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| Web URL(s): | https://stri.lib.msu.edu/vol67-1991/pdf/sptri91067168.pdf#page=6
Last checked: 08/30/2006
Requires: PDF Reader
Notes: Available to TGIF and STRI users
https://stri.lib.msu.edu/vol67-1991/sptri91067168.html
Last checked: 09/18/2006
Notes: Available to TGIF and STRI users |
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| Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
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| Publication Type:
| Report |
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| Content Type: | Q & A |
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| Corporate Author(s): | Sports Turf Research Institute |
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| Title: | Phosphate fertiliser |
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| Section: | Enquiries and replies
Other records with the "Enquiries and replies" Section
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| Source: | Journal of the Sports Turf Research Institute. Vol. 67, 1991, p. 173. |
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| Publishing Information: | Bingley, West Yorkshire, UK: The Sports Turf Research Institute |
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| # of Pages: | 1 |
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| Question: | "Reading articles related to the fertilisation of fine turf, our bowling club is worried that we have over applied phosphate in the past. Our green is dominated by annual meadow-grass. Is this due to the high level of phosphate in the soil as indicated in a recent chemical analysis?" |
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| Answer/Response: | "Very high levels of phosphate can encourage annual meadow-grass ingress hut other factors, particularly poor drainage are more important. Phosphate influences root structure but is slow to wash (leach) through the profile, so if applied at the surface will stay there possibly promoting shallow rooting, favouring annual meadow-grass. In your case high phosphate is likely to be a contributing factor to annual meadow-grass dominance but severe compaction leading to thatch production and poor surface drainage can also be the primary cause. The high level of phosphate would indicate general over fertilising in the past. A lack of scarification and aeration over the years, essential for thatch regulation will not have helped. Compaction may have resulted through inadequate aeration to compensate for play and maintenance traffic. It is the compacted soil profile which has led to very slow drainage, this in turn gives prolonged periods of anaerobic conditions in the thatch and topsoil. Such unhealthy growing conditions encourage thatch build up and shallow rooting and may well have been the initiating factors behind the increase in the proportion of annual meadow-grass to its current level of domination. The intensity of compaction means that routine slit-tine aeration will not he enough and a combination of hollow tining to reduce thatch and additional work with a Verti-Drain or similar to relieve deep seated compaction must be Seen as complementary treatments to regular winter slitting for the next 2-3 years. Only when appropriate growing conditions for the desirable fine bent and fescue grasses are restored will you be able to reduce the degree of annual meadow-grass contamination. In the meantime apply no more phosphate in the fertiliser programme, in 10 years or so the phosphate level may have fallen to an acceptable level although this can only be gauged by further chemical analysis." |
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| Keywords: | TIC Keywords: Bowling greens; Compaction; Fertilization rates; Phosphorus fertilizers; Poa annua control; Recommendations; Sports turf maintenance
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| Language: | English |
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| References: | 0 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Sports Turf Research Institute. 1991. Phosphate fertiliser. J. Turfgrass Sports Surf. Sci. 67:p. 173. |
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| Web URL(s):
https://stri.lib.msu.edu/vol67-1991/pdf/sptri91067168.pdf#page=6
Last checked: 08/30/2006
Requires: PDF Reader
Notes: Available to TGIF and STRI users
https://stri.lib.msu.edu/vol67-1991/sptri91067168.html
Last checked: 09/18/2006
Notes: Available to TGIF and STRI users |
| 
MSU catalog number: SB 433 .A1 S63 |
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