Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Daniel T. Walters"'
Publikováno v:
Field Crops Research. 118:158-168
Generic, robust models are needed for estimating crop nutrient uptake requirements. We quantified and modeled grain yield–nutrient uptake relations in maize grown without significant biotic and abiotic stresses. Grain yield and plant nutrient accum
Autor:
Daniel T. Walters, Achim Dobermann, Albert Weiss, Fernando Salvagiotti, Kenneth G. Cassman, James E. Specht
Publikováno v:
Agronomy Journal. 101:958-970
In high-yielding soybean [Glycine max (L.) Merr.] environments, N uptake during seed-filling may be constrained when the late-season decline in biological nitrogen fixation (BNF) is coupled with insufficient soil N. Three N-fertilization strategies w
Autor:
Daniel T. Walters, Gary W. Hergert, Charles S. Wortmann, Achim Dobermann, Richard B. Ferguson, Charles A. Shapiro, David D. Tarkalson
Publikováno v:
Agronomy Journal. 101:546-555
Nutrient management recommendations may change as yield levels and efficiency of crop production increase. Recommendations for P, K, and S were evaluated using results from 34 irrigated corn (Zea mays L.) trials conducted in diverse situations across
Autor:
Michelle L. Haddix, Daniel T. Walters, Achim Dobermann, M. A. A. Adviento-Borbe, Darren L. Binder
Publikováno v:
Global Change Biology. 13:1972-1988
Crop intensification is often thought to increase greenhouse gas (GHG) emissions, but studies in which crop management is optimized to exploit crop yield potential are rare. We conducted a field study in eastern Nebraska, USA to quantify GHG emission
Publikováno v:
Annual Review of Environment and Resources. 28:315-358
Agriculture is a resource-intensive enterprise. The manner in which food production systems utilize resources has a large influence on environmental quality. To evaluate prospects for conserving natural resources while meeting increased demand for ce
Publikováno v:
Agriculture, Ecosystems & Environment. 80:113-120
Crop performance in rainfed cropping systems generally is dependent on rainfall amount and distribution. The objective of this study was to analyze the long-term consequences of rainfall expressed as a standardized precipitation index (SPI) and ferti