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| Web URL(s): | https://gsrpdf.lib.msu.edu/?file=/1930s/1933/330582.pdf#page=1
Last checked: 01/25/2017
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| Publication Type:
| Professional |
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| Content Type: | Q & A |
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| Corporate Author(s): | USGA Green Section |
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| Title: | Improving weedy fairways |
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| Section: | Questions and answers
Other records with the "Questions and answers" Section
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| Source: | The Bulletin of the United States Golf Association Green Section. Vol. 13, No. 3, May 1933, p. 82-83. |
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| Publishing Information: | Washington, DC: USGA Green Section |
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| # of Pages: | 2 |
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| Question: | "Our fairways, which are composed of Acapulco grass, carpet grass, Angelton grass, and Bermuda grass are in poor condition, being invaded by weeds of various kinds. We are sending you samples of what we consider our worst weeds. We wish to eradicate these weeds and to improve the turf. The samples of soil which we are forwarding are from the highland, where the soil is red and pure, and from the lowland, where the soil is rich and dark." |
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| Source of Question: | Cuba |
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| Answer/Response: | "In order to improve your fairways your program would seem to consist of heavy fertilizing and burning the weeds with sulphate of ammonia. The samples of weeds you forward are mostly leguminous plants and hence their control will depend somewhat on the maintenance of an adequate supply of nitrogen in the soil, since leguminous plants generally are subject to control by this method. The sulphate of ammonia can be used as a medium for burning the weeds and hence checking their growth, while the nitrogen from the sulphate of ammonia will remain in the soil for some time and thus increase the growth of the grass. Grasses such Bermuda, Acapulco, and carpet, which have heavy rootstock growth, will not be badly injured by the burning resulting from the use of the sulphate of ammonia. The examination of the sample of your black soil from the lower areas indicates that it contains about 75 pounds of phosphoric acid to the acre, and the red soil from higher areas about 25 pounds to the arce. The black soil has a pH value of 7.5, indicating that it is on the alkaline side, while the red soil runs from 6 to 6.2 in pH values, indicating that it is slightly acid. It appears that there is sufficient potash in both samples, but the black soil contains about twice as much potash as the red soil. We would recommend, therefore, that your program open each year with the burning of the weeds with sulphate of ammonia. This should be done in April. Powdered sulphate of ammonia should be sprinkled by hand over the solid patches of weeds at the rate of from 10 to 15 pounds to 1,000 square feet. This should be done early in the morning when the dew is on the grass or when the grass is wet so that the chemical will stick to the weeds until its effect is produced. Some dealers sell fine forms of sulphate of ammonia free from lumps. A lumpy form could be used, however, if first powdered by rolling. Following the burning of the weeds, heavy applications of some complete mixed fertilizer containing about equal amounts of nitrogen, phosphorus, and potash should be made. The turf should be disked at the time of fertilizing with a straight disk to facilitate the entrance of the mineral elements into the soil. The straight disk would not turn over or injure the existing turf. It would be the best to apply the fertilizer in two applications, one application immediatley after burning the weeds, and followed with another another two or three weeks later, or after a rain coming shortly after the first application. This fertilization should induce a heavy growth of grass during the spring and summer months, and if the fairways could be fertilized again in September or October you should have a continued heavy growth of grass well into the winter. The fall application also should be split in half and made in two applications several weeks apart. By splitting the application there is less likelihood of loss from heavy rains which you sometimes have in Cuba. After the weedy patches hae been burned with sulphate of ammonia, the fairways have been fertilized, and the new growth has begun, if the burned areas are not filling in fast enough, stolons of Acapulco grass or of Bermuda grass should be chopped or disked into those areas in order that they may fill in with grass before the weeds have a chace to be reestablished. In some cases it will be necessary to burn the same patches of weeds several times before the weed is killed out. Burning weedy patches with sulphate of ammonia is an effective treatment and one from which little damage can result to the turf." |
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| Keywords: | TIC Keywords: Ammonium sulfate; Application rates; Control methods; Maintenance scheduling; Nitrogen; Recommendations; Seasonal maintenance; Weed control; Weed invasion
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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):
USGA Green Section. 1933. Improving weedy fairways. Bull. U.S. Golf Assoc. Green Sec. 13(3):p. 82-83. |
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| Web URL(s):
https://gsrpdf.lib.msu.edu/?file=/1930s/1933/330582.pdf#page=1
Last checked: 01/25/2017
Requires: PDF Reader |
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MSU catalog number: SB 433.15 .B85 |
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