Effects of row-spacing and stubble height on soil water content and water use by canola and wheat in the dry prairie region of Canada

Hu, Wei; Schoenau, Jeff J.; Cutforth, H. W.; Cheng, Bing

doi:10.1016/j.agwat.2015.02.008

Cited by 11 publications

(8 citation statements)

References 30 publications

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“…Our study combined with the results from Hu et al. (2015) underscore the need when examining the effect of row spacing of having a range of locations with varying yield potential to fully understand the stability of a wider row spacing.…”

Section: Resultsmentioning

confidence: 53%

“…It is interesting to note that 2013 the year most sensitive to row spacing was not more responsive to N rate than the other years despite its higher yield potential. Our study combined with the results from Hu et al (2015) underscore the need when examining the effect of row spacing of hav-ing a range of locations with varying yield potential to fully understand the stability of a wider row spacing.…”

Section: Grain Yield and Test Weightmentioning

confidence: 67%

“…However, there are limitations to acceptable row spacings. When growing spring wheat in a semi‐arid prairie climate, rows with 25‐ and 38‐cm spacings resulted in superior yield than trials with a spacing of 51 cm (Xie, Rourke, & Hargrave, 1998) and Hu, Schoenau, Cutforth, and Si (2015) observed that wheat yield tended to be higher at a 30‐cm row spacing compared to a 60‐cm row spacing . In addition a wider row spacing may provide weeds with less competition as observed by Reinertsen, Cochran, and Morrow (1984).…”

Section: Introductionmentioning

confidence: 99%

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Feasibility of a wider row spacing and recommended nitrogen in no‐till wheat

2020

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The optimal row spacing aims to maximize profitability by balancing the reduction in production costs from a wider row spacing against a potential decline in yield and increased weed pressure. A wider row spacing should increase area seeded per day, improve residue flow around seeder openers and the success of seeding between stubble rows. This study investigated the feasibility of a wider row spacing by studying the effects of row spacing (25, 30, 35, 40 cm) and N fertilizer rates (20, 40, 80, 120, 160 kg N ha −1) on development, yield, and quality of spring wheat (Triticum aestivum L.). The study was a two factorial in randomized complete block design. The experiment was conducted at Indian Head, SK, from 2013 to 2016. Row spacing affected plant, head, and seed density; however, the effects were generally inconsistent. One exception was biomass, which decreased as the row spacing increased in 3 of the 4 yr. Grain yield declined in 1 of the 4 yr, with the largest portion of the decrease occurring as the row spacing increased from 30 to 40 cm. As expected, increasing N rates produced greater grain yield, biomass, and grain protein. In conclusion, this study found that in most years the row spacing can be widened past 30 cm without a negative impact on grain yield in a no-till cropping system. However, to determine the probability of a grain yield decrease as row spacing is increased, a larger study over a wider geographic region is needed. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Section: Resultsmentioning

confidence: 53%

Section: Grain Yield and Test Weightmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

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Feasibility of a wider row spacing and recommended nitrogen in no‐till wheat

2020

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“…] 0-120 cm soil profile at the 2013 spring planting time, whereas Swift Current in the 2013 growing season had 198 mm of precipitation and the following spring (2014) had only 111 mm of water detected in the 0-120 cm soil profile. Also, other factors may affect spring soil water availability, such as the amount of snowfall during the fall-winter period (Kormos et al 2014), stubble retention at the harvest of the previous crops that affects the catchment of snow (Hu et al 2015), spring soil temperature, soil organic matter that affects water drainage (Hayes et al 2008), water holding capacity (Naeth et al 1991), and snowmelt runoff (Rhoton et al 2002).…”

Section: Discussionmentioning

confidence: 99%

Soil residual water and nutrients explain about 30% of the rotational effect in 4-year pulse-intensified rotation systems

Niu¹,

Bainard²,

Bandara³

et al. 2017

Can. J. Plant Sci.

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Diverse crop rotations enable the best use of residual soil water and nutrients, thus decreasing necessary production inputs. Here, we determined the effect of cropping sequences on soil residual water and nutrients and the performance of subsequent wheat (Triticum aestivum L.). Nine rotation systems were evaluated at Swift Current, SK, and Brooks, AB, from 2010 to 2014. Pea (P, Pisum sativum L.) and lentil (L, Lens culinaris Medik.) as preceding crops before wheat (W) or the rotation systems with pea (P-P-P-W) or lentil (L-L-L-W) included more than once in the 4-yr rotations had the highest residual soil water and N in the 30-90 cm depth and continuous wheat (W-W-W-W) had the lowest. Preceding pea and lentil increased the grain yield of the subsequent wheat by 26% and 18%, respectively, as compared with continuous wheat. Variance partitioning of redundancy analysis revealed that soil residual water and residual N explained 12.4%-42.7% (average 30%) of the yield variation observed in the subsequent wheat, with the rest of the rotational benefits unexplainable by soil residual water and residual nutrients. Investigation of the factors other than soil water and nutrients that contribute to the succeeding wheat yield may further enhance the rotational effect.

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“…By creating a more complicated microclimate that could influence the distribution of surface soil water content, studies in southeastern Saskatchewan show that seeding into tall stubble increases yield and water use efficiency of wheat, pulses, and canola versus seeding into cultivated cereal stubble [37][38][39]. Extratall (45 cm) stubble can further increase yield of these crops [40], but the effect disappears at row spacing >30 cm [62]. In the CP, some growers have adopted the stripper header that leaves tall standing stubble for seeding canola in the following crop year.…”

Section: Components Of Oilseed Production Systems In the Northwesternmentioning

confidence: 97%

Development of Dryland Oilseed Production Systems in Northwestern Region of the USA

Long¹,

Young

Schillinger

et al. 2016

Bioenerg. Res.

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This report addresses the development of dryland oilseed crops to provide feedstock for production of biofuels in semi-arid portions of the northwestern USA. Bioenergy feedstocks derived from Brassica oilseed crops have been considered for production of hydrotreated renewable jet fuel, but crop growth and yields in the northwestern region are limited by a lack of plant available water. Based on a review of the scientific literature, several areas were identified where research could be directed to provide improvements. The current agronomic limitations for oilseed production are mainly due to seedling establishment under extreme heat, dry seedbeds at optimum planting times, survival under extreme cold, and interspecific competition with weeds. To improve emergence and stand establishment, future work should focus on developing soil management and seeding techniques that optimize plant available water, reduce heat stress, and provide a competitive advantage against weeds that are customized for specific crops, soil types, and soil and environmental conditions. Spring and winter cultivars are needed that offer increased seedling vigor, drought resistance, and cold tolerance.

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Effects of row-spacing and stubble height on soil water content and water use by canola and wheat in the dry prairie region of Canada

Cited by 11 publications

References 30 publications

Feasibility of a wider row spacing and recommended nitrogen in no‐till wheat

Feasibility of a wider row spacing and recommended nitrogen in no‐till wheat

Soil residual water and nutrients explain about 30% of the rotational effect in 4-year pulse-intensified rotation systems

Development of Dryland Oilseed Production Systems in Northwestern Region of the USA

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