Gerard L. Velthof mainly investigates Agronomy, Nitrous oxide, Denitrification, Agriculture and Soil water. His research brings together the fields of Biofuel and Agronomy. Gerard L. Velthof interconnects Tillage, Animal waste, Greenhouse gas, Anaerobic digestion and Nitrate in the investigation of issues within Nitrous oxide.
In his study, Inorganic chemistry, Aerobic denitrification and Environmental chemistry is strongly linked to Nitrification, which falls under the umbrella field of Denitrification. The various areas that Gerard L. Velthof examines in his Agriculture study include Food chain, Food processing, Environmental impact assessment and Crop. The concepts of his Soil water study are interwoven with issues in Crop residue and Water content.
Gerard L. Velthof focuses on Agronomy, Manure, Fertilizer, Agriculture and Soil water. His research in Agronomy intersects with topics in Soil classification, Nitrous oxide, Nitrate and Leaching. His Nitrous oxide research is multidisciplinary, relying on both Grazing and Greenhouse gas.
Gerard L. Velthof has included themes like Slurry, Environmental engineering, Nutrient and Livestock in his Manure study. The Fertilizer study which covers Denitrification that intersects with Nitrification, Ammonia volatilization from urea and Environmental chemistry. His research in the fields of Nutrient management overlaps with other disciplines such as Business.
Manure, Agriculture, Fertilizer, Nutrient and Greenhouse gas are his primary areas of study. The Manure study combines topics in areas such as Environmental chemistry, Crop residue, Environmental engineering and Compost. His biological study spans a wide range of topics, including Water quality and Natural resource economics.
Fertilizer is a subfield of Agronomy that Gerard L. Velthof studies. His study in the field of Manure management is also linked to topics like Context. His Nitrate research incorporates themes from Soil water, Leaching and Irrigation.
His primary areas of investigation include Greenhouse gas, China, Soil water, Agronomy and Fertilizer. Many of his research projects under Greenhouse gas are closely connected to Greenhouse effect with Greenhouse effect, tying the diverse disciplines of science together. His study focuses on the intersection of China and fields such as Land use with connections in the field of Agricultural science.
His research integrates issues of Surface irrigation, Crop yield and Crop in his study of Soil water. He combines subjects such as Soil horizon, Nitrate, Leaching and Groundwater with his study of Agronomy. As part of the same scientific family, Gerard L. Velthof usually focuses on Soil pH, concentrating on Manure and intersecting with Environmental impact assessment, Anaerobic digestion and Outreach.
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Role of nitrifier denitrification in the production of nitrous oxide
N Wrage;G.L Velthof;M.L van Beusichem;O Oenema.
Soil Biology & Biochemistry (2001)
Towards an agronomic assessment of N2O emissions: a case study for arable crops
J. W. Van Groenigen;G. L. Velthof;O. Oenema;K. J. Van Groenigen.
European Journal of Soil Science (2010)
Trends in Global Nitrous Oxide Emissions from Animal Production Systems
O. Oenema;N. Wrage;N. Wrage;G.L. Velthof;J.W. van Groenigen.
Nutrient Cycling in Agroecosystems (2005)
Nitrous oxide emissions from grazed grassland.
O. Oenema;G. L. Velthof;S. Yamulki;S. C. Jarvis.
Soil Use and Management (1997)
Nitrous oxide emission from animal manures applied to soil under controlled conditions
Gerard L. Velthof;Peter J. Kuikman;Oene Oenema.
Biology and Fertility of Soils (2003)
Integrated assessment of nitrogen losses from agriculture in EU-27 using MITERRA-EUROPE.
G.L. Velthof;D.A. Oudendag;H.P. Witzke;W.A.H. Asman.
Journal of Environmental Quality (2009)
Nutrient losses from manure management in the European Union
Oene Oenema;Diti Oudendag;Gerard L. Velthof.
Livestock Science (2007)
Nitrous oxide emission from soils amended with crop residues
Gerard L. Velthof;Peter J. Kuikman;Oene Oenema.
Nutrient Cycling in Agroecosystems (2002)
Integrated assessment of promising measures to decrease nitrogen losses from agriculture in EU-27
O. Oenema;H.P. Witzke;Z. Klimont;J.P. Lesschen.
Agriculture, Ecosystems & Environment (2009)
Seasonal variations in nitrous oxide losses from managed grasslands in The Netherlands
G. L. Velthof;A. B. Brader;O. Oenema.
Plant and Soil (1996)
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