The potential benefits and trade-offs of using sub-surface water retention technology on coarse-textured soils: Impacts of water and nutrient saving on maize production and soil carbon sequestration
In Sub-Saharan Africa, several smallholder communities continuously grapple with soil-based poverty as the coarse-textured soils on which they eke out a living have low water and nutrient retention capacities. The new sub-surface water retention technology (SWRT), is based on the subsurface installa...
| Autores principales: | , , , , , , , , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Frontiers Media
2019
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/103405 |
| _version_ | 1855516274066456576 |
|---|---|
| author | Nkurunziza, Libère Chirinda, Ngonidzashe Lana, Marcos A. Sommer, Rolf Karanja Ng'ang'a, Stanley Rao, Idupulapati M. Romero Sánchez, Miguel Antonio Kuyak, Shem Quintero, Marcela Lewu, Francis Joel, Abraham Nyamadzawo, George Smucker, Alvin |
| author_browse | Chirinda, Ngonidzashe Joel, Abraham Karanja Ng'ang'a, Stanley Kuyak, Shem Lana, Marcos A. Lewu, Francis Nkurunziza, Libère Nyamadzawo, George Quintero, Marcela Rao, Idupulapati M. Romero Sánchez, Miguel Antonio Smucker, Alvin Sommer, Rolf |
| author_facet | Nkurunziza, Libère Chirinda, Ngonidzashe Lana, Marcos A. Sommer, Rolf Karanja Ng'ang'a, Stanley Rao, Idupulapati M. Romero Sánchez, Miguel Antonio Kuyak, Shem Quintero, Marcela Lewu, Francis Joel, Abraham Nyamadzawo, George Smucker, Alvin |
| author_sort | Nkurunziza, Libère |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | In Sub-Saharan Africa, several smallholder communities continuously grapple with soil-based poverty as the coarse-textured soils on which they eke out a living have low water and nutrient retention capacities. The new sub-surface water retention technology (SWRT), is based on the subsurface installation of impermeable water‐retaining membranes of linear and low-density polyethylene, reduces the amount of water and nutrients lost through deep percolation especially on coarse-textured soils. In this study, we used stochastic simulations on the diffusion of sub-surface water retention technology (SWRT) on coarse-textured (sandy) soils in eight different Eastern and Southern African countries. Using results from previous research on SWRT we estimated increases in maize grain yields and biomass accumulation. Results from the least and most promising diffusion scenarios suggested that with ten years of widespread adoption of SWRT regional maize production could increase by 10 and 40 million tonnes per season. Carbon sequestration could reach 2 to 4 tonnes from the 7th year after implementation (YAI) and 2 to 12 tonnes for the 15 YAI for the best diffusion scenario as consequence of increased biomass production following SWRT adoption. While our results suggest synergistic reductions in the rate of water and nutrient loss from crop root zones, SWRT is characterized by high initial financial and labour investment costs without effective financial support would be prohibitive to uptake by the generally resource-limited smallholder farmers working on sandy soils. Moreover, as SWRT is new, there is a need for more dissemination efforts to increase awareness on the technologies amongst extension workers, decision-makers and agricultural investors that can promote and incentivize the adoption of this technology in areas were agricultural productivity is constrained by coarse-textured soils. |
| format | Journal Article |
| id | CGSpace103405 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1034052025-03-13T09:43:59Z The potential benefits and trade-offs of using sub-surface water retention technology on coarse-textured soils: Impacts of water and nutrient saving on maize production and soil carbon sequestration Nkurunziza, Libère Chirinda, Ngonidzashe Lana, Marcos A. Sommer, Rolf Karanja Ng'ang'a, Stanley Rao, Idupulapati M. Romero Sánchez, Miguel Antonio Kuyak, Shem Quintero, Marcela Lewu, Francis Joel, Abraham Nyamadzawo, George Smucker, Alvin maize hygroscopicity higroscopicidad crop production producción vegetal soil organic carbon smallholder farmers africa south of sahara nutrients horticulture ecology food science In Sub-Saharan Africa, several smallholder communities continuously grapple with soil-based poverty as the coarse-textured soils on which they eke out a living have low water and nutrient retention capacities. The new sub-surface water retention technology (SWRT), is based on the subsurface installation of impermeable water‐retaining membranes of linear and low-density polyethylene, reduces the amount of water and nutrients lost through deep percolation especially on coarse-textured soils. In this study, we used stochastic simulations on the diffusion of sub-surface water retention technology (SWRT) on coarse-textured (sandy) soils in eight different Eastern and Southern African countries. Using results from previous research on SWRT we estimated increases in maize grain yields and biomass accumulation. Results from the least and most promising diffusion scenarios suggested that with ten years of widespread adoption of SWRT regional maize production could increase by 10 and 40 million tonnes per season. Carbon sequestration could reach 2 to 4 tonnes from the 7th year after implementation (YAI) and 2 to 12 tonnes for the 15 YAI for the best diffusion scenario as consequence of increased biomass production following SWRT adoption. While our results suggest synergistic reductions in the rate of water and nutrient loss from crop root zones, SWRT is characterized by high initial financial and labour investment costs without effective financial support would be prohibitive to uptake by the generally resource-limited smallholder farmers working on sandy soils. Moreover, as SWRT is new, there is a need for more dissemination efforts to increase awareness on the technologies amongst extension workers, decision-makers and agricultural investors that can promote and incentivize the adoption of this technology in areas were agricultural productivity is constrained by coarse-textured soils. 