; (D) conducting research to better understand how wastewater processing impacts such substances; (E) conducting research to better understand the fate, residence time, and transport of such substances on farmland; and (F) conducting research on how to remediate soil and water systems contaminated with such substances. (20) Agricultural byproducts research Research and extension grants may be made under this section for the purposes of converting agricultural byproducts or forest residuals into valuable materials and products, including innovations in production processes for easily deployable refining facilities, developing alternatives to agricultural burning, and fostering energy production through recycling animal byproducts, wet waste, and plant-based waste. (21) Soil health research Research and extension grants may be made under this section for the purposes of— (A) developing management practices that improve soil health, including establishing tools that aid soil preservation or improve composition of soil organic compounds that are beneficial to soil quality and the environment; and (B) disseminating such practices through methods such as innovative coursework and work-based learning. (22) White oak research Research and extension grants may be made under this section for the purposes of white oak research, including conducting research on— (A) white oak genes with resistance and stress tolerance; (B) white oak trees that exhibit vigor for the purpose of increasing survival and growth; (C) establishing a diverse white oak seed bank capable of responding to stressors; (D) providing a sustainable supply of white oak seedlings and genetic resources; (E) reforestation of white oak through natural and artificial regeneration