Your search found 8 records
1 Stanley, C. D.; Clark, G. A. 1995. Non-traditional use of microirrigation tubing for water quality protection. In Lamm, F. R. (Ed.), Microirrigation for a changing world: Conserving resources/preserving the environment: Proceedings of the Fifth International Microirrigation Congress, Hyatt Regency Orlando, Orlando, Florida, April 2-6, 1995. St. Joseph, MI, USA: ASAE. pp.49-53.
Subsurface irrigation ; Water table ; Fertilizers ; Leaching ; Water quality ; Tomatoes ; Pepper ; Crop yield / USA / Florida
(Location: IWMI-HQ Call no: 631.7 G000 LAM Record No: H018824)
2 Bracy, R. P.; Edling, R. J.; Moser, E. B. 1995. Drip-irrigation management and fertilization of bell pepper in a humid area. In Lamm, F. R. (Ed.), Microirrigation for a changing world: Conserving resources/preserving the environment: Proceedings of the Fifth International Microirrigation Congress, Hyatt Regency Orlando, Orlando, Florida, April 2-6, 1995. St. Joseph, MI, USA: ASAE. pp.181-186.
Drip irrigation ; Pepper ; Crop yield ; Fertilizers ; Nitrogen ; Water use efficiency ; Soil water ; Sandy soils / USA / Louisiana
(Location: IWMI-HQ Call no: 631.7 G000 LAM Record No: H018844)
3 Neary, P. E.; Storlie, C. A.; Paterson, J. W. 1995. Fertilization requirements for drip-irrigated bell peppers grown on loamy sand soils. In Lamm, F. R. (Ed.), Microirrigation for a changing world: Conserving resources/preserving the environment: Proceedings of the Fifth International Microirrigation Congress, Hyatt Regency Orlando, Orlando, Florida, April 2-6, 1995. St. Joseph, MI, USA: ASAE. pp.187-193.
(Location: IWMI-HQ Call no: 631.7 G000 LAM Record No: H018845)
4 Skaggs, R. K. 2001. Predicting drip irrigation use and adoption in a desert region. Agricultural Water Management, 51(2):125-142.
(Location: IWMI-HQ Call no: PER Record No: H028893)
5 Miranda, F. R.; Gondim, R. S.; Costa, C.A.G. 2006. Evapotranspiration and crop coefficients for tabasco pepper (Capsicum frutescens L.) Agricultural Water Management, 82(1/2):237-246.
(Location: IWMI-HQ Call no: PER Record No: H038688)
6 Adimassu, Zenebe; Balana, B. B.; Appoh, Richard; Nartey, Eric. 2020. The use of the wetting front detector as an irrigation-scheduling tool for pepper production in the upper east region of Ghana: evidence from field experiment and farmers' perceptions. Irrigation and Drainage, 69(4):696-713. [doi: https://doi.org/10.1002/ird.2454]
Irrigation scheduling ; Wetting front ; Crop yield ; Pepper ; Crop water use ; Water requirements ; Water productivity ; Farmers' attitudes ; Irrigation water ; Fertilizer application ; Soil properties ; Risks ; Field experimentation ; Economic analysis / Ghana / Nyangua / Tekuru
(Location: IWMI HQ Call no: e-copy only Record No: H049734)
(13.60 MB)
We compare the effect of the wetting front detector on yield and water productivity with farmers' practices (FP) and irrigation requirements based on crop water requirement calculation (IRCWR). A field experiment was conducted to assess the effect of the wetting front detector, FP and IRCWR combined with six fertilizer rates. We also interviewed 50 farmers to understand their perception about the use and associated concerns with the wetting front detector. Analysis of variance and partial budget economic analysis were performed. The results show that the wetting front detector saved 16% of irrigation water compared to FP, which in turn led to 16% labour saving to irrigate pepper as compared to FP. Yield and water productivity of pepper were not significantly affected by the irrigation regimes. Regardless of irrigation regimes, yield of pepper was significantly influenced by fertilizer treatment in both years. Although the highest fresh fruit yield of pepper (8.6 t ha-1 ) was recorded from Fortifer granules, the highest marginal rate of return was obtained from application of inorganic fertilizer including 173 N, 36 P,18 K ha ¹. The majority of farmers perceived the wetting front detector as low risk and compatible to use. The result also suggests that farmers are interested in buying and adopting the tool for future use.
