A Comparison of Two Methods for Determining the Evapotranspiration and Drainage Components of the Soil Water Balance

Maulé, Charles; Chanasyk, D. S.

doi:10.4141/cjss87-004

Cited by 11 publications

(5 citation statements)

References 15 publications

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“…Selected characteristics for both soil series are presented in Table I. Additional site and soil characteristics have been published for the Malmo (Pawluk, 1986;Maule and Chanasyk, 1987) and for the Breton (McGill et al, 1987;Fyles et al, 1988) soils. Average frost-free days at Ellerslie and Breton are 109 and 80, respectively.…”

Section: Comparison Of Cropping Systemsmentioning

confidence: 99%

Plant and Nitrogen Yield of Barley‐Field Pea Intercrop in Cryoboreal‐Subhumid Central Alberta

1990

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Growing legumes with cereals may increase both yield and protein of livestock‐feed crops as well as the quantity of N returned to soil. This study examined: (i) if barley‐field pea intercropping has advantage over sole barley (Hordeum vulgare L.) for grain and N yield and (ii) the interactions between fertilizer N and seeding densities of barley and field pea (Pisum sativum L.). In 1986 and 1987, crop and N yields of barley and barley‐pea were compared on a Malmo silt loam (Typic Cryoboroll) and a Breton loam (Typic Cryoboralf). In 1987, fertilizer N (0 and 80 kg N ha−1) and seeding density (0, 86,172, 258 seeds m−2 of barley; and 0, 25, 50, 75 seeds m−2 of field pea) effects on intercrop yield were determined on the Malmo soil. In 1986, intercropped‐barley yields at both sites were similar to sole crop yields due to low pea competition; but in 1987, they were 35 to 40% lower than sole crop yields. In three of four location‐years, grain‐N yield was higher in the intercrop than in sole barley. Nitrogen returned to soil in barley‐pea residues was at least 22% higher than in barley straw. Of the intercrop components, only barley‐straw yield increased when fertilized with 80 kg N ha−1. Peagrain yields were not affected by barley seeding rates; but barley yields decreased linearly when pea density increased from 0 to 75 seeds m−2. Fertilizer N did not interact with seeding densities of barley and pea. Area × Time Equivalent Ratios indicated an advantage of intercropping over sole cropping in N but not in plant yield. Barley‐pea intercrops, each species seeded at half its sole rate, appear to increase N production in grain and straw over sole cropping under both soil‐climate conditions.

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Section: Comparison Of Cropping Systemsmentioning

confidence: 99%

Plant and Nitrogen Yield of Barley‐Field Pea Intercrop in Cryoboreal‐Subhumid Central Alberta

1990

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“…Unsaturated water fluxes below the root zone have been determined for the semi-arid region of the Canadian prairies for undulating landscapes in the Brown soil zone (de Jong and Zentner 1985), hummocky landscapes in the Dark Brown zone (Woods et al 2006;Si and de Jong 2007), as well as hummocky (Zebarth and de Jong 1989) and rolling (Maule and Chanasyk 1987) landscapes in the Black soil zone. However, we are unaware of any research that has quantified vertical unsaturated flux below the root zone for mid and lower slope positions within inclined, low-relief, and longerslope landscapes of the Dark Brown soil zone.…”

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confidence: 99%

Unsaturated water flux at mid and lower slope positions within an inclined landscape of the Dark Brown soil zone in southern Alberta

MillerJ.

ChanasykD.

2015

Can. J. Soil. Sci.

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Miller, J. J. and Chanasyk, A. S. 2015. Unsaturated water flux at mid and lower slope positions within an inclined landscape of the Dark Brown soil zone in southern Alberta. Can. J. Soil Sci. 95: 27–36. Little research has quantified vertical-unsaturated water flux below the root zone for mid and lower slope positions within inclined, low-relief, and longer-slope landscapes of the Dark Brown soil zone of the Canadian prairies. We measured soil moisture (0.23–1.22 m) in the field at mid and lower slope positions in southern Alberta from May to October in 1985 and 1986. Undisturbed soil cores were taken from soil horizons and saturated hydraulic conductivity and soil moisture retention were determined in the laboratory. Vertical-unsaturated water flux below the root zone was calculated between 1.07 and 1.22 m depths below ground surface using the hydraulic gradient method. Water fluxes for the 2 yr ranged from <10−11 to 10−10 m s−1 at the mid slope position, and from <10−11 m s−1 to 10−9 m s−1 at the lower slope position, and were consistent with some other studies. Cumulative water flux was dominantly downward (−2.2 to −3.4 mm) at the mid slope position and this flow direction was consistent with this Orthic Dark Brown Chernozemic soil that was located in a “recharge area”. Cumulative water flux was dominantly upward at the lower slope position in 1985 (1.4 mm) and dominantly downward but of very low magnitude in 1986 (−0.1 mm), and this flow direction was consistent with this saline Gleyed Regosol and “saline seep”. Cumulative water fluxes as a percentage of annual precipitation were 0.8 to 1.8% at the mid slope position and 0.3 to 0.5% at the lower slope position.

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“…Goss et al (1984) O'sullivan (1995) observed that in a humid environment on land cropped to spring bjrrley most changes in soil water occurred in the top 0.4 m. The rate of soil drying was greater when the land was plowed prior to seeding than when seeding was by direct drilling; however, the greater water uptake from topsoil by spring barley grown on the plowed treatment, did not increase yields. In a subhumid environment, Maul6 and Chanasyk (1987) (Fig. a).…”

mentioning

confidence: 99%

Soil water under conventional and alternative cropping systems in cryoboreal subhumid central Alberta

Izaurralde¹,

Chanasyk²,

Juma³

1994

Can. J. Soil. Sci.

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A Comparison of Two Methods for Determining the Evapotranspiration and Drainage Components of the Soil Water Balance

Cited by 11 publications

References 15 publications

Plant and Nitrogen Yield of Barley‐Field Pea Intercrop in Cryoboreal‐Subhumid Central Alberta

Plant and Nitrogen Yield of Barley‐Field Pea Intercrop in Cryoboreal‐Subhumid Central Alberta

Unsaturated water flux at mid and lower slope positions within an inclined landscape of the Dark Brown soil zone in southern Alberta

Soil water under conventional and alternative cropping systems in cryoboreal subhumid central Alberta

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