Spatial and temporal trends in soil properties and crop yield at a site under intensive up- and down-slope potato production in northwestern New Brunswick

Rees, H. W.; Chow, T. L.; Gregorich, E.G.

doi:10.4141/cjss07017

Cited by 13 publications

(24 citation statements)

References 34 publications

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“…(1 reported by Rees et al (2007) from paired benchmark site (20-NB) with potato cultivated up-and-down slope for only five of the 10 reported years. The site reported here (22-NB) was in potato 7 out of the 10 monitored years.…”

Section: Resultsmentioning

confidence: 99%

“…The last year in barley (1999) was underseeded to ryegrass. Typical farming practices for grain and potato production were reported in details by Rees et al (2007). Over the 10-yr monitoring period, additions of N, P 2 O 5 (P) and K 2 O (K) totaled 1283, 840 (367) and 1029 (854) kg ha (1 , respectively.…”

Section: Site History and Managementmentioning

confidence: 99%

“…Both research groups found changes in some sensitive soil properties, such as SOC content, even over this short a period of time. Rees et al (2007) reported significant changes in available plant nutrients as well as SOC content over a 10-yr period at a site in New Brunswick (Podzols and Brunisols in the Saint John River Valley ecoregion of the Atlantic Maritime ecozone) under up and down slope cultivation of potato (benchmark site 20-NB).…”

Section: Yrmentioning

confidence: 99%

“…Soil conservation practices at this site included contour cultivation, variable grade diversions and a grassed waterway. This site was ''paired'' with nearby benchmark site 20-NB (Rees et al 2007), where no soil conservation practices were employed.…”

Section: Yrmentioning

confidence: 99%

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Soil and crop responses to long-term potato production at a benchmark site in northwestern New Brunswick

Rees¹,

Chow²,

Gregorich³

2008

Can. J. Soil. Sci.

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Concerns about deteriorating soil quality led to Agriculture and Agri-Food Canada establishing a network of 23 soil quality monitoring benchmark sites with the objective of providing a baseline data set for assessing change in soil quality and biological productivity of representative Canadian farming systems. A site (22-NB) was established in 1990 in northwestern New Brunswick to monitor changes in Podzolic and Brunisolic soils developed on coarse loamy till on a rolling landscape under intensive potato (Solanum tuberosum L.) production [potato-potato-barley (Hordeum vulgare L.) rotation] that was cultivated along the contour with variable grade diversions and a grassed waterway. Soil samples were collected in 1990 and again in 2000. Field saturated hydraulic conductivity (Kfs) at 10–20, 26–36 and 50–60 cm, earthworm counts and crop yield measurements were conducted annually. 137Cs data were collected in 1990 to estimate soil displacement at the site. Runoff and soil loss between May 01 and Nov. 30 were measured annually. The soil conservation system at site 22-NB has resulted in annual runoff and soil loss of only 9 mm and 311 kg ha-1, respectively. Measured values of 137Cs averaged 2114 Bq m-2 (70% of baseline). Changes in the Ap horizon properties between 1990 and 2000 included significant (P < 0.05) increases in available P (+ 86.7 mg kg-1) and K (+ 13.4 mg kg-1) and significant reductions in available Mg (−45.8 mg kg-1) and SOC (−0.51 g kg-1). The Kfs of 10- to 20-cm, 26- to 36-cm and 50- to 60-cm depths were 1.3, 1.0 and 1.0 cm h-1, respectively. Very few earthworms were present (0.05 worms m-2). The upper terrace was consistently the highest yielding in both potato and barley, while the lowest terrace was consistently the lowest yielding in both crops. Crop yields may have been affected by micro-climate and other soil differences as a result of site position.While the system of contour tillage with variable grade diversions and grassed waterway conserved both soil and water, the potato-potato-grain rotation did not maintain SOC levels or sustain earthworm populations. Associated heavy rates of fertilization also lead to increased levels of soil K and P. Key words: Soil quality, soil organic carbon, hydraulic conductivity, earthworms, runoff, water erosion

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Section: Resultsmentioning

confidence: 99%

Section: Site History and Managementmentioning

confidence: 99%

Section: Yrmentioning

confidence: 99%

Section: Yrmentioning

confidence: 99%

See 2 more Smart Citations

Soil and crop responses to long-term potato production at a benchmark site in northwestern New Brunswick

Rees¹,

Chow²,

Gregorich³

2008

Can. J. Soil. Sci.

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“…Perhaps the most serious soil erosion that leads to degraded environmental quality exists in relation to potato production (Chow et al 1990;Rees et al 2007), a major agricultural commodity in the provinces of New Brunswick and Prince Edward Island, Canada. To reduce environmental risk, several BMPs, such as grassed waterway/diversion and agriforest, have been developed and adopted in the potato production areas over the past 50 years.…”

mentioning

confidence: 99%

Hydrology and water quality across gradients of agricultural intensity in the Little River watershed area, New Brunswick, Canada

Chow¹,

Xing²,

Benoy³

et al. 2010

Journal of Soil and Water Conservation

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Investigations into the opportunity for spatial management of the quality and quantity of production in UK potato systems

Taylor

Chen

Smallwood³

et al. 2018

Field Crops Research

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Effectively adopting site-specific crop management is dependent on there being production variation within the system. There has been very little published material on yield variation in potatoes and almost none on tuber quality. A review of literature and a systematic survey of 13 potato fields in the UK was performed to better understand within-field variability in potato quantity and quality attributes, including stem density, total yield, marketable yield and tuber size distribution. Non-spatial and spatial statistical analysis of manual and sensor observations was performed on the survey data. Ware production fields exhibited more structured spatial variation in quality attributes (tuber size distribution and % marketable yield) rather than yield attributes. Seed production systems were inversed, with more structured spatial variability in yield attributes than quality attributes. Manual and sensor yield data exhibited a similar level of spatial variation, however the spatially denser sensor data indicated a nested effect with a large amount of short-range variation that may be management related. Both quality and quantity parameters showed sufficient magnitude and range in variation for site-specific management to be considered. The results presented here provide a baseline for spatial variation in both potato quantity and quality to inform future work, particularly for work considering spatial management or spatial modelling in potatoes.

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Spatial and temporal trends in soil properties and crop yield at a site under intensive up- and down-slope potato production in northwestern New Brunswick

Cited by 13 publications

References 34 publications

Soil and crop responses to long-term potato production at a benchmark site in northwestern New Brunswick

Soil and crop responses to long-term potato production at a benchmark site in northwestern New Brunswick

Hydrology and water quality across gradients of agricultural intensity in the Little River watershed area, New Brunswick, Canada

Investigations into the opportunity for spatial management of the quality and quantity of production in UK potato systems

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