Full TGIF Record # 121026
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Web URL(s):https://gsrpdf.lib.msu.edu/?file=/1920s/1929/2906109.pdf#page=4
    Last checked: 01/26/2017
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Publication Type:
i
Professional
Content Type:Q & A
Corporate Author(s):USGA Green Section
Title:Neutralizing the alkalinity of lime in sand used in compost
Section:Questions and answers
Other records with the "Questions and answers" Section
Source:The Bulletin of the United States Golf Association Green Section. Vol. 9, No. 6, June 1929, p. 112-113.
Publishing Information:Washington, DC: USGA Green Section
# of Pages:2
Question:"An analysis of three samples of sand available for use in compost for top-dressing our bent greens shows the lime (oxide of calcium) content to be respectively as follows: 6.52 per cent, 7.82 per cent, and 9.59 per cent. Our compost consists of top soil, sand, and fertilizer. Is the lime content too high in any of these samples? What is the highest percentage of lime in sand that can be safely used on bent turf?"
Source of Question:New York
Answer/Response:"One part of burned lime (oxide of calcium) is equivalent to 1.78 parts of limestone (carbonate of calcium.) The sand containing the lowest percentage of oxide of calcium, 6.52 per cent, therefore carries the alkaline equivalent of 11.6 per cent of limestone. One ton of this sand would accordingly contain the equivalent of 232 pounds of limestone. In case this sand constituted one-third of the material in your compost, one ton of compost would contain 77 1/3 pounds of limestone. It takes about 65 pounds of sulphate of ammonia to neutralize the alkalinity of 100 pounds of limestone. Therefore it would require about 50 pounds of sulphate of ammonia to neutralize the alkalinity of the sand in one ton of your compost, one-third of which was made up of your sand of 6.52 per cent lime. It is doubtful that greens ever receive this quantity of sulphate of ammonia between successive top-dressings, and therefore the continued use of this sand without the addition of sufficient sulphate of ammonia would tend to make the soil of your greens increasingly alkaline."
Keywords:TIC Keywords: Composts; Golf green maintenance; Lime; Recommendations; Soil acidity; Topdressings
Language:English
References:0
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
USGA Green Section. 1929. Neutralizing the alkalinity of lime in sand used in compost. Bull. U.S. Golf Assoc. Green Sec. 9(6):p. 112-113.
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https://gsrpdf.lib.msu.edu/?file=/1920s/1929/2906109.pdf#page=4
    Last checked: 01/26/2017
    Requires: PDF Reader
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