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| Web URL(s): | https://www.crops.org/publications/cs/pdfs/38/6/CS0380061639
Last checked: 08/05/2010
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| Publication Type:
| Refereed |
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| Author(s): | Cooper, R. J.;
Liu, Chunhua;
Fisher, D. S. |
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| Author Affiliation: | Cooper & Liu: Department of Crop Science, North Carolina State University, Raleigh, NC 27695; and Fisher: USDA Southern Piedmont Conservation Research Center, Watkinsville, GA 30677 |
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| Title: | Influence of humic substances on rooting and nutrient content of creeping bentgrass |
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| Section: | Turfgrass science
Other records with the "Turfgrass science" Section
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| Source: | Crop Science. Vol. 38, No. 6, November/December 1998, p. 1639-1644. |
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| Publishing Information: | Madison, WI: Crop Science Society of America |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Humic acids; Application methods; Application rates; Root weight; Root length; Nutrient uptake; Phosphorus uptake; Foliar targeted spraying; Soil amendments
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| Abstract/Contents: | "Two greenhouse experiments were conducted to determine if application of humic substances to creeping bentgrass (Agrostis stolonifera L.) turf would improve root mass, root length, or nutrient uptake. A commercially mined granular humate, a commercial liquid humic acid (HA), and liquid HAs extracted from leonardite, peat, and soil were applied to creeping bentgrass growing in either sand or solution culture and miantained at a height of 6 mm. Foliar applications included monthly or biweekly applications of HAs at 0, 100, 200, or 400 mg HA Lā»Ā¹. In sand culture, humate incorporated to a depth of 10 cm stimulated a 45% increase in root mass at the 0- to 10-cm depth and a 38% increase in root mass at the 10- to 20-cm depth compared with the control. Incorporation of granular humate increased maximum root length 15% compared with non-treated turf in sand culture. No foliar applied HA source consistently provided rooting superior to the control in either sand or solution culture. Nitrogen, Ca, Mg, and Fe uptake were relatively unaffected by humic substance application. The phosphorous concentration of plants in sand culture was increased 3 to 5% by incorporated humate and foliar application of soil, peat, or Leonardite-derived HA. In solution culture, however, P uptake was unaffected by HA application. The lack of improved rooting or increased P uptake in solution culture supports the hypothesis that humic acids may have limited growth promoting effects on plants adequately supplied with nutrients." |
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| Language: | English |
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| References: | 22 |
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| See Also: | Other items relating to: Biostimulants
Other items relating to: Foliar Feeding & Uptake |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Cooper, R. J., C. Liu, and D. S. Fisher. 1998. Influence of humic substances on rooting and nutrient content of creeping bentgrass. Crop Sci. 38(6):p. 1639-1644. |
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| Web URL(s):
https://www.crops.org/publications/cs/pdfs/38/6/CS0380061639
Last checked: 08/05/2010
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 183 .C7 |
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