Geospatial modeling of conservation tillage and nitrogen timing effects on yield and soil properties von Liben, F.M., Wortmann, C.S., Tirfessa, A.

Volltext

Crop model and weather data generation evaluation for conservation agriculture in Ethiopia von Liben, F.M., Wortmann, C.S., Yang, H., Lindquist, J.L., Tadesse, T., Wegary, D.

Volltext

Dryland Performance of Sweet Sorghum and Grain Crops for Biofuel in Nebraska von Wortmann, C.S, Liska, A.J, Ferguson, R.B, Lyon, D.J, Klein, R.N, Dweikat, I

Volltext

Corn Response to Nitrogen Rate, Row Spacing, and Plant Density in Eastern Nebraska von Shapiro, C.A, Wortmann, C.S

Volltext

Maize–Bean Intercrop Weed Suppression and Profitability in Southern Ethiopia von Workayehu, T, Wortmann, C.S

Volltext

One-Time Tillage of No-Till Crop Land Five Years Post-Tillage von Wortmann, C.S, Drijber, R.A, Franti, T.G

Volltext

Nitrogen Use Efficiency of Irrigated Corn for Three Cropping Systems in Nebraska von Wortmann, C.S, Tarkalson, D.D, Shapiro, C.A, Dobermann, A.R, Ferguson, R.B, Hergert, G.W, Walters, D

Volltext

Soil Microbial Community Change and Recovery after One-Time Tillage of Continuous No-Till von Wortmann, C.S, Quincke, J.A, Drijber, R.A, Mamo, M, Franti, T

Volltext

Occasional Tillage of No-Till Systems: Carbon Dioxide Flux and Changes in Total and Labile Soil Organic Carbon von Quincke, J.A, Wortmann, C.S, Mamo, M, Franti, T, Drijber, R.A

Volltext

One-Time Tillage of No-Till Systems: Soil Physical Properties, Phosphorus Runoff, and Crop Yield von Quincke, J.A, Wortmann, C.S, Mamo, M, Franti, T, Drijber, R.A, Garcia, J.P

Volltext

Nitrogen Response and Economics for Irrigated Corn in Nebraska von Dobermann, A, Wortmann, C.S, Ferguson, R.B, Hergert, G.W, Shapiro, C.A, Tarkalson, D.D, Walters, D.T

Volltext

Residual Effects of Compost and Plowing on Phosphorus and Sediment in Runoff von Wortmann, C.S, Walters, D.T

Volltext

Phosphorus runoff during four years following composted manure application von Wortmann, C.S, Walters, D.T

Volltext

Micro-basin tillage for grain sorghum production in semiarid areas of northern Ethiopia von Brhane, G, Wortmann, C.S, Mamo, M, Gebrekidan, H, Belay, A

Volltext

Nitrogen Response of Grain Sorghum in Rotation with Soybean von Wortmann, C.S, Mamo, M, Dobermann, A

Volltext

Maize-common bean/lupine intercrop productivity and profitability in maize-based cropping system of Northwestern Ethiopia von Assefa, Alemayehu, Tana, Tamado, Dechassa, Nigusie, Dessalgn, Yigzaw, Tesfaye, Kinde, Wortmann, C.S.

Volltext

Low Input Approaches for Soil Fertility Management in Semiarid Eastern Uganda von Kaizzi, K.C, Byalebeka, J, Wortmann, C.S, Mamo, M

Volltext

Nutrient balances and expected effects of alternative practices in farming systems of Uganda von Wortmann, C.S, Kaizzi, C.K

Volltext

No-till row crop response to starter fertilizer in eastern Nebraska. I. Irrigated and rainfed corn von Wortmann, C.S, Xerinda, S.A, Mamo, M, Shapiro, C.A

Volltext

Tie-Ridge Tillage for High Altitude Pulse Production in Northern Ethiopia von Tesfahunegn, G.B, Wortmann, C.S

Volltext