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Hand-held instruments are used to document conditions and performance of environment in animal facilities [source: E. Fabian]
Evaluating Air Quality in Livestock Housing Environments - Articles Articles
This publication focuses on important aspects of evaluating and troubleshooting farm animal housing environment and ventilation system performance. More
Oats. Photo: E. Swackhamer
Cover Crop Considerations after Small Grain Harvest - Articles Articles

Cover Crop Considerations after Small Grain Harvest

Sjoerd Willem Duiker, Ph.D., CCA

Planting a soil building cover crop after small grain harvest has many benefits, but needs to be tailored to your farm’s needs. More
Paddock with Run-in shed
Horse Farm Design: An Agricultural Engineering Approach - Articles Articles

Horse Farm Design: An Agricultural Engineering Approach

Eileen E. Fabian (Wheeler), Ph.D.

Research-based information for the planning and construction of well-designed equestrian facilities. More
Resources for Ventilation of Livestock Housing
Resources for Ventilation of Livestock Housing - Articles Articles

Resources for Ventilation of Livestock Housing

Eileen E. Fabian (Wheeler), Ph.D.

Information on Ventilation systems available at Penn State More
Overgrazing pastures compromises pasture production and exposes the soil to erosion
Avoid Overgrazing Your Pastures - Articles Articles

Avoid Overgrazing Your Pastures

Justin Brackenrich, Sjoerd Willem Duiker, Ph.D., CCA

The summer is upon us and cool season grasses are slowing down their growth. This is the time to pay attention so you don’t overgraze those pastures. More
Soil erosion is still taking its toll in Pennsylvania but can be addressed by using proper management
Eliminating Soil Erosion - Articles Articles

Eliminating Soil Erosion

Sjoerd Willem Duiker, Ph.D., CCA

Soil erosion is still our number one sustainability issue. With the excessive rainfall we’ve had many fields are showing the scars of rills and gullies. And yet … We have the tools – so let’s put them to work. More
Red Holstein dairy cow
Animal Welfare Objectives for Dairy Facility Design - Articles Articles

Animal Welfare Objectives for Dairy Facility Design

Eileen E. Fabian (Wheeler), Ph.D.

This article provides a simplified context for animal welfare in relation to engineering design features of dairy housing. More
Photo Credit: Sjoerd Duiker, Penn State Extension.
Managing Soil Compaction Caused by Small Grain Silage Harvest - Articles Articles
Small grain silage harvest can cause soil compaction when the soil is wet. This can have negative effects on the following corn crop. More
Hairy vetch, rye, annual ryegrass, and clover cover crop being grazed. Photo Credit: Sjoerd Duiker, Penn State University
Grazing Crop Residues and Cover Crops - Articles Articles

Grazing Crop Residues and Cover Crops

Sjoerd Willem Duiker, Ph.D., CCA

Grazing has been largely excluded from our croplands but is receiving new interest as an additional profit center for farmers as well as a way to improve soil. More
Use Personal Gas Monitors to Avoid Exposure to Toxic Hydrogen Sulfide
Use Personal Gas Monitors to Avoid Exposure to Toxic Hydrogen Sulfide - Articles Articles

Use Personal Gas Monitors to Avoid Exposure to Toxic Hydrogen Sulfide

Dan Hofstetter, Eileen E. Fabian (Wheeler), Ph.D., Michael Pate, Ph.D.

Gas monitoring is always recommended when working around toxic gases such as hydrogen sulfide. Fortunately, affordable portable personal gas monitors are available for on-farm use. More
Photo Credit: Sjoerd Duiker, Penn State Extension.
Repairing Erosion Damage and Protecting Your Fields - Articles Articles

Repairing Erosion Damage and Protecting Your Fields

Sjoerd Willem Duiker, Ph.D., CCA

Reports have come in about concentrated flow leading to rills and gully formation over the winter. How can you repair that and avoid it from happening again? More
Photo Credit: Sjoerd Duiker, Penn State Extension.
Threat of ‘Incidental Transfer’ of Manure to Streams - Articles Articles
With soil profiles being fully recharged with water and future runoff, creates the threat of ‘incidental transfer’ of nutrients and dissolved organic carbon from surface applied manure to streams and sinkholes. More
Safety Risk from Manure Storages of Dairy Cows Bedded with Gypsum
Safety Risk from Manure Storages of Dairy Cows Bedded with Gypsum - Articles Articles

