The role of four macrophyte species in the removal of nitrogen and phosphorus from nutrient-rich water in a prairie marsh, Iowa

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1983-07-15
Authors
Davis, Craig
Baker, James
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van der Valk, Arnold
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Botany
The Botany Graduate Program offers work for the degrees Master of Science and Doctor of Philosophy with a graduate major in Botany, and minor work for students majoring in other departments or graduate programs. Within the Botany Graduate Major, one of the following areas of specialization may be designated: aquatic and wetland ecology, cytology, ecology, morphology, mycology, physiology and molecular biology, or systematics and evolution. Relevant graduate courses that may be counted toward completion of these degrees are offered by the Departments of EEOB and GDCB, and by other departments and programs. The specific requirements for each student’s course distribution and research activities are set by the Program of Study Committee established for each student individually, and must satisfy all requirements of the Graduate College (See Index). GRE (and if necessary, TOEFL) scores are required of all applicants; students are encouraged to contact faculty prior to application.
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Agricultural and Biosystems Engineering

Since 1905, the Department of Agricultural Engineering, now the Department of Agricultural and Biosystems Engineering (ABE), has been a leader in providing engineering solutions to agricultural problems in the United States and the world. The department’s original mission was to mechanize agriculture. That mission has evolved to encompass a global view of the entire food production system–the wise management of natural resources in the production, processing, storage, handling, and use of food fiber and other biological products.

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In 1905 Agricultural Engineering was recognized as a subdivision of the Department of Agronomy, and in 1907 it was recognized as a unique department. It was renamed the Department of Agricultural and Biosystems Engineering in 1990. The department merged with the Department of Industrial Education and Technology in 2004.

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1905–present

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  • Department of Agricultural Engineering (1907–1990)

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Abstract

Precipitation, runoff, and drainage supplied about 1.5 metric tons of NH4-N, 4.1 metric tons of N03-N, and 0.09 metric tons of P04-P to Eagle Lake in 1976. Shoots of Typha glauca, Carex atherodes, Sparganium eurycarpum, and S cirpus validus had ac­ cumulated 18.0 metric tons of N and 1.8 metric tons of P at peak standing crop in late July. During decomposition, shoots of all four species lost organic matter faster than P, and lost P faster than N. Carex, Typha, and Scirpus litter were more effective in retaining or accumulating N and P than was Sparganium litter.

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This article is published as Davis, C. B., A. G. van der Valk, and J. L. Baker. 1983. The role of four macrophyte species in the removal of nitrogen and phosphorus from nutrient-rich water in a prairie marsh, Iowa. Madrono 30:133-142. Posted with permission.

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Sat Jan 01 00:00:00 UTC 1983
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