A. E. Ludwick

Grain Protein Content as an Indicator of N Sufficiency for Winter Wheat¹

R. J. Goos, D. G. Westfall, A. E. Ludwick et al. · Agronomy Journal · 1982 · 69 citations

Nutrition, Protein Content, Crop Production +15

Phosphorus and Potassium Fertilization of Irrigated Alfalfa on Calcareous Soils: II. Soil Phosphorus Solubility Relationships

P. E. Fixen, A. E. Ludwick, S. R. Olsen · Soil Science Society of America Journal · 1983 · 65 citations

Environmental Chemistry, Biogeochemistry, Monocalcium Phosphate Potentials +15

Sampling Distribution of Nitrates in Irrigated Fields¹

J. O. Reuss, P. N. Soltanpour, A. E. Ludwick · Agronomy Journal · 1977 · 39 citations

Environmental Monitoring, Engineering, Land Use +16

Soil Nitrates Following Four Years Continuous Corn and as Surveyed in Irrigated Farm Fields of Central and Eastern Colorado

A. E. Ludwick, J. O. Reuss, E. J. Langin · Journal of Environmental Quality · 1976 · 28 citations

Engineering, Land Use, Agricultural Economics +17

Residual Available Phosphorus in Near‐Neutral and Alkaline Soils: I. Solubility and Capacity Relationships

P. E. Fixen, A. E. Ludwick · Soil Science Society of America Journal · 1982 · 22 citations

Engineering, Soil Amelioration, Agricultural Economics +18