincus, A. Margenot, J. Six, K. Scow
Published 2016 · Biology

Cite This
Download PDF
Analyze on Scholarcy
Share
Abstract Integrated Soil Fertility Management (ISFM) is a soil management approach that emphasizes combined application of organic and mineral fertilizer inputs with the goal of improving yields and fertilizer use efficiency. Combined applications have resulted in a positive interaction between organic inputs and mineral fertilizers on vegetable yields, where yields from combined treatments are greater than yields from sole fertilizer treatments. ISFM studies have been conducted with a diverse range of crops, including grains, legumes, tubers, and bananas, but not vegetable crops. Particularly lacking are ISFM studies conducted under participatory, smallholder farmer management. A researcher-designed, farmer-managed, on-farm study was conducted on highly weathered soils (Ferralsols) in the Lake Victoria Crescent of Uganda to determine the influence of combined organic and mineral fertilizer treatments on yields of a commonly grown indigenous leafy vegetable known as nakati ( Solanum aethiopicum ). Farmer-managed plots allowed for the effect of farmer participation and management to be analyzed in conjunction with fertilizer treatment effects. A gradient of 100% organic (sole manure) to 0% organic (sole mineral) fertilizer treatments were applied at both an upper (200 kg ha −1 ) and lower (100 kg ha −1 ) nitrogen (N) rate. N rates were derived from survey results on typical organic application rates used by smallholder farmers in their vegetable plots. Fertilizer treatments resulted in significantly different vegetable yields; however, combined treatments did not necessarily result in higher yields than sole treatments. Differences between organic-mineral ratios were only seen when fertilizers were applied at the higher N rate. The highest yields were obtained when fertilizer was applied at a ratio of 67% organic to 33% mineral fertilizer. Effects of soil properties on yield were also observed; after accounting for the effect of fertilizer treatment, yields significantly increased with increasing soil pH. Farmer participation level had a significant effect on yield. All treatment means were significantly increased by greater participation in the study, and the interactive effects of all treatments became less negative when participation was higher. On-farm studies are needed to demonstrate the applicability of a technology under real world conditions, but trials need to maintain farmers’ interest throughout the study period.
This paper references
10.1007/978-3-319-09360-4_2
Geopedological and Landscape Dynamic Controls on Productivity Potentials and Constraints in Selected Spatial Entities in Sub-Saharan Africa
Yazidhi Bamutaze (2015)
10.1016/J.AGEE.2014.06.017
Long-term addition of compost and NP fertilizer increases crop yield and improves soil quality in experiments on smallholder farms
Workneh Bedada (2014)
10.1007/BF00007871
Nitrate sorption in the profile of an acid soil
M. Cahn (2004)
Enhanced biological cycling of phosphorus
G. Ayaga (2006)
10.1016/J.SOILBIO.2008.05.018
Interactive effects from combining fertilizer and organic residue inputs on nitrogen transformations
R. Gentile (2008)
10.1016/s0167-8809(98)00129-7
Research on nutrient flows and balances in west Africa: state-of-the-art1Paper contributes to EC INCO-DC project IC18-CT96-0092 (Spatial and temporal variation of soil nutrient stocks and management in sub-Saharan African farming systems).1
A. Bationo (1998)
Building common knowledge: participatory learning and action research
T. Defoer (2000)
Participatory action research and social change
D. Selener (1997)
10.18637/JSS.V069.I01
Least-Squares Means: The R Package lsmeans
R. Lenth (2016)
Traditional knowledge and practices in local vegetable production in central Uganda
C. K. Ssekabembe (2003)
10.1023/A:1009823600950
Amelioration of Al toxicity and P deficiency in acid soils by additions of organic residues: a critical review of the phenomenon and the mechanisms involved
R. Haynes (2004)
10.2136/SSSAJ2014.11.0458
Mid‐Infrared and Total X‐Ray Fluorescence Spectroscopy Complementarity for Assessment of Soil Properties
E. Towett (2015)
10.5860/choice.47-1990
African indigenous vegetables in urban agriculture
Charlie M. Shakleton (2009)
Cattle for manure
R. S. Schrader (1951)
10.1017/S0014479708007084
MAIZE YIELDS RESPONSE TO APPLICATION OF ORGANIC AND INORGANIC INPUT UNDER ON-STATION AND ON-FARM EXPERIMENTS IN CENTRAL KENYA
J. Mugwe (2009)
10.1007/s10705-006-9049-3
Appropriate technologies to replenish soil fertility in southern Africa
P. Mafongoya (2006)
10.1023/A:1009794416012
Interactions of aerobically decomposed cattle manure and nitrogen fertilizer applied to soil
J. Nyamangara (2004)
Uganda. Crop Sci
P. Tittonell (2008)
10.1016/S0167-8809(98)00129-7
Research on nutrient flows and balances in west Africa: state-of-the-art 1 Paper contributes to EC I
A. Bationo (1998)
10.3362/9781780444956
Farmers' research in practice: lessons from the field.
