Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Using a companion crop to control weeds organically

28.01.2004


Since traditional cultivation methods can erode soil, new research taps companion crops for weed control



Organic soybean producers may be able to use winter cereal rye as an inter-seeded companion crop to control weeds, according to research led by a Michigan Agricultural Experiment Station (MAES) crop and soil scientist.

Traditionally, organic growers have used only mechanical cultivation to control weeds, but this method has been shown to cause soil erosion and lead to poor soil structure. Conventional soybean growers have used cover crops successfully in conjunction with herbicides to reduce cultivation and control weeds. The scientists hypothesized that an adaptation of this technique could also be useful for organic growers. The research is published in the January-February 2004 issue of Agronomy Journal.


"Organic growers needed new techniques that meshed with organic systems and had a more positive effect on soil quality, particularly soil structure," said Kurt Thelen, MAES crop and soil sciences researcher at Michigan State University. "Our research looked at two types of planting systems for organic soybeans to determine if interseeding winter cereal rye in the soybeans could help control weeds."

Thelen worked on the research with MSU Extension district field crops agent Dale Mutch, and Research Assistant Todd Martin. They found that inter-seeded winter cereal rye decreases the amount of weeds in the soybeans and increases soybean yield, in years where soil moisture was not a yield-limiting factor. Two years of the three-year project were drier than the 30-year average, which resulted in decreased soybean yields.

"Our results suggest that some means of terminating the inter-seeded rye is necessary for effective management across a range of precipitation levels," Thelen said. "In 76-cm row organic soybean production systems, mechanical cultivation would be an approved practice for terminating rye growth. However, in 19-cm drill-planted systems, new technology that meets the regulatory criteria for organic production is needed to effectively terminate the inter-seeded rye and alleviate moisture-stress related concerns."


###
Agronomy Journal, http://agron.scijournals.org is a peer-reviewed, international journal of agriculture and natural resource sciences published six times a year by the American Society of Agronomy (ASA). Agronomy Journal contains research papers on all aspects of crop and soil science including agroclimatology and agronomic modeling, military land use and management, environmental quality, international agronomy, agricultural research station management, and integrated agricultural systems.

The American Society of Agronomy (ASA) www.agronomy.org, the Crop Science Society of America (CSSA) www.crops.org and the Soil Science Society of America (SSSA) www.soils.org are educational organizations helping their 10,000+ members advance the disciplines and practices of agronomy, crop and soil sciences by supporting professional growth and science policy initiatives, and by providing quality, research-based publications and a variety of member services.

Sara Uttech | EurekAlert!
Further information:
http://www.asa-cssa-sssa.org/

More articles from Agricultural and Forestry Science:

nachricht How much drought can a forest take?
20.01.2017 | University of California - Davis

nachricht Plasma-zapping process could yield trans fat-free soybean oil product
02.12.2016 | Purdue University

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>