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DOI: | 10.2134/jeq1973.00472425000200010022x |
Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/2/1/JEQ0020010125 Last checked: 12/08/2016 Requires: PDF Reader Notes: Item is within a limited access website https://dl.sciencesocieties.org/publications/jeq/articles/2/1/JEQ0020010125 Last checked: 12/08/2016 Notes: Item is within a limited access website |
Publication Type:
| Refereed |
Author(s): | Matocha, J. E.;
Rouquette, F. M. Jr.;
Duble, R. L. |
Author Affiliation: | Matocha and Rouquette: Assistant Professor, Texas A&M Univ. Agr. Res. & Ext. Center, Overton; Duble: Assistant Professor, Texas A&M Univ., College Station |
Title: | Recycling and recovery of nitrogen, phosphorus, and potassium by coastal bermudagrass: I. Effect of sources and rates of nitrogen under a clipping system |
Section: | Technical reports Other records with the "Technical reports" Section
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Source: | Journal of Environmental Quality. Vol. 2, No. 1, January-March 1973, p. 125-129. |
Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
# of Pages: | 5 |
Related Web URL: | https://dl.sciencesocieties.org/publications/jeq/abstracts2/1/JEQ0020010125 Last checked: 12/08/2016 Notes: Abstract only |
Keywords: | TIC Keywords: Ammonium sulfate; Application rates; Cynodon dactylon; Nitrogen; Nitrogen recovery; Nutrient cycles; Nutrient recovery; Phosphorus; Potassium
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Abstract/Contents: | "A field experiment was conducted to determine recovery efficiencies for applied N, P, and K under a system of total removal of forage (Cynodon dactylon L. Pers. 'Coastal') over a 3-year period. Ammonium nitrate, (NH2)2CO, and (NH4)2SO4 were each applied in split applications of 0, 280, 560, and 840 kg N/ha each season. Soil levels of total N, chemically extractable P, and K were monitored each season. Results show that N recovery percentages ranged in the following order: (NH4)2SO4>NH4NO3 > (NH2)2CO. Characteristic decreases in recoveries occurred with increasing N rates. Source effects on recovery efficiencies for P were as follows: NH4NO3 (NH4)2SO4 > (NH2)2CO. Average P recovery percentages for NH4NO3 were 34, 46, and 52% for rates of 280, 560, and 840 kg N/ha, respectively. Plant recovery of applied K was greatest for (NH4)2SO4 and lowest for (NH2)2CO. Average values for (NH4)2SO4 were 108, 165, and 222% for the low, medium, and high rates of N, respectively. Ammonium sulfate gave greater accumulation of soil N with time than NH4NO3 or (NH2)2CO while chemically extractable soil P and K were highest for NH4NO3." |
Language: | English |
References: | 17 |
See Also: | See also Part II "Recycling and recovery of nitrogen, phosphorus, and potassium by coastal bermudagrass: II. Under grazing conditions with two stocking rates" Journal of Environmental Quality, 2(1) January-March 1973, p. 129-132, R=160562. R=160562 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Matocha, J. E., F. M. Jr. Rouquette, and R. L. Duble. 1973. Recycling and recovery of nitrogen, phosphorus, and potassium by coastal bermudagrass: I. Effect of sources and rates of nitrogen under a clipping system. J. Environ. Qual. 2(1):p. 125-129. |
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| DOI: 10.2134/jeq1973.00472425000200010022x |
| Web URL(s): https://dl.sciencesocieties.org/publications/jeq/pdfs/2/1/JEQ0020010125 Last checked: 12/08/2016 Requires: PDF Reader Notes: Item is within a limited access website https://dl.sciencesocieties.org/publications/jeq/articles/2/1/JEQ0020010125 Last checked: 12/08/2016 Notes: Item is within a limited access website |
| MSU catalog number: S 900 .J6 |
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