Journal of Japanese Society of Turfgrass Science
Online ISSN : 1884-4022
Print ISSN : 0285-8800
ISSN-L : 0285-8800
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Volume 50, Issue 2
Displaying 1-9 of 9 articles from this issue
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Short Report
  • Physical and chemical properties of school turf
    Yoshiaki Ikemura, Kenichiro Fujisaki, Masayoshi Hatsukade
    2022 Volume 50 Issue 2 Pages 89-97
    Published: March 31, 2022
    Released on J-STAGE: March 31, 2023
    DOIhttps://doi.org/10.11275/turfgrass.50.2_89
    JOURNAL OPEN ACCESS
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    The soil recommendation of physical properties varies for school turf. This research investigated school turf to determine adequate physical and chemical properties. We examined turf quality, soil physical and chemical properties for 10 schools—8 were from Tokyo and 2 were from Shizuoka. The soil particle analysis showed that 2 schools had 25 to 40% of silt and clay, and 8 schools had 5 to 20% of them. These results showed that all the 10 schools had much higher silt and clay content comparing to USGA green recommendation. About chemical properties, all schools had more than adequate levels of K, Ca, Fe, Mn, Zn, and Cu. Correlation analysis showed that turf quality was moderately correlated with soil phosphorous (r=0.78) However, 8 schools had more than adequate phosphorous level, this might be caused by mainly using compound fertilizers such as 8-8-8 and/or 10-10-10 to maintain school turf. Since K was adequate in the soil, we assume that nitrogen was the limiting factor to determine turf quality for school turf. We found in order to maintain school turf properly, regular nitrogen fertilization would be necessary.

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