7 Belay, S. A.; Assefa, T. T.; Prasad, P. V. V.; Schmitter, Petra; Worqlul, A. W.; Steenhuis, T. S.; Reyes, M. R.; Tilahun, S. A. 2020. The response of water and nutrient dynamics and of crop yield to conservation agriculture in the Ethiopian highlands. Sustainability, 12(15):5989. [doi: https://doi.org/10.3390/su12155989]
Conservation agriculture ; Water use ; Nutrient availability ; Crop yield ; Highlands ; Supplemental irrigation ; Conventional tillage ; Irrigation water ; Water management ; Crop management ; Pepper ; Growth period ; Fertilizers ; Phosphorus ; Nitrogen ; Leachates ; Rain ; Runoff ; Evapotranspiration / Ethiopia / Dengeshita
(Location: IWMI HQ Call no: e-copy only Record No: H049873)
(2.48 MB) (2.48 MB)
Smallholder agriculture constitutes the main source of livelihood for the Ethiopian rural community. However, soil degradation and uneven distribution of rainfall have threatened agriculture at present. This study is aimed at investigating the impacts of conservation agriculture on irrigation water use, nutrient availability in the root zone, and crop yield under supplementary irrigation. In this study, conservation agriculture (CA), which includes minimum soil disturbance, grass mulch cover, and crop rotation, was practiced and compared with conventional tillage (CT). We used two years’ (2018 and 2019) experimental data under paired-t design in the production of a local variety green pepper (Capsicum annuum L.). The results showed that CA practices significantly (a = 0.05) reduced irrigation water use (13% to 29%) and runoff (29% to 51%) while it increased percolated water in the root zone (27% to 50%) when compared with CT practices under the supplementary irrigation phase. In addition, CA significantly decreased NO3-N in the leachate (14% to 44%) and in the runoff (about 100%), while PO4-P significantly decreased in the leachate (33% to 50%) and in the runoff (16%) when compared with CT. Similarly, CA decreased the NO3-N load in the leachate and in the runoff, while the PO4-P load increased in the leachate but decreased in the runoff. The yield return that was achieved under CA treatment was 30% higher in 2018 and 10% higher in 2019 when compared with the CT. This research improves our understanding of water and nutrient dynamics in green pepper grown under CA and CT. Use of CA provides opportunities to optimize water use by decreasing irrigation water requirements and optimize nutrient use by decreasing nutrient losses through the runoff and leaching.
8 Alhassan, A.-R. M.; Limantol, A. M.; Larbi, I.; Akolaa, R. A.; Akolgo, G. A. 2023. Analyses of crop water use and environmental performance of small private irrigation along the white Volta Basin of northern Ghana. Heliyon, 9(8):e19181. [doi: https://doi.org/10.1016/j.heliyon.2023.e19181]
Irrigation schemes ; Irrigation water ; Irrigation systems ; Government ; Water conservation ; Agricultural productivity ; Environment ; Sustainability ; Farmers ; Land productivity ; Water productivity ; Biochemical oxygen demand ; Drainage systems ; Indicators ; Watersheds ; Water quality ; Water supply ; Rainfall ; Prices ; Rice ; Pepper ; Onions ; Tomatoes ; Okras ; Crop water use ; Water requirements ; Models ; Evapotranspiration / Ghana / Volta Basin / Bontanga Irrigation Scheme
(Location: IWMI HQ Call no: e-copy only Record No: H052147)
https://www.cell.com/action/showPdf?pii=S2405-8440%2823%2906389-2
https://vlibrary.iwmi.org/pdf/H052147.pdf
https://vlibrary.iwmi.org/pdf/H052147.pdf
(1.98 MB) (1.98 MB)
Small private irrigation (SPI) is a farmer-initiated irrigation which has the potential to increase the contribution of the overall irrigation sector to global food security. However, there is no much information about these systems for effective policies for regulation. This study compared the resource use productivities and environmental impacts of SPI systems to those of a government-led irrigation scheme (GIS) in Northern Ghana. The results showed that land productivity was higher in the SPI than in the GIS. Productivity per unit cultivated area was 2571.00 US$/ha under SPI while that of the GIS was 676.00 US$/ha. Output per unit command area was also two times higher in the SPI than in the GIS; that is 2571.00 US$/ha and 1113.00 US$/ha for SPI and GIS respectively. For water productivity, output per unit irrigation supply was 0.33 US$/m3 and 0.08US$/m3 for SPI and GIS respectively while output per unit water consumed by ET was 0.60 US$/m3 for SPI and 0.06 US$/m3 for the GIS. The results implied that the SPI schemes performed better in land and water productivities compared with the GIS which is attributed to higher yields and the selection of high valued crops by farmers under SPI. However, both irrigation system types at the time of this study did not cause significant deterioration to the water bodies and surrounding environment as the biochemical oxygen demand (BOD) values of nearby water bodies were less than 3.0–5.0 mg/l, which is considered as acceptable levels for drinking water by World Health Organisation (WHO) while salinity levels were also within acceptable limits (<750 µS/cm). With appropriate policies to regulate and provide support systems to the SPI, these systems may increase the overall agricultural productivity and improve job creation for the teeming unemployed youth and women in the savannah agroecological zone of Ghana.
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