Groundwater contribution to irrigated potato production in the Canadian Prairies.

Abbas, Haider; Ranjan, R. Sri

doi:10.7451/cbe.2015.57.1.13

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…This indicates that the sprinkler irrigation method has potential to save irrigation water in shallow water table areas once the water table level is controlled. These contributions were similar to those previous reported by Abbas and Ranjan (2015) for a potato crop. The present study findings also corroborate that, in regions with shallow water tables, the contribution from the upward water flux can be managed as a secondary water source when the main irrigation water application method is sprinkler (Ayars et al, 2006; Vanderleest et al, 2016).…”

Section: Resultssupporting

confidence: 92%

Soil Water Dynamics of Shallow Water Table Soils Cultivated With Potato Crop

Silva

Hashiguti

Zotarelli

et al. 2018

Vadose Zone Journal

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Agricultural areas with shallow water tables usually rely on upward soil water flux to supply crop evapotranspiration (ETc). The study objective was to determine optimum water table levels for coarse-textured soils cultivated with potato (Solanum tuberosum L.) by estimating the upward soil water flux under different irrigation methods. Potato was grown under seepage, subirrigation with tile drainage, subsurface drip irrigation (SDI), and sprinkler irrigation. Irrigation zones were classified as sandy soil with low soil organic matter (SOM) and high bulk density (B d ), or loamy sand soil with high SOM and low B d . Upward soil water flux supplied enough water to the root zone to meet ETc when the water table was at the 69-cm depth for loamy sand soils under seepage, and 42 and 45 cm for sandy soils under subirrigation and SDI, respectively. The sprinkler-irrigated area had no control over the water table, whereby the cumulative contribution of upward water flux still averaged 6.3 cm, suggesting that irrigation rates could be reduced if the water table is controlled and upward flux accounted for in the crop water balance. Rainfall introduces flooding risks and crop losses, but these risks are minimized with management. The water table elevation/precipitation ratio was 34.4 and 25.6 cm cm −1 of rain for loamy sand and sandy soils. After precipitation, the water table returned to the original levels twice as fast under subirrigation than with other methods given improved drainage capacity. Soil characteristics, irrigation method, upward water flux, and proper water table management are important factors for maintaining ideal soil moisture conditions in the crop root zone, minimizing flooding risk.

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Section: Resultssupporting

confidence: 92%

Soil Water Dynamics of Shallow Water Table Soils Cultivated With Potato Crop

Silva

Hashiguti

Zotarelli

et al. 2018

Vadose Zone Journal

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show abstract

“…In the present study, groundwater contribution to soil water content was not evaluated due to unavailability of data to do full water balance. Previous studies at the experimental site also demonstrated that groundwater contributes to soil water to meet crop water demands (Abbas and Sri Ranjan 2015;Cordeiro et al 2015).…”

Section: Results and Discussion Sources Of Water In The Soil Profilementioning

confidence: 66%

HYDRUS (2d/3d) simulation of water flow through sandy loam soil under potato cultivation in Southern Manitoba

Ranjan

2017

Can. Biosyst. Eng.

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The HYDRUS (2D/3D) modeling tool was used to simulate water flow through subsurface-drained sandy loam soil under potato (Solanum tuberosum) cultivation in Southern Manitoba. The model was used to simulate water flow through a 2-D model domain of dimensions, 15 m width Ã 2.5 m depth. The model was calibrated and validated with field data measured during the growing season of year 2011 at the Hespler Farms, Winkler, Manitoba. Field measurements, including soil water content and watertable depth, for two test plots under subsurface free drainage were used for the calibration and validation. Weather data were also obtained to estimate reference crop evapotranspiration, which was used as input data in the model. Based on the reference crop evapotranspiration, and crop coefficient of the potato crop, the actual crop evapotranspiration was estimated and compared to the simulated actual crop evapotranspiration results. The results showed that the model was able to account for 50% to 78% of the variation in the estimated actual crop evapotranspiration. With respect to water flow through the soil, the observed soil water content and the simulated soil water content were compared using graphical and quantitative analysis. Based on the coefficient of determination (R2), the model accounted for 68% to 89% variation in the observed data. The intercept of the regression line varied from 0.01 to 0.08, and the slope, 0.75 to 0.99. The NashâSutcliffe modeling efficiency coefficient (NSE) varied from 0.62-0.89, the Percent bias (PBIAS) values varied from -1.99% to 1.16%. The root mean square error-observations standard deviation ratio (RSR) values varied from 0.33 to 0.61. The values for the evaluation parameters show that the model was able to simulate the water flow through the soil profile reasonably well.

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“…Groundwater analysis done prior to the study showed an average nitrate concentration of 55 ppm. A study conducted in the same area during the 2013 and 2014 growing seasons confirmed the upward migration of groundwater during the dry periods (Abbas and Sri Ranjan 2015). The non-irrigated plots may have pulled the nitraterich water from the shallow water table through capillary rise to meet the crop water demand during the dry period.…”

Section: Nitrate Concentrationsmentioning

confidence: 87%

Effect of soil moisture deficit on marketable yield and quality of potatoes.

Ranjan¹

2015

Can. Biosyst. Eng.

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Effect of soil moisture deficit on marketable yield and quality of potatoes. Canadian Biosystems Engineering/Le génie des biosystèmes au Canada 57: 1.25-1.37. Tuber yield and quality are the two main factors that can increase or decrease the market value of potatoes. Soil moisture availability and nutrient concentration within the potato root zone play a pivotal role in controlling tuber yield and quality. This study was conducted in Southern Manitoba to compare the effects of overhead irrigation (IR) and no-irrigation (NI) on marketable tuber yield and quality during the 2013-and 2014-growing seasons. The total yield of potato was not significantly different between the two treatments in both years. In 2013, the marketable yield of the irrigated (IR) treatment (36.89 MT/ha) was 20% higher (p = 0.017) compared to the nonirrigated (NI) treatment (30.74 MT/ha). However, no significant difference in marketable yield was found between the irrigated (39.0 MT/ha) and non-irrigated (43.7 MT/ha) treatments in 2014. Excess nitrate accumulation within the root zone tends to promote the formation of over-sized tubers. Although the incidence of hollow hearts and sugar ends showed a higher trend in the non-irrigated treatment it was statistically not significantly different from the irrigated treatment. Overhead irrigation was found to be economically advantageous to produce better quality potatoes with higher marketable yields.

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Groundwater contribution to irrigated potato production in the Canadian Prairies.

Cited by 5 publications

References 10 publications

Soil Water Dynamics of Shallow Water Table Soils Cultivated With Potato Crop

Soil Water Dynamics of Shallow Water Table Soils Cultivated With Potato Crop

HYDRUS (2d/3d) simulation of water flow through sandy loam soil under potato cultivation in Southern Manitoba

Effect of soil moisture deficit on marketable yield and quality of potatoes.

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