L. V. Veldhuizen (1997)
10.1007/s10705-005-4988-7
Comparative short-term effects of different quality organic resources on maize productivity under two different environments in Zimbabwe
F. Mtambanengwe (2005)
10.1007/978-94-007-2938-4_10
Long-term integrated soil fertility management in South-western Nigeria: Crop performance and impact on the soil fertility status
B. Vanlauwe (2005)
10.1016/J.AGEE.2005.03.013
Resource flows and nutrient balances for crop and animal production in smallholder farming systems in eastern Uganda
A. Esilaba (2005)
10.1016/J.FCR.2009.11.014
Variation in maize yield gaps with plant nutrient inputs, soil type and climate across sub-Saharan Africa
G. Sileshi (2010)
10.1126/SCIENCE.1065256
Soil Fertility and Hunger in Africa
P. Sanchez (2002)
10.1007/BF01048768
Some aspects of the role of organic matter in sustainable intensified arable farming systems in the West-African semi-arid-tropics (SAT)
N. D. Ridder (2005)
Determinants of nutrient balances
K. C. Kaizzi (2005)
10.1016/J.STILL.2011.08.010
Fertility management for maize cultivation in some soils of Western Kenya
A. F. Ngome (2011)
10.1007/978-3-319-07662-1
Challenges and Opportunities for Agricultural Intensification of the Humid Highland Systems of Sub-Saharan Africa
Bernard Vanlauwe (2014)
10.1007/s11104-008-9676-3
Yield gaps, nutrient use efficiencies and response to fertilisers by maize across heterogeneous smallholder farms of western Kenya
P. Tittonell (2008)
10.1007/BF01530454
Facts, fantasies, and failures of farmer participatory research
J. Bentley (1994)
10.2136/SSSAJ2000.643962X
Cattle manure amendments can increase the pH of acid soils
J. Whalen (2000)
10.4324/9781849770019
African indigenous vegetables in urban agriculture
C. M. Shackleton (2009)
Effect of manure quality
J. 772–782. Masaka (2013)
Multiple benefits of manure
S. 1990.tb00805.x. Zingore (2007)
10.2136/SSSAJ2015.02.0070
Soil organic matter functional group composition in relation to organic carbon, nitrogen, and phosphorus fractions in organically managed tomato fields
A. Margenot (2015)
Long term effects of mineral fertilisers
B. V. Bado (2004)
10.1016/S0065-2113(10)08004-1
Chapter Four - Restoring Soil Fertility in Sub-Sahara Africa
M. Bekunda (2010)
10.1007/s11104-005-0194-2
Long-term integrated soil fertility management in South-western Nigeria: Crop performance and impact on the soil fertility status
B. Vanlauwe (2005)
10.1007/s11104-010-0626-5
Does the combined application of organic and mineral nutrient sources influence maize productivity? A meta-analysis
P. Chivenge (2010)
10.1017/S0014479713000525
Enhancing Maize Productivity and Profitability Using Organic Inputs and Mineral Fertilizer in Central Kenya Small-Hold Farms
M. Mucheru-Muna (2014)
Resource flows and
P. Nyende (2005)
Fertility Management
L. Murdock (2001)
Restoring Soil Fertility in Sub-Saharan Africa: Technical and Economic Issues
D. Weight (1998)
10.1016/J.SOILBIO.2005.04.019
Enhanced biological cycling of phosphorus increases its availability to crops in low-input sub-Saharan farming systems
G. Ayaga (2006)
10.2134/AGRONJ2001.1191
Maize Yield as Affected by Organic Inputs and Urea in the West African Moist Savanna
B. Vanlauwe (2001)
10.1023/A:1015081030682
Conceptualizing integrative, farmer participatory research for sustainable agriculture: From opportunities to impact
Elske van de Fliert (2000)
10.1007/s10705-013-9583-8
Effect of manure quality on nitrate leaching and groundwater pollution in wetland soil under field tomato (Lycopersicon esculentum, Mill var. Heinz) rape (Brassica napus, L var. Giant)
J. Masaka (2013)
Trade-offs between the short
R. soilbio.2008.05.018. Gentile (2010)
Interactions of aerobically
M. I. Piha (1999)
Soil organic matter and its relationship to soil fertility changes
H. tsw.2001.361. Ssali (2002)
Long-term addition
W. Bedada (2014)
Challenges and lessons
P.J.A. BF01048768. van Asten (2009)
10.1016/S0960-8524(00)00109-7
Effects of pig manure and wheat straw on growth of mung bean seedlings grown in aluminium toxicity soil.
