Trends in soil quality under high tunnels

Sharon J B Knewtson, Rhonda Janke, M. B. Kirkham, Kimberly A. Williams, Edward E. Carey

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Growers have indicated that changes in soil quality under production in high tunnels is an important problem, but these have not yet been quantified or critically assessed in the central Great Plains of the United States. We conducted surveys of grower perceptions of soil quality in their tunnels (n = 81) and compared selected soil quality indicators (salinity and particulate organic matter carbon) under high tunnels of varying ages with those of adjacent fields at sites in Kansas, Missouri, Nebraska, and Iowa in the United States. Fourteen percent of growers surveyed considered soil quality to be a problem in their high tunnels, and there were significant correlations between grower perceptions of soil quality problems and reported observations of clod formation and surface crusting and to a lesser extent surface mineral deposition. Grower perception of soil quality and grower observation of soil characteristics were not related to high tunnel age. Soil surface salinity was elevated in some high tunnels compared with adjacent fields but was not related to time under the high tunnel. In the soil upper 5 cm, salinity in fields did not exceed 2 dS·m-1 and was less than 2 dS·m-1 under 74% of high tunnels and less than 4 dS·m-1 in 97% of high tunnels. The particulate organic matter carbon fraction was higher in high tunnels than adjacent fields at 73% of locations sampled. Particulate organic matter carbon measured 0.11 to 0.67 g particulate organic matter per g of the total carbon under high tunnels sampled. Particulate organic matter carbon in the soil was also not correlated to age of high tunnel. Soil quality as measured in this study was not negatively impacted by use of high tunnel structures over time.

Original languageEnglish
Pages (from-to)1534-1538
Number of pages5
JournalHortScience
Volume45
Issue number10
Publication statusPublished - Oct 2010

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soil quality
growers
carbon
salinity
soil
particulate organic matter
minerals

Keywords

  • Hoophouse
  • Particulate organic matter carbon
  • Salinity
  • Survey
  • Total carbon

ASJC Scopus subject areas

  • Horticulture

Cite this

Knewtson, S. J. B., Janke, R., Kirkham, M. B., Williams, K. A., & Carey, E. E. (2010). Trends in soil quality under high tunnels. HortScience, 45(10), 1534-1538.

Trends in soil quality under high tunnels. / Knewtson, Sharon J B; Janke, Rhonda; Kirkham, M. B.; Williams, Kimberly A.; Carey, Edward E.

In: HortScience, Vol. 45, No. 10, 10.2010, p. 1534-1538.

Research output: Contribution to journalArticle

Knewtson, SJB, Janke, R, Kirkham, MB, Williams, KA & Carey, EE 2010, 'Trends in soil quality under high tunnels', HortScience, vol. 45, no. 10, pp. 1534-1538.
Knewtson SJB, Janke R, Kirkham MB, Williams KA, Carey EE. Trends in soil quality under high tunnels. HortScience. 2010 Oct;45(10):1534-1538.
Knewtson, Sharon J B ; Janke, Rhonda ; Kirkham, M. B. ; Williams, Kimberly A. ; Carey, Edward E. / Trends in soil quality under high tunnels. In: HortScience. 2010 ; Vol. 45, No. 10. pp. 1534-1538.
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