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| Web URL(s): | https://dl.sciencesocieties.org/publications/sssaj/pdfs/52/2/SS0520020429
Last checked: 12/07/2016
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| Publication Type:
| Refereed |
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| Author(s): | Stout, W. L.;
Jung, G. A.;
Shaffer, J. A. |
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| Author Affiliation: | USDA-ARS, U.S. Regional Pasture Research Lab., University Park, PA. |
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| Title: | Effects of Soil and Nitrogen on Water Use Efficiency of Tall Fescue and Switchgrass Under Humid Conditions |
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| Source: | Soil Science Society of America Journal. Vol. 52, No. 2, March/April 1988, p. 429-434. |
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| Publishing Information: | Madison, WIS |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Soils; Nitrogen; Water use; Festuca arundinacea; Panicum virgatum; Semiarid soils; Humidity; Water stress; Water availability
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| Abstract/Contents: | "Nitrogen fertilization of semiarid grasslands interacts with available soil moisture to increase forage yields and water use efficiency of grasses. If interactive effects of water and N can be determined under humid conditions, increased production could be realized on the droughty, hill land pastures of the northeast USA. The objective of this study was to quantify the interactive effects of N fertilization and soil water availability on the yield and water use efficiency of a C3 and a C4 forage grass under humid conditions. Tall fescue and switchgrass were grown on three shale derived soils with available water holding capacities of 25, 15, and 5 cm. The grasses received 0.90 and 180 kg ha-1 of N. The N was applied in a split application of fescue and in one application on switchgrass. Grasses were harvested at early heading and in late fall. Precipitation, temperature, and soil water data were recorded throughout the growing season. During years when precipitation was evenly distributed, N was the main factor controlling yields and water use efficiency, accounting for about 80% of the variation in those two parameters. When most of the precipitation occurred as large storm events or when precipitation was low or poorly distributed, soil water holding capacity was the major factor controlling yield and water use efficiency, accounting for about 40% of the variation in the yields of tall fescue and switchgrass. Over years, water loss due to deep percolation and/or runoff was the most important soil related factor affecting yield and water use efficiency." |
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| Language: | English |
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| References: | 17 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Stout, W. L., G. A. Jung, and J. A. Shaffer. 1988. Effects of Soil and Nitrogen on Water Use Efficiency of Tall Fescue and Switchgrass Under Humid Conditions. Soil Sci. Soc. Am. J. 52(2):p. 429-434. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/sssaj/pdfs/52/2/SS0520020429
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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