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| DOI: | 10.1080/01904168509363355 |
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| Web URL(s): | http://www.tandfonline.com/doi/pdf/10.1080/01904168509363355
Last checked: 02/23/2018
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Report |
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| Author(s): | Glenn, B. P.;
Ely, D. G.;
Glenn, S.;
Boling, J. A.;
Bush, L. P. |
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| Author Affiliation: | Glenn, B. P.: USDA-ARS, Beltsville Agricultural Research Center, Ruminant Nutrition Laboratory, Beltsville, MD; Glenn, S.: University of Maryland, Dept. of Agronomy, College Park, MD; Glenn, B. P., Ely, Glenn, S., Boling, and Bush: University of Kentucky, Lexington, Kentucky |
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| Title: | Effects of ammonium nitrate and potassium sulfate fertilization on amino acid composition of tall fescue and orchardgrass |
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| Source: | Journal of Plant Nutrition. Vol. 8, No. 5, 1985, p. 405-424. |
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| Publishing Information: | New York, New York: Marcel Dekker, Inc. |
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| # of Pages: | 20 |
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| Related Web URL: | http://www.tandfonline.com/doi/abs/10.1080/01904168509363355
Last checked: 10/31/2013
Notes: Abstract only |
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| Keywords: | TIC Keywords: Amino acid content; Ammonium nitrate; Dactylis glomerata; Fertilizer efficacy; Fertilizer evaluation; Festuca arundinacea; Potassium sulfate; Split applications
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| Abstract/Contents: | "In two experiments tall fescue (TF) and orchardgrass (OG) were fertilized in split applications with 0 or 882 kg NH4NO3/ha and 0 or 833 kg K2SO4/ha to determine the effects on TF and OG amino acid composition. Both free (FAA, unprecipitable in 6% trichloroacetic acid) and hydrolyzable (HAA, hydrolyzed in 6 N HCl at 115 C for 22 hr) amino acid compositions were determined. Data were combined for regression analyses using data for herbage nitrogen (N) and sulfur (S) fractions from the same samples but previously reported (12). Ammonium nitrate fertilization changed herbage amino acid concentrations while K2SO4 fertilization had no effect. The relationship (P<.0001) between herbage total FAA and nonprotein N concentration in herbage was total FAA (μmol/g) = 17.24 ± 2.045 (nonprotein N, mg/g) + 17.37, R2 = .477. Furthermore, free cystine and methionine were linearly related (P<.001) to herbage nonprotein nitrogen content. Linear regression of total HAA (μmol/100 mg protein N) on total N content was significant (P<.002). The cubic equation improved the R2 to .338 and was total HAA (protein N basis) = -3778.7 (total N, mg/g) + 118.5 (total N)2 -1.2 (total N)3. Regression of total HAA content (μmol/g) on protein N content explained .490 of the variation and there was a significant (P<.0001) cubic effect (R2 = .580). Regression coefficients were negative for cystine and methionine concentrations (protein N basis) when regressed on total N content. There were no relationships between hydrolyzable S amino acids (μmol/g) and herbage N or S fractions. Ammonium nitrate fertilization increased (P<.0001) total FAA and total HAA concentrations which were nitrogenous components contributing to increased nonprotein N and protein N fractions, respectively." |
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| Language: | English |
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| References: | 28 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Glenn, B. P., D. G. Ely, S. Glenn, J. A. Boling, and L. P. Bush. 1985. Effects of ammonium nitrate and potassium sulfate fertilization on amino acid composition of tall fescue and orchardgrass. J. Plant Nutr. 8(5):p. 405-424. |
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| DOI: 10.1080/01904168509363355 |
| Web URL(s):
http://www.tandfonline.com/doi/pdf/10.1080/01904168509363355
Last checked: 02/23/2018
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2516613a |
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