2019-08-19 2019-08-26T14:29:19Z 2019-08-26T14:29:19Z Journal Article https://hdl.handle.net/10568/103405 en Open Access Frontiers Media Nkurunziza, Libère; Chirinda, Ngonidzashe; Lana, Marcos; Sommer, Rolf; Karanja Ng'ang'a, Stanley; Rao, Idupulapati M.; Romero Sanchez, Miguel A.; Kuyak, Shem; Quintero, Marcela; Lewu, Francis; Joel, Abraham; Nyamadzawo, George & Smucker, Alvin (2019). The potential benefits and trade-offs of using sub-surface water retention technology on coarse-textured soils: Impacts of water and nutrient saving on maize production and soil carbon sequestration. Frontiers in Sustainable Food Systems. 3:71 |
| spellingShingle | maize hygroscopicity higroscopicidad crop production producción vegetal soil organic carbon smallholder farmers africa south of sahara nutrients horticulture ecology food science Nkurunziza, Libère Chirinda, Ngonidzashe Lana, Marcos A. Sommer, Rolf Karanja Ng'ang'a, Stanley Rao, Idupulapati M. Romero Sánchez, Miguel Antonio Kuyak, Shem Quintero, Marcela Lewu, Francis Joel, Abraham Nyamadzawo, George Smucker, Alvin The potential benefits and trade-offs of using sub-surface water retention technology on coarse-textured soils: Impacts of water and nutrient saving on maize production and soil carbon sequestration |
| title | The potential benefits and trade-offs of using sub-surface water retention technology on coarse-textured soils: Impacts of water and nutrient saving on maize production and soil carbon sequestration |
| title_full | The potential benefits and trade-offs of using sub-surface water retention technology on coarse-textured soils: Impacts of water and nutrient saving on maize production and soil carbon sequestration |
| title_fullStr | The potential benefits and trade-offs of using sub-surface water retention technology on coarse-textured soils: Impacts of water and nutrient saving on maize production and soil carbon sequestration |
| title_full_unstemmed | The potential benefits and trade-offs of using sub-surface water retention technology on coarse-textured soils: Impacts of water and nutrient saving on maize production and soil carbon sequestration |
| title_short | The potential benefits and trade-offs of using sub-surface water retention technology on coarse-textured soils: Impacts of water and nutrient saving on maize production and soil carbon sequestration |
| title_sort | potential benefits and trade offs of using sub surface water retention technology on coarse textured soils impacts of water and nutrient saving on maize production and soil carbon sequestration |
| topic | maize hygroscopicity higroscopicidad crop production producción vegetal soil organic carbon smallholder farmers africa south of sahara nutrients horticulture ecology food science |
| url | https://hdl.handle.net/10568/103405 |
| work_keys_str_mv | AT nkurunzizalibere thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT chirindangonidzashe thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT lanamarcosa thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT sommerrolf thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT karanjangangastanley thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT raoidupulapatim thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT romerosanchezmiguelantonio thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT kuyakshem thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT quinteromarcela thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT lewufrancis thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT joelabraham thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT nyamadzawogeorge thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT smuckeralvin thepotentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT nkurunzizalibere potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT chirindangonidzashe potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT lanamarcosa potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT sommerrolf potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT karanjangangastanley potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT raoidupulapatim potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT romerosanchezmiguelantonio potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT kuyakshem potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT quinteromarcela potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT lewufrancis potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT joelabraham potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT nyamadzawogeorge potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration AT smuckeralvin potentialbenefitsandtradeoffsofusingsubsurfacewaterretentiontechnologyoncoarsetexturedsoilsimpactsofwaterandnutrientsavingonmaizeproductionandsoilcarbonsequestration |