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Impact of modified tillage on runoff and nutrient loads from potato fields in Prince Edward Island

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  • Gordon, R.J.
  • VanderZaag, A.C.
  • Dekker, P.A.
  • De Haan, R.
  • Madani, A.

Abstract

Potato production accounts for ~24% of the cultivated land-use in Prince Edward Island, Canada. The island often experiences prolonged dry periods interspersed with excessive rainfall events throughout the growing season. Thus, water retention is important for maximum crop production while sediment and nutrient loading to surface water systems are also concerns. Therefore, agronomic practices that reduce the environmental impact of potato production are being sought. Basin tillage (BT) is a potential option in which small dams are created in the furrows (row middles), resulting in basins that enhance infiltration, reduce runoff, minimize contaminant loads, and increase yields. This on-farm study compared BT against two types of 'conventional' hilling treatments with replicated plots on four field sites over two growing seasons. Field sites had sandy loam soils with topography slopes ranging from 3% to 5%. Within each field, nine 25Â m long and 3.66Â m wide (4 rows) plots were established, including three plots of each hilling treatment (CTÂ =Â conventional tillage; RSÂ =Â row shaper tillage; BTÂ =Â basin tillage). Runoff volume, nutrient (phosphate, ammonium, nitrate) and suspended solids loads were measured using collection barrels on the down slope end of each furrow. Basin tillage had 78% and 75% less runoff than CT and RS, respectively (PÂ

Suggested Citation

  • Gordon, R.J. & VanderZaag, A.C. & Dekker, P.A. & De Haan, R. & Madani, A., 2011. "Impact of modified tillage on runoff and nutrient loads from potato fields in Prince Edward Island," Agricultural Water Management, Elsevier, vol. 98(12), pages 1782-1788, October.
  • Handle: RePEc:eee:agiwat:v:98:y:2011:i:12:p:1782-1788
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    References listed on IDEAS

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    1. Nuti, R.C. & Lamb, M.C. & Sorensen, R.B. & Truman, C.C., 2009. "Agronomic and economic response to furrow diking tillage in irrigated and non-irrigated cotton (Gossypium hirsutum L.)," Agricultural Water Management, Elsevier, vol. 96(7), pages 1078-1084, July.
    2. Truman, C.C. & Nuti, R.C., 2009. "Improved water capture and erosion reduction through furrow diking," Agricultural Water Management, Elsevier, vol. 96(7), pages 1071-1077, July.
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    1. Daniel Vejchar & Josef Vacek & David Hájek & Jiří Bradna & Pavel Kasal & Andrea Svobodová, 2019. "Reduction of surface runoff on sloped agricultural land in potato cultivation in de-stoned soil," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 65(3), pages 118-124.
    2. Petra Oppeltová & Pavel Kasal & František Krátký & Jana Hajšlová, 2021. "Analysis of Selected Water Quality Indicators from Runoff during Potato Cultivation after Natural Precipitation," Agriculture, MDPI, vol. 11(12), pages 1-24, December.
    3. Ou, Yang & Rousseau, Alain N. & Yan, Baixing & Wang, Lixia & Zhang, Yu, 2021. "Grass barriers for mitigating diffuse pollution within a source water area - A case study of Northeast China," Agricultural Water Management, Elsevier, vol. 243(C).

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