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| Web URL(s): | https://stri.lib.msu.edu/vol70-1994/pdf/sptri94070142.pdf#page=6
Last checked: 08/30/2006
Requires: PDF Reader
Notes: Available to TGIF and STRI users
https://stri.lib.msu.edu/vol70-1994/sptri94070142.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: | Which 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. 70, 1994, p. 147-148. |
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| Publishing Information: | Bingley, West Yorkshire, UK: The Sports Turf Research Institute |
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| # of Pages: | 2 |
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| Question: | "We are a group of keen, but inexperienced committee men, who carry out all of the work at our lawn tennis club. As a consequence, we are being led by the nose by the friendly representative from a local fertiliser supplier who has taken samples for analysis and reported back with results, which we do not understand and a programme of fertiliser applications which will be very costly and time-consuming to apply. He has recommended applying three feeds of a spring/summer 14:2:4 followed by an autumn/ =winter feed 4:4:8, on the basis that the phosphate and potash levels are low, a figure of Index 1 is quoted. He also suggests we lime the courts as the pH is 5.8. What do these figures mean and should we follow this advice?" |
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| Answer/Response: | "Soil chemical analysis shows whether or not there are deficiencies of phosphorus (P), potassium (K) and other plant nutrients. In addition, the soils acidity/alkalinity can be ascertained from its pH value. However, it is important that the values for these analyses are interpreted properly and interpretation depends on the system of analysis used. In your situation the soil has almost certainly been analysed by the methods used by Agricultural Development and Advisory Services (ADAS). The values obtained for phosphorus and potassium are in ADAS Index I and so are relatively low. It would, therefore, be advisable to apply phosphate and potassium-containing fertiliser in order to increase soil concentrations, particularly as the nutrients are important for turf rooting which is important in lawn tennis. The fertilisers mentioned show the amounts of nitrogen, phosphorus and potassium present, e.g. spring/summer 14:2:4 contains 14% nitrogen, 2% phosphorus (as P2O5) and 4% potassium (as K2O). From this it can be calculated how much nutrient is applied within a dressing. If it is applied at 35 g/m2 (1 oz/yd2) then the amount of nitrogen is 14/100 x 35 = 4.9 g/m2. the amount of phosphorus (as P2O5) is 2/100 x 35 = 0.7 g/m2 and the amount of potassium (as K2O) is 4/100 x 35 = 1.4 g/m2. Three dressings of this material during spring and summer will certainly increase soil phosphorus and potassium concentration to adequate levels. In addition, the amount of nitrogen would be adequate for a lawn tennis court. The autumn/winter feed is not necessary. The pH value of 5.8 within the slightly acidic range. Over-acidity on a lawn tennis court can cause problems with thatch build up, leading to a soft, spongy surface. However, at present the soil in your tennis court is not too acid and the application of neutral top dressing material will reduce any further acidification. The application of lime at this stage could cause problems with disease if the sw contains bentgrasses. It could also lead to the encouragement of worms with surface casting becoming a problem." |
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| Keywords: | TIC Keywords: Fertilization program; Fertilization rates; Fertilizer recommendations; Nutrient concentration; Seasonal 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. 1994. Which fertiliser?. J. Turfgrass Sports Surf. Sci. 70:p. 147-148. |
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| Web URL(s):
https://stri.lib.msu.edu/vol70-1994/pdf/sptri94070142.pdf#page=6
Last checked: 08/30/2006
Requires: PDF Reader
Notes: Available to TGIF and STRI users
https://stri.lib.msu.edu/vol70-1994/sptri94070142.html
Last checked: 09/18/2006
Notes: Available to TGIF and STRI users |
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MSU catalog number: SB 433 .A1 S63 |
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