| |
| Web URL(s): | http://usgatero.msu.edu/v08/n14.pdf
Last checked: 07/27/2009
Requires: PDF Reader |
|---|
| Publication Type:
| Report |
|---|
| Author(s): | Fu, Jinmin;
Dernoeden, Peter H. |
|---|
| Author Affiliation: | Fu: Horticulture Professor, Wuhan Botanical Garden, The Chinese Academy of Science, Wuhan City, Hubei, China; Dernoeden: Professor, Department of Plant Science and Landscape Architecture, University of Maryland, College Park, Maryland |
|---|
| Title: | Creeping bentgrass putting green turf responses to two summer irrigation practices: Rooting and soil temperature |
|---|
| Source: | USGA Turfgrass and Environmental Research Online. Vol. 8, No. 14, July 15 2009, p. [1-14]. |
|---|
| Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
|---|
| # of Pages: | 16 |
|---|
| Keywords: | TIC Keywords: Agrostis stolonifera; Golf greens; Irrigation frequency; Irrigation practices; Irrigation rates; Root growth; Rooting; Soil temperature; Summer
|
|---|
| Abstract/Contents: | "Light and frequent (LF) and deep and infrequent (DI) irrigation are two common practices for golf course managers. Few studies have compared the effects of these two opposing irrigation practices on summer root performance in creeping bentgrass (Agrostis stolonifera L.). The objectives of this field study were to quantify summer root development and longevity in response to light frequent versus deep infrequent irrigation in Providence creeping bentgrass grown on a sand-based rootzone. The light frequent irrigated plots were irrigated daily to moisten the upper 4 to 6 cm (1.6 to 2.4 in.) of soil; whereas, deep infrequent irrigated plots were irrigated at leaf wilt to wet soil to a depth approximately 24 cm (9.5 in.). Root measurements were obtained using the minirhizotron imaging technique and included total root count, total root length, total root surface area, and average root diameter. Key findings include: Deep infrequent-irrigated creeping bentgrass produced a greater number of roots, longer root lengths, and a larger root surface area than light frequent-irrigated turf throughout most of the 0 to 24 cm rootzone depth. When compared to data collected in the first year of establishment (2006), the two-year-old turf had 55% and 32% fewer roots in light frequent- and deep infrequent-irrigated bentgrass by September 2007, respectively. There were similar reductions in total root length and total root surface area between years in both irrigation regimes. Average daily maximum soil temperatures measured at a soil depth of 2.0 cm (0.8 in. or just below crowns where roots emanate) in light frequent- and deep infrequent-irrigated plots were similar to maximum air temperature. Hence, method of irrigation did not contribute to heat stress near the surface area of the sand-based rootzone. Deep and infrequent irrigation stimulated root growth throughout the 0 to 24 cm rootzone in May and June and promoted root longevity in summer, but a majority (average 60%) of roots were found in the upper 6.0 cm (2.6 in.), regardless of irrigation method. This research verifies the axiom that it is best to irrigate creeping bentgrass deeply and infrequently at wilt." |
|---|
| Language: | English |
|---|
| References: | 19 |
|---|
| See Also: | Other Reports from this USGA research project: 2006-14-322 |
|---|
| Note: | Summary as abstract
Pictures, color
Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fu, J., and P. H. Dernoeden. 2009. Creeping bentgrass putting green turf responses to two summer irrigation practices: Rooting and soil temperature. USGA Turfgrass Environ. Res. Online. 8(14):p. [1-14]. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=152876 |
| If there are problems with this record, send us feedback about record 152876. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://usgatero.msu.edu/v08/n14.pdf
Last checked: 07/27/2009
Requires: PDF Reader |
| 
MSU catalog number: b3952822a |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
