Full TGIF Record # 3322
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Web URL(s):https://dl.sciencesocieties.org/publications/sssaj/pdfs/44/3/SS0440030545
    Last checked: 12/07/2016
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Publication Type:
i
Refereed
Author(s):Power, J. F.
Author Affiliation:Research Soil Scientist, SEA-AR, USDA, Univ. of Nebraska, Lincoln, NE
Title:Plant growth and water use
Article Series:Response of semiarid grassland sites to nitrogen fertilization, part 1
Section:Soil fertility and plant nutrition
Other records with the "Soil fertility and plant nutrition" Section
Source:Soil Science Society of America Journal. Vol. 44, No. 3, May/June 1980, p. 545-550.
Publishing Information:Madison, WI: Soil Science Society of America
# of Pages:6
Related Web URL:https://dl.sciencesocieties.org/publications/sssaj/abstracts/44/3/SS0440030545
    Last checked: 12/07/2016
    Notes: Abstract only
Keywords:TIC Keywords: Nitrogen; Grasslands; Bromus inermis; Agropyron desertorum; Fertilizers; Water
Geographic Terms:North Dakota
Abstract/Contents:"Although it has been repeatedly demonstrated that most perennial grassland ecosystems respond to N fertilization, knowledge of factors controlling N transformations involved in such responses is fragmentary. Eight rate-of-N-fertilizer experiments were conducted for 5 or 6 years on established perennial grass sites near Mandan, North Dakota. Experiments were conducted within essentially the same precipitation and temperature regimes on sites differing in soil type, exposure, and grass species to determine their influence on N response. Above-ground vegetation response to N fertilization depended primarily upon species - smooth bromegrass (Bromus inermis) was generally more responsive than crested wheatgrass (Agropyron desertorum) or native mixed prairie. No consistent patterns of root biomass response to N fertilization were obvious. At some sites or in certain years root biomass responses were fairly consistent, whereas at other sites or in other years, little response to N occurred. Water use efficiency (WUE) was greatest for bromegrass and least for native grasses, and was generally increased by N fertilization. WUE increased as aboveground growth increased, whether as a result of N fertilization or because of less evaporation at more protected sites. Cumulative dry matter response to N fertilization was highly correlated with cumulative fertilizer N added, with a different curvilinear relationships for each site. These results indicated that the magnitude of fertilizer N responses by perennial grasslands is site specific. Although the same general mechanisms seem to operate at the different sites, magnitude of response was controlled by the plant species present and by some soil type × location factors that are presently ill-defined. These latter factors appear to influence the capacity of the soil to immobilize fertilizer N, capability of above-ground plant growth to take up fertilizer N, and many other N transformations, and may be related to relative availability of water. Consequently interpretations of fertilizer experiments conducted on only one soil type or with only one species must be interpreted with caution."
Language:English
References:15
See Also:See also part 2 Fertilizer recovery" Soil Science Society of America Journal, 44 (3) May/June 1980, p. 550-555, R=3321. R=3321
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Power, J. F. 1980. Plant growth and water use. Soil Sci. Soc. Am. J. 44(3):p. 545-550.
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https://dl.sciencesocieties.org/publications/sssaj/pdfs/44/3/SS0440030545
    Last checked: 12/07/2016
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: S 590 .S65
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