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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/pdfs/68/4/AJ0680040556
Last checked: 12/09/2016
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| Publication Type:
| Refereed |
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| Author(s): | Terman, G. L.;
Noggle, J. C.;
Hunt, C. M. |
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| Author Affiliation: | Terman and Noggle: Agronomists; Hunt: Research Associate, Soils and Fertilizer Research Branch, National Fertilizer Development Center, Tenneesse Vally Authority, Muscle Shoals, Alabama |
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| Title: | Nitrate-N and total N concentration relationships in several plant species |
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| Source: | Agronomy Journal. Vol. 68, No. 4, July/August 1976, p. 556-560. |
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| Publishing Information: | Madison, WI: American Society of Agronomy |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Zea mays; Spinacia oleracea; Nitrogen; Chemical composition; Nitrate nitrogen; Festuca arundinacea; Nitrogen fertilizers; Nitrogen level; Dry Weight; Soil fertility; Nitrogen uptake
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| Geographic Terms: | Alabama |
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| Abstract/Contents: | "Accumulation of NO3-N in plants is important in regard to plant N nutritional status, in the formation of NO2-N toxic to animals and people consuming the plants, and as a producer of lethal gas in silos. This paper describes relationships between NO3-N and total N concentrations in plants grown in several greenhouse pot experiments, as affected largely by response to applied N and by continuing growth. Corn (Zea mays L.) was grown in soil with 200 to 800 mg of N/pot and in nutrient solutions with 2 to 16 ppm of N. Both crops were harvested at 4-day intervals. Spinach (Spinacea oleracea L.) and mustard (Brassica pervirdis L.) were grown in soil with several rates of N, P, and K, and tall rescue (Festuca arundinacea Shreb.) with 1.0 and 2.0 g of N/pot. These experiments conducted on N-deficient soils resulted in marked yield response and higher concentrations of total N and NO3-N with increase in rates of applied N. Concentrations decreased with age, dry matter accumulation, and depletion of N. Total N was higher in leaves than in stems, but the reverse was true for NO3-N. Concentrations of NO3-N started to increase in various crops above minimum total N values of 1.5 to 4.5%, which were highest for leaves, intermediate for leaves + stems, and lowest for stems or petioles. Below these minimum total N values, NO3-N remained near zero (< 0.1%). Discontinuous regression models appear most satisfactory to fit the entire range of the relationships between total and NO3-N. It was concluded that NO3-N concentrations in plants are negligible if the total N was < 1.5% to 4.5%, depending largely on plant part composition, plant species, and N source." |
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| Language: | English |
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| References: | 9 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Terman, G. L., J. C. Noggle, and C. M. Hunt. 1976. Nitrate-N and total N concentration relationships in several plant species. Agron. J. 68(4):p. 556-560. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/pdfs/68/4/AJ0680040556
Last checked: 12/09/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 22 .A45 |
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