AcresUSA.com links

Archive | Weeds

battle-against-weeds

True Grit in Battle Against Weeds

U.S. Department of Agriculture agronomist Frank Forcella has devised a tractor-mounted system that uses compressed air to shred small annual weeds like common lambsquarters with high-speed particles of grit made from dried corn cobs. Ongoing field trials may confirm the system’s potential to help organic growers tackle infestations of weeds that have sprouted around the […]

David Mortensen Interview

Interview: Chemical Crutch — Examining the Industrial Agriculture Cycle of Dependence from a Whole-Systems Approach

David Mortensen, Ph.D. interviewed by: Chris Walters David Mortensen, Ph.D., is a professor of weed ecology at Penn State. Back in early 2012 he led a team of co-authors who produced a paper called “Navigating a Critical Juncture in Sustainable Weed Management.” The equivalent of an agricultural bombshell, it delivered unhappy news about the consequences […]

Ragweed

Fighting Weeds with Microbes

We read many, many studies involving manipulation of DNA with as of yet uncalculated risks. It was quite refreshing to read new research employing DNA-based tools in tandem with common sense for the good of all forms of agriculture and the health of the soil. Using high-powered DNA-based tools, a recent study at the University […]

Weed control Amaranth

Fungus May Offer Natural Weed Control

A naturally occurring fungus may prove useful in the weed control fight against Palmer amaranth, an aggressive southern weed that can grow at the rate of 2 inches a day and out-compete corn, cotton, soybean and other crops for resources, potentially reducing their yields. Weed Control Important to Avoid Glyphosate Resistance To make matters worse, […]

Photo by USDA NRCS

New Bale Unroller Design Proves Effective

John Wilhoit and Timothy Coolong from the University of Kentucky have introduced a new technology that can make the application of organic mulches more efficient. The team altered a conventional round-bale unroller and designed experiments to document its efficiency. “We modified an unroller so that the new design would be offset a sufficient distance for […]

Illustration_Vicia_sativa0

Vetch Cover Crop Recommended for Organic Zucchini

In a new study, the popular cover crop vetch (Vicia sativa L.) was used in a two-year field experiment designed to determine the effects on organic zucchini yield and quality of vetch residue management strategies incorporating green manure using a roller-crimper (RC) and organic fertilizers. To allow for timely crop rotation in organic farming, the […]