Skip to main content

Extension

Filter by
Fact Sheet
Importance of Soil Sample Handling for Accurate Soil Nitrogen Testing

Learn how improper soil sample handling can alter test results, especially nitrogen levels, and shows how using proper storage conditions and permeable bags helps ensure accurate data, better fertilizer decisions and protected crop yields.

SoilSoil TestingFertilization
Fact Sheet
Acidifying Lawns and Garden Soils in Oklahoma

Explains why soil pH matters, causes of alkaline soils and how elemental sulfur and aluminum sulfate can safely lower soil pH in lawns and gardens.

SoilSoil Health And Fertility
Fact Sheet
Fire Effects: Soil Erosion

Learn more how fire affects soil erosion on Great Plains rangelands. Learn how wind and water move soil after burns, what research shows about risk and why native grasses help limit long-term damage.

Rangeland ManagementPrescribed FireWeather And Disaster PreparednessWildfiresWildfire RecoverySoilSoil Erosion
Fact Sheet
Estimating Soil Organic Carbon Stocks in Fixed Depth and Fixed Mass of Soil

Learn more how to estimate soil organic carbon stocks using fixed depth and fixed mass methods. Learn key steps, differences and how each approach affects accuracy when tracking soil health and carbon changes.

SoilSoil ConservationSoil TestingFertilization
Fact Sheet
Bulk Density Estimates with Different Soil Sampling Probes, Soil Textures and Soil Moisture Conditions

By Sumit Sharma, Jason Warren, Tyson Ochsner and Cole Diggins. Soil Bulk Density is an important soil physical property used to estimate mineral stocks such as organic carbon and plant nutrients in the soil. Bulk Density is also used in determining

Soil MoistureSoil
Fact Sheet
Cool Season Forage and Hay Quality Result Summary (2019-2024)

By Brian Arnall. Learn about the range of results for samples submitted under the SWFAL crop codes 1 (Wheat), 9 (Fescue and Cool Season Grasses), and 11 (Rye Grass). Armed with the knowledge of the results of samples sent to SWFAL, make more

ForageHayPastures And ForageSoil
Fact Sheet
Regenerative Agriculture: An Introduction and Overview

By David Lalman, Amanda De Oliveira Silva, Brian Arnall, Dana Zook, Jason Warren, Julia Laughlin, Kevin Wagner, Laura Goodman, Paul Beck and Lyndall Stout. Learn the definitions for the regenerative agriculture concept, describe foundational

Backyard PoultryBeef CattleCropsForest Ecology Management And CareForestryGrazing ManagementLivestockPoultryRangeland ManagementRegenerationSoil Health And FertilitySoil
Fact Sheet
Basics of Soil Bulk Density

By Sumit Sharma and Jason Warren. Learn about soil bulk density, its relation with soil depth, soil porosity, organic matter, and particle density. The fact sheet also highlights importance of bulk density for crop production as well as its

Soil CompactionSoil