Leaching of nitrogen from arable land can lead to pollution groundwater and surface water. Various measures have been implemented in agriculture reduce leaching, but there is still potential do more. To find the best agricultural management regime limit problem, leaching soils under different must be measured. Different methods estimate are available, they not thoroughly evaluated. This study c...

The persistence of the biocontrol agent Pseudomonas fluorescens CHA0 in the surface horizon of 12 large outdoor lysimeters planted with winter wheat, Phacelia tanacetifolia followed by spring wheat, or maize was monitored for 1 year. Soil was inoculated with a spontaneous rifampin-resistant mutant (CHA0-Rif) of CHA0, and the strain was studied by using colony counts, Kogure's direct viable coun...

Drought is common in rangeland environments and an understanding of its impacts on the structure and function of rangeland ecosystems is paramount for developing effective management strategies. This research was the second of a series of studies investigating the impacts of varying seasonal droughts on northern Great Plains rangelands. Research was conducted on native rangeland during the 1998...

Crop model intercomparison studies have mostly focused on the assessment of predictive capabilities for crop development using weather and basic soil data from same location. Still challenging is performance when considering complex interrelations between dynamics under a changing climate. The objective this study was to test agronomic environmental flux-related set models. aim predict weighing...

Glyphosate [N-phosphonomethyl]glycine is a systematic, non-selective, organophosphorus herbicide used worldwide in agriculture and industrial zones. Following its application, residues of glyphosate can threaten soil or aquatic organisms in adjacent water. In this study, we followed the degradation, stabilization, remobilization and leaching of C-glyphosate in three agricultural soils in labora...