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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
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
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
Mowing with a scythe.
Mowing with a Scythe - Articles Articles

Mowing with a Scythe

Sjoerd Willem Duiker, Ph.D., CCA

The scythe is an instrument used to cut grass or shrub. This article gives a description of different types of scythes, the parts of the scythe, and sharpening and mowing techniques. More
Figure 1. The Penn State Cover Crop Interseeder and Applicator. (Photo: Greg Roth)
Cover Crop Interseeder and Applicator - Articles Articles

Cover Crop Interseeder and Applicator

Gregory W. Roth, Ph.D., Sjoerd Willem Duiker, Ph.D., CCA, William S. Curran, Ph.D.

The Penn State Cover Crop Interseeder and Applicator was designed to help establish cover crops in areas where cover crop establishment is not that feasible because of a late harvest and short season. 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
Effects of Soil Compaction
Effects of Soil Compaction - Articles Articles

Effects of Soil Compaction

Sjoerd Willem Duiker, Ph.D., CCA

Soil compaction is the reduction of soil volume due to external factors; this reduction lowers soil productivity and environmental quality. More
Diagnosing Soil Compaction Using a Penetrometer (Soil Compaction Tester)
Diagnosing Soil Compaction Using a Penetrometer (Soil Compaction Tester) - Articles Articles
A diagnostic tool to measure the extent and depth of subsurface compaction is a penetrometer, or soil compaction tester. More
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