Unlocking the secrets of phosphorus in soil management

Oct 18, 2023

Just like humans, plants need nutrients to survive and grow, and many of these nutrients are important compounds found in soil. A University of Saskatchewan (USask) researcher is exploring how phosphorus, an important nutrient for humans and plants, reacts with mineral compounds and how these reactions can impact how well phosphorus is used in soil.

Although phosphorus is required for the growth of plants, USask master’s student Catherine Chavez said it is important to use it efficiently in soil because there is only a finite amount to go around.

“Phosphorus is a required nutrient for all living organisms, and its availability is controlled by adsorption processes,” said Chavez.

Adsorption describes a process where particles of one substance adhere to the surface of another. Her research project is exploring how a wide range of phosphorus compounds react with iron oxide minerals.

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Video: Understanding the Basics of the Renewable Fuel Standard

On Friday, April 24, 2026, from 12 noon–1:00 ET, the Penn State Center for Agricultural and Shale Law, alongside the Pennsylvania Department of Agriculture’s (PDA) Agricultural Business Development Center (ABDC), presented this webinar in the Understanding Agricultural Law Educational Series, a course designed to develop subject matter literacy and competence on fundamental issues of agricultural law for attorneys and business advisors who work with or represent agricultural or rural clients but may not necessarily specialize in agricultural law:

“Understanding the Basics of the Renewable Fuel Standard”

The Clean Air Act’s Renewable Fuel Standard (RFS) program requires transportation fuel sold in the United States to contain a minimum volume of renewable fuels such as ethanol, biodiesel, or advanced biofuels. Established by the Energy Policy Act of 2005 and later expanded by the Energy Independence and Security Act of 2007, the RFS is implemented by the U.S. Environmental Protection Agency (EPA) in collaboration with the Department of Energy and the U.S. Department of Agriculture (USDA).

This webinar provides an overview of the legal authority and structure for the RFS program and explain how it works, including the program’s system of Renewable Identification Numbers (RINs) and categories of renewable fuels. Additionally, this webinar addresses EPA annual volume requirement rulemaking and associated recent legal issues.