Q. Shen (2001)
10.1111/J.1475-2743.2012.00394.X
Effects of cattle manure on selected soil physical properties of smallholder farms on two soils of Murewa, Zimbabwe
Nothando Dunjana (2012)
10.5860/choice.42-5837
Agriculture and the Nitrogen Cycle: Assessing the Impacts of Fertilizer Use on Food Production and the Environment
A. Mosier (2004)
10.1079/9780851995762.0173
Direct interactions between N fertilizer and organic matter: evidence from trials with 15N-labelled fertilizer.
B. Vanlauwe (2001)
10.2307/2261129
Tropical Soil Biology and Fertility: A Handbook of Methods.
I. C. Baillie (1990)
Restoring soil fertility in sub - sahara africa
M. A. Bekunda
Soil organic
F. J. Calderón (2015)
Effect of organic acids on aluminum
G. R. Craddock (1986)
lsmeans: Least-Squares Means. R package version 2.13
R. V. Inc.. Lenth (2014)
10.2134/AGRONJ2007.0355
Combining organic and mineral fertilizers for integrated soil fertility management in smallholder farming systems of Kenya : Explorations using the crop-soil model FIELD
P. Tittonell (2008)
Yield gaps, nutrient
P. agronj2007.0355. Tittonell (2008)
10.1007/s003740050667
Land use affects the distribution of soil inorganic nitrogen in smallholder production systems in Kenya
G. Shepherd (2000)
Participatory on - farm technology testing : the suitability of different types of trials for different objectives
M. R. Bellon (2002)
Interactive effects
R. Gentile (2008)
Trade-offs between investments
Institute (2002)
10.1017/S0014479708006984
CHALLENGES AND LESSONS WHEN USING FARMER KNOWLEDGE IN AGRICULTURAL RESEARCH AND DEVELOPMENT PROJECTS IN AFRICA
P. Asten (2009)
10.1111/J.1475-2743.1990.TB00805.X
The retention of nitrate in acid soils from the tropics.
M. Wong (1990)
10.1007/s10705-007-9142-2
Multiple benefits of manure: The key to maintenance of soil fertility and restoration of depleted sandy soils on African smallholder farms
S. Zingore (2007)
Trade - offs between investments in nitrogen and weeding : on - farm experimentation and simulation analysis in Malawi and Zimbabwe
J. Dimes (2002)
Participatory on-farm technology testing: the suitability
Scientific (2002)
10.1007/s11104-010-0360-z
Trade-offs between the short- and long-term effects of residue quality on soil C and N dynamics
R. Gentile (2010)
10.1100/tsw.2001.361
Synchronizing N Release from Organic Residues: Opportunities for Integrated Management of N
U. Singh (2001)
10.1016/J.FCR.2013.03.014
Pushing the envelope? Maize production intensification and the role of cattle manure in recovery of degraded soils in smallholder farming areas of Zimbabwe
L. Rusinamhodzi (2013)
Maize yields response
D. Mugendi (2008)
Nitrate sorption in the pro fi le of an acid soil
M. D. Cahn
10.1016/J.AGSY.2004.04.004
Determinants of nutrient balances in a maize farming system in eastern Uganda
E. Nkonya (2005)
10.2134/AGRONJ2008.0188X
Organic and Mineral Input Management to Enhance Crop Productivity in Central Kenya
P. Chivenge (2009)
10.2136/SSSAJ1986.03615995005000010006X
Effect of Organic Acids on Aluminum Toxicity in Subsoils
N. Huệ (1986)
African Indigenous Vegetables: An overview of the cultivated species.
