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| Web URL(s): | https://gsrpdf.lib.msu.edu/?file=/1960s/1962/621129.pdf#page=3
Last checked: 01/24/2017
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Notes: Item is within a single large file |
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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: | [Nitrogen deficiency] |
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| Section: | Questions frequently asked
Other records with the "Questions frequently asked" Section
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| Source: | USGA Journal and Turf Management. November 1962, p. 31-32. |
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| Publishing Information: | New York: United States Golf Association |
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| # of Pages: | 2 |
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| Question: | "Why does young grass in many greens show a nitrogen deficiency even when greater rates of N are applied than normally required?" |
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| Answer/Response: | "In most instances when this occurs, raw or readily decomposable organic matter was used in the mixture. For the most part, organic matter breakdown is dependent upon soil microbes. While their growth responds to temperature changes, they, like the grass, require nutrients for growth; and when an organic material is available, they seem to prosper. Inasmuch as the bodies of the microbes are rich in proteins (which are about 6.25 percent nitrogen), much of the nitrogen in the soil is tied up in their godies [bodies] as they grow. The microbes consume the available substrate (the rough organic in this case) until their population becomes too great for it too support. At that point, death of the older and weaker of the microbes begins to occur until an equilibrium in population is established. It is during the period prior to the establishing of the equilibrium that the deficiency develops; during this time supplemental applications of an inorganic and readily available source of nitrogen are warranted. While much nitrogen can be tied up in proteins and complex nucleoproteins, later it will become available for turf consumption as those complex compounds are broken down, as described above, and also through chemical decomposition. The deficiency should not cause alarm but should be expected and its management planned when such sources of organic matter are utilized. It is for this same reason that farmers must fertilize more after a cover crop than when no cover crop was plowed in prior to planting." |
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| Keywords: | TIC Keywords: Nitrogen deficiency; Fertilization rates; Organic matter; Soil microorganisms; Nitrogen fertilization
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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. 1962. [Nitrogen deficiency]. USGA J. Turf Manage. p. 31-32. |
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| Web URL(s):
https://gsrpdf.lib.msu.edu/?file=/1960s/1962/621129.pdf#page=3
Last checked: 01/24/2017
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 433.15 .U84 |
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