Predicting Manure Nitrogen and Phosphorus Characteristics of Beef Open Lot Systems

This project involves the analysis of a new data set for manure characteristics from open lot beef systems demonstrating both average characteristics and factors contribution to variability in manure characteristics among these systems. Defining the characteristics and quantities of harvested manure and runoff from open earthen lot animal systems is critical to planning storage requirements, land requirements for nutrient utilization, land application rates, and logistical issues, such as equipment and labor requirements.

Development and Application of the Newtrient Evaluation Assessment Tool (NEAT):  A Methodology for Comparing Manure Treatment Technologies

The recent development of the Newtrient on-line catalog (www.newtrient.com/Catalog/Technology-Catalog; see accompanying conference proceedings about the catalog) revealed the need to establish a set of environmental and farm operational based critical indicators (CIs).  The indicators are useful in identifying manure treatment technologies that primarily best address dairy farm environmental sustainability but include some social aspects.

Development of a Livestock Siting Assessment Matrix

Growth in the livestock and poultry industries in Nebraska faces hurdles is greatly influenced by county zoning and local decision-making. Variation in policies from one county to the next and in decisions made by county boards creates significant challenges for agricultural operations and for local communities looking to remain vibrant and grow. …

Aeration for Elimination of Manure Odor and Manure Runoff: What One Professional Engineer Has Learned in the Past 12 Years

Aerobic treatment has potential to be more practical for any size operation, reduce odors, reduce risk of runoff by facilitating application to growing crops, and reduce energy use when distributing manure nutrients.

Farm-based aeration, created through an upward/outward surface flow, was first introduced in the 1970’s and brought partial success. …

Development of Short Educational Videos for CAFO Related Topics

Concentrated animal feeding operations (CAFOs) are encountering more resistance. There are cases where citizens file suit to stop application of a new or expansion of animal production facility; others petition the county commissioners to stop the facility via zoning or health ordinances. When extension personnel were asked about CAFOs, it became apparent that some user-friendly and brief information pieces are needed, especially those that are based in fact and able to capture the audience’s attention and address their emotions.…

Spatial and Temporal Soil Nitrogen Distribution After Shallow Disk Manure Injection in Corn

The purpose of this field research was to explore nitrogen (N) distribution in the form of nitrate and ammonium in both a spatial and temporal manner over two seasons in manure injection plots in central Pennsylvania. The description of N movement from high concentration at the manure band through the season can aid in understanding of nutrient migration and utilization efficiencies.