Safety Risk from Manure Storages of Dairy Cows Bedded with Gypsum

Eileen E. Fabian (Wheeler), Ph.D., Michael Hile, Dan Hofstetter

Findings from on-farm monitoring of dairies using gypsum as stall bedding show a link has been found to highly toxic levels of hydrogen sulfide gas during manure movement and agitation. More
Potential to Integrate Grazing into No-Till Systems
Potential to Integrate Grazing into No-Till Systems - Articles Articles

Potential to Integrate Grazing into No-Till Systems

Sjoerd Willem Duiker, Ph.D., CCA

This publication details rotating perennial pastures with annual crops, grazing cover crops, and grazing crop residue—all of which show promise to improve profit and soil health and increase diversity on crop farms. More
How quickly can you increase soil organic matter content?
Can I Increase Soil Organic Matter by 1% This Year? - Articles Articles

Can I Increase Soil Organic Matter by 1% This Year?

Sjoerd Willem Duiker, Ph.D., CCA

Soil organic matter is a primary measure of soil health. It is important to monitor soil organic matter and try to increase it. But what is a realistic goal? More
Manure Additive Shows Swine Odor Reduction
Manure Additive Shows Swine Odor Reduction - Articles Articles

Manure Additive Shows Swine Odor Reduction

Eileen E. Fabian (Wheeler), Ph.D.

The control of manure odors is an issue of such complexity that it requires a combination of control strategies. More
Soil compaction at grain harvest and while grazing
Soil compaction at grain harvest and while grazing - Articles Articles

Soil compaction at grain harvest and while grazing

Sjoerd Willem Duiker, Ph.D., CCA

Try to avoid soil compaction if you still have corn and soybeans to harvest, or if you graze animals. More
Quick and Easy Worksheet for Assessing Traffic-Induced Soil Compaction Risk
Quick and Easy Worksheet for Assessing Traffic-Induced Soil Compaction Risk - Articles Articles
This worksheet gives you a simple, easy-to-use method for assessing the traffic-induced soil compaction risk posed by your field equipment. More
The ‘dweller’ dung beetle Sphaeridium scarabaeoides, a predator of fly larvae observed 4/21/17 in Tionesta, PA.
The Lowly Dung Beetle - Articles Articles

The Lowly Dung Beetle

Sjoerd Willem Duiker, Ph.D., CCA

Learn about the important role these often forgotten insects play on your livestock farm. More
Soil Health in Field and Forage Crop Production
Soil Health in Field and Forage Crop Production - Articles Articles

Soil Health in Field and Forage Crop Production

Sjoerd Willem Duiker, Ph.D., CCA

This publication emphasizes the natural principles of the no-till system and discusses 14 management techniques for improving soil health. More
Soil Crusting
Soil Crusting - Articles Articles

Soil Crusting

Sjoerd Willem Duiker, Ph.D., CCA

Reports have come in of emergence problems in soybean fields from soil crusting, which happens due to dispersion of soil particles, reorientation of dispersed particles, drying, and desiccation. More
Pennsylvania Soil Quality Assessment Worksheet
Pennsylvania Soil Quality Assessment Worksheet - Articles Articles

Pennsylvania Soil Quality Assessment Worksheet

Sjoerd Willem Duiker, Ph.D., CCA

This publication is intended to help agricultural producers, gardeners, and others assess the quality of their soil. More
Crimson clover
Time to Plant Fall Cover Crops - Articles Articles

Time to Plant Fall Cover Crops

Sjoerd Willem Duiker, Ph.D., CCA

This is a golden opportunity for cover crop seedings. More
Psychrometric Chart Use
Psychrometric Chart Use - Articles Articles

Psychrometric Chart Use

Eileen E. Fabian (Wheeler), Ph.D.

A psychrometric chart presents properties of air in a graphical format useful for troubleshooting greenhouse or livestock building environmental problems. More
Examples of pull tube with pump for gas concentration detection.
Ammonia Monitoring in Barns Using Simple Instruments - Articles Articles

Ammonia Monitoring in Barns Using Simple Instruments

Eileen E. Fabian (Wheeler), Ph.D.

This article describes simple relatively-inexpensive instruments for detecting ammonia gas concentration in animal housing to assure proper air quality. More
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