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Calcium-, Phosphor- und Magnesium-Kreisläufe in einem ökologisch wirtschaftenden Landwirtschaftsbetrieb
Walter, Jürgen - 1990
Persistent link: https://www.econbiz.de/10004095839
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The fertilizers effect on the dynamics of trace elements content in soil when growing a table beet
Bykin, A.; Kostyuchenko, M. - In: Balanced Nature Using 5 (2013) 2-3, pp. 52-56
provided. It is shown that the highest content of nitrogen, phosphorus and potassium application has been provided with the …
Persistent link: https://www.econbiz.de/10011086544
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FAO fertilizer and plant nutrition bulletin
FAO - Rome : FAO - Nr. 1.1979 -
Persistent link: https://www.econbiz.de/10000435780
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Erwartungen und Verhalten der Landwirte im Dünge- und Futtermittelgeschäft
Bakonyi, Emmerich - 1989
Persistent link: https://www.econbiz.de/10004736660
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Nachfrageanalyse des EG-Düngemittelmarktes
Unger, Helmut - 1984
Persistent link: https://www.econbiz.de/10004743222
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Eine Untersuchung zur Ausgestaltung des Düngemitteleinkaufs und -einsatzes von Marktfruchtbaubetrieben
Velder, Barbara - 1996
Persistent link: https://www.econbiz.de/10004699190
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A General Water Protection Plan of Lake Onega in Russia
Bilaletdin, Ämer; Frisk, Tom; Podsechin, Victor; … - In: Water Resources Management 25 (2011) 12, pp. 2919-2930
Lake Onega is the second largest lake in Europe after Lake Ladoga. This paper is a part of the project concerning a general plan of water protection, as expressed in the Water Framework Directive. The aim of this paper was to present an investigation of the status of Lake Onega and to present...
Persistent link: https://www.econbiz.de/10010997631
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Diffuse Surface Water Pollution: Driving Factors for Different Geoclimatic Regions
Panagopoulos, Yiannis; Makropoulos, Christos; Mimikou, Maria - In: Water Resources Management 25 (2011) 14, pp. 3635-3660
The quantification of point and non-point losses of Nitrogen (N) and Phosphorus (P) to surface waters is currently a …
Persistent link: https://www.econbiz.de/10010997939
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Spatially Explicit Modeling of Land Use Specific Phosphorus Transport Pathways to Improve TMDL Load Estimates and Implementation Planning
Gaddis, Erica; Voinov, Alexey - In: Water Resources Management 24 (2010) 8, pp. 1621-1644
. Albans Bay, Vermont to model the relative load of phosphorus from all sources, including diffuse transport pathways, and … compared to goals and assumptions outlined by a Total Maximum Daily Load (TMDL) developed for phosphorus in Lake Champlain … phosphorus load to streams (10.57 t/year) in terms of space, time, and transport process. The majority of the phosphorus load …
Persistent link: https://www.econbiz.de/10010998131
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Technology characteristics, choice architecture, and farmer knowledge: the case of phytase
Stahlman, Michael; McCann, Laura - In: Agriculture and Human Values 29 (2012) 3, pp. 371-379
Phytase is an enzyme that frees the phosphorus bound in feed grains and thus reduces the amount of dicalcium phosphate …
Persistent link: https://www.econbiz.de/10010849161