Pacific Northwest

The nitrogen industry seeks to reduce its carbon footprint. Photo courtesy of The Fertilizer Institute.

Climate-smart fertilizers in 4R nutrient stewardship

April 15, 2022

Photo by Jagdeep Singh.

Toward solving the nitrogen mineralization puzzle

April 15, 2022

Depth-wise stratification sampling using tractor-mounted probe.

Moldboard plowing in wheat–fallow systems of the Pacific Northwest: Effect on yields, organic matter

April 15, 2022

Juan Manuel Osorio-Hernandez of Toluca, Mexico was named this year's CCA of the Year.

Osorio-Hernandez named 2022 ICCA of the Year

April 4, 2022

newly certified

Newly certified

April 4, 2022

Grass cover crop in corn. Photo by David Lamm/Soil Health Institute.

Economics of soil health: Contributions of reduced tillage and cover cropping

April 4, 2022

In flooded rice, biological nutrient cycling releases methane, a greenhouse gas. Photo courtesy of Flickr/formulanone.

Environmental outcomes from on-farm agricultural production in the United States

April 4, 2022

Figure 1. State-level phosphorus balance for the 2016 crop year compared with median soil test phosphorus in 2020. Surpluses can be appropriate for low-testing soils, and conversely deficits for high-testing soils. In some instances, for example the state of Maine, the surplus may be driven by the high phosphorus needs of a particular crop, in this case, potatoes. Data from NuGIS (TFI, 2021a) and Soil Test Summary (TFI, 2021b); states with fewer than 10,000 soil test samples were excluded.

Evaluating impacts of 4R nutrient stewardship

February 17, 2022

Wayne Fredericks, co-author of this article, has been farming fields in Mitchell County, IA near Osage since the mid-1970s. Using his experiences as a backdrop, this article focuses on what actually happens in the soil along the journey of change in corn and soybean systems. Photo by Joseph L. Murphy/Iowa Soybean Association.

Changes in soils and crops along a transformational journey

February 16, 2022

Isaac Wolford, CCA from Lewisburg, WV, is the new vice-chair of the North American CCA Board.

Wolford begins term as vice-chair of the North American CCA Board

February 3, 2022

Certified Crop Adviser Exam Study Tools & Resources

CCA Organic Specialty Certification