The disposal of radionuclide wastes to the subsurface environment at Hanford Site has led us to environmental anxiety. It is not only liquid and gas phases that are responsible for contaminant transport in subsurface media, ...

Nutrient cycling is an important matter in all crop production but it is particularly important in oilseed production. The efficiency by which oilseed crops can be grown and the impact of their cultivation dictates the ...

Smallholder farmers in southeastern Africa are constrained by poor rainwater-use efficiency, soil degradation, and limited financial resources. Conservation agriculture (CA), based on the principles of minimal soil ...

New methods are required to rapidly and accurately measure soil C at field- and landscape-scales to improve local, regional, and global soil C stock and flux estimates. This research evaluated visible-near infrared diffuse ...

Volatile crop prices and desire for sustainability have farmers considering alternative practices to increase revenue diversity and protect soil health. Organic management is a rapidly expanding alternative to conventional ...

Physical and chemical heterogeneities are inherent in subsurface environments due to varying: mineralogy, pore geometry, solution saturation, and solute concentration. The goals of this research were to study the heterogeneities ...

At the Hanford Site, radioactive wastes have been disposed into the subsurface. These radionuclides move with infiltrating water both in solution and via adsorption on mobile colloidal soil particles. Extensive research ...

Regulated deficit irrigation (RDI) is a management technique used in wine grape (Vitis vinifera L.) production to control vegetative growth and improve fruit quality. However, the severity of the deficit imposed varies ...

Continual application of ammoniacal sources of nitrogen fertilizer can result in decreased bulk soil pH. Many soils of the Columbia Basin (CB), Washington State are weakly buffered and therefore susceptible to acidification. ...

The global trends of simplifying cropping systems and segregating livestock from cropping enterprises have generated high yields while exacerbating environmental problems globally. To examine the potential for organic and ...