Concepedia

J. Willumsen

JW

8

Publications

438

Citations

8

H-Index

1980

Active since

J. Willumsen is an author specializing in agricultural economics, engineering, and nutrient management.

Top concepts

EngineeringAgricultural EconomicsBotanyPlant PhysiologyNutrient ManagementPublic HealthCrop ProtectionPlant NutritionSustainable AgricultureEnvironmental Engineering

Publications per year

1980–2001

8

Publications

8

Composition and taste of tomatoes as affected by increased salinity and different salinity sources

Karen Koefoed Petersen, J. Willumsen, K. Kaack · The Journal of Horticultural Science and Biotechnology · 1998 · 175 citations

Increased Salinity, Nutrition, Engineering +18

Effects of nitrate, ammonium and chloride application on the yield and nitrate content of soil-grown lettuce

Douglas McCall, J. Willumsen · The Journal of Horticultural Science and Biotechnology · 1998 · 68 citations

Chloride Application, Nitrogen Availability, Biogeochemistry +12

Yield and blossom-end rot of tomato as affected by salinity and cation activity ratios in the root zone

J. Willumsen, Karen Koefoed Petersen, K. Kaack · Journal of Horticultural Science · 1996 · 62 citations

Engineering, Botany, Blossom-end Rot +14

Yield and blossom-end rot of tomato as affected by salinity and cation activity ratios in the root zone

J. Willumsen, K. Kaack, Karen Koefoed Petersen · 1996 · 45 citations

Engineering, Botany, Blossom-end Rot +10

Effects of nitrogen availability and supplementary light on the nitrate content of soil-grown lettuce

Douglas McCall, J. Willumsen · The Journal of Horticultural Science and Biotechnology · 1999 · 35 citations

Nitrogen Availability, Engineering, Botany +13

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