Losses, plant uptake and utilisation of manure nitrogen during a production cycle /Author: Kirchmann, H.
Publisher: Stockholm : Scandinavian Association of Agricultural Scientists and the Royal Swedish Academy of Agriculture and Forestry,
Date: 1985. This title can be found in 1 Iowa libraries.
Ten-year results of fertilizing grand fir, western hemlock, western larch, and Douglas-fir with nitrogen in northern Idaho /Author: Graham, Russell T.
Publisher: [Ogden, Utah] : U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station,
Date: 1985. This title can be found in 1 Iowa libraries.
Nitrogen in crop production : proceedings of a symposium held 25-27 May 1982 at Sheffield, Alabama /Publisher: Madison, Wis. : American Society of Agronomy,
Date: 1984. This title can be found in 2 Iowa libraries.
Evaluation of nitrogen and phosphorus enrichment using in situ enclosure bags with temporal indigenous phytoplankton populations /Author: Meyer, Richard Lee,
Publisher: Fayetteville, Ark. : Arkansas Water Resources Research Center, University of Arkansas,
Date: [1984] This title can be found in 1 Iowa libraries.
Effect of the ground-water regime and nitrogen fertilizer on the yield and quality of apples : results of a ground-water level experimental field with the apple varieties golden delicious and cox's orange pippin on a young calcereous marine clayey soil /Author: Visser, J.
Publisher: Lelystad : Ministerie van Verkeer en Waterstaat, Rijksdienst voor de Ijsselmeerpolders,
Date: 1983. This title can be found in 1 Iowa libraries.
Untersuchungen zum Stickstoffhaushalt einiger Pflanzenbestände /Author: Werner, Willy.
Publisher: Göttingen : E. Goltze,
Date: c1983. This title can be found in 1 Iowa libraries.
Crop response to the supply of macronutrients /Author: Keulen, H. van.
Publisher: Wageningen, Netherlands : Centre for Agricultural Publishing and Documentation,
Date: 1982. This title can be found in 1 Iowa libraries.
Actual and potential nitrogen fixation in pea and field bean as affected by combined nitrogen /Author: Mil, Michiel van,
Publisher: [Wageningen? : Landbouwhogeschool te Wageningen?],
Date: 1981. This title can be found in 1 Iowa libraries.
Response of grand fir, western hemlock, western white pine, western larch, and Douglas-fir to nitrogen fertilizer in northern Idaho /Author: Graham, Russell T.
Publisher: Ogden, Utah : USDA Forest Service, Intermountain Forest and Range Experiment Station,
Date: 1979. This title can be found in 1 Iowa libraries.
Stickstoff-Düngungseinflüsse von Intensiv-Grünland auf Streu- und Moorwiesen /Author: Boller-Elmer, Karin Christine.
Publisher: Zürich : Geobotanisches Institut ETH, Stiftung Rübel,
Date: 1977. This title can be found in 1 Iowa libraries.
Evaluations on accelerating wood decomposition in the field /Author: Ward, Franklin R.
Publisher: Portland, Or. : Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture,
Date: [1975] This title can be found in 1 Iowa libraries.
Nitrogen-15 in soil-plant studies; proceedings.Publisher: Vienna, International Atomic Energy Agency,
Date: 1971. This title can be found in 2 Iowa libraries.
Eutrophication in coastal waters: nitrogen as a controlling factorPublisher: Washington [U.S. Environmental Protection Agency]; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Date: 1971. This title can be found in 2 Iowa libraries.
Nitrogen, its effect on transit temperatures and market quality of western lettuce shipped in piggyback trailers /Publisher: Washington, D.C. : Agricultural Research Service, U.S. Dept. of Agriculture,
Date: 1966. This title can be found in 1 Iowa libraries.
Soil nitrogen,Author: Bartholomew, William Victor,
Publisher: Madison, Wis., American Society of Agronomy,
Date: 1965. This title can be found in 2 Iowa libraries.
Der Stickstoff : seine Bedeutung für die Landwirtschaft und die Ernährung der Welt /Publisher: Düsseldorf : Fachverband Stickstoffindustrie,
Date: 1961. This title can be found in 1 Iowa libraries.
Relation of nitrate nitrogen to the carbohydrate and nitrogen content of onions /Author: Wilson, Alma Lavoy,
Publisher: Ithaca, N.Y. : Cornell University,
Date: 1934. This title can be found in 1 Iowa libraries.
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