R. Schippers (2000)
10.1016/S0167-8809(98)00128-5
Research on nutrient flows and balances in East and Southern Africa: state-of-the-art 1 Paper contri
S. Nandwa (1998)
Communication for Rural Innovation: Rethinking Agricultural Extension
C. Leeuwis (2004)
10.1016/J.EJSOBI.2013.10.002
Microbial biomass P dynamics and sequential P fractionation in high and low P fixing Kenyan soils
Lydie-Stella Koutika (2013)
A Guide for On-farm
G. K. Weber (1997)
Microbial biomass P
T. E. Crews (2013)
10.1007/978-3-319-07662-1_29
ISFM Adaptation Trials: Farmer-to Farmer Facilitation, Farmer-Led Data Collection, Technology Learning and Uptake
B. Paul (2014)



This paper is referenced by
Online farm trials: A national web-based information source for Australian grains research, development and extension
Judi Walters (2018)
The Effects of Combined Application of Cattle manure And Mineral Nitrogen And Phosphorus Fertilizer on Growth, Biomass Yield, And Quality of Potato (Solanum Tuberosum L) Tuber in Abelo area at Masha District sheka Zone, South-Western Ethiopia
Isreal Zewide (2019)
10.1016/j.agsy.2020.102819
On-farm trials identify adaptive management options for rainfed agriculture in West Africa
Jon Eldon (2020)
10.1016/J.SCITOTENV.2019.03.191
Substituting organic manure for compound fertilizer increases yield and decreases NH3 and N2O emissions in an intensive vegetable production systems.
J. Zhang (2019)
10.15226/2572-3154/3/1/00114
The Effects of Combined Application of Cattle manure And Mineral Nitrogen And Phosphorus Fertilizer on Growth, Biomass Yield, And Quality of Potato (Solanum Tuberosum L) Tuber Inabelo Area at Masha District sheka Zone, South-Western Ethiopia
Isreal Zewide (2018)
10.1016/j.jenvman.2019.05.026
Effect of full substituting compound fertilizer with different organic manure on reactive nitrogen losses and crop productivity in intensive vegetable production system of China.
Minghao Zhuang (2019)
10.1016/J.EJA.2017.07.010
Agronomic effects of bovine manure: A review of long-term European field experiments
L. Zavattaro (2017)
10.1080/14735903.2018.1499842
Drivers of sustainable intensification in Kenyan rural and peri-urban vegetable production
Barnabas K. Kurgat (2018)
10.1021/acs.est.6b06470
How Does Recycling of Livestock Manure in Agroecosystems Affect Crop Productivity, Reactive Nitrogen Losses, and Soil Carbon Balance?
Longlong Xia (2017)
10.1007/s13762-017-1598-2
Eco-friendly smart hydrogels for soil conditioning and sustain release fertilizer
Janarthanan Pushpamalar (2017)
10.1016/j.agee.2019.106716
The mechanisms underlying the reduction in aluminum toxicity and improvements in the yield of sweet potato (Ipomoea batatas L.) After organic and inorganic amendment of an acidic ultisol
Wen-rui Zhao (2020)
10.1016/J.AGWAT.2019.03.014
Soil fertility inputs and tillage influence on maize crop performance and soil water content in the Central Highlands of Kenya
M. N. Kiboi (2019)
10.9734/AJAEES/2019/V34I130188
The Impact of Agricultural Practices on Soil Organisms: Lessons Learnt from Market-gardens
Coraline Moulin (2019)
10.1080/01904167.2020.1822402
Altitude and fertilization type: concentration of nutrients and production of biomass in Stevia rebaudiana Bertoni
Carol Díaz-Gutiérrez (2020)
Semantic Scholar Logo Some data provided by SemanticScholar