Subclovers are used for forage and
hay and have been used successfully
in Oregon as fall-planted and relay interplanted
cover crops in annual
rotations. They are capable of
accumulating substantial amounts of
N, a portion of which is available to
the following crop. Rapid growth
suppresses weeds in spring.
Cover crop selection and management depend on many factors, among them the cover crop’s ability to accumulate dry matter (i.e., residues) and nitrogen (N). Dry matter provides energy for soil organisms, contributes to soil organic matter, improves tilth, and acts as a sink for nutrients.
This publication is offered as a reference to Integrated Pest Management (IPM) resources available to Oregon growers. It highlights university,
federal, state, and private services and resources that provide support to growers in the implementation of IPM programs. The Guide consists of five sections:
• An introduction to the National...
Reexamination of fossilized plant material from the westernmost Pennsylvanian-age wetland flora in North America reveals that material of Pecopteris oregonensis Arnold represents a filicalean fern frond with annulate sporangia and anatomically preserved vascular tissues of the rachis. The frond, which is redescribed as Senftenbergia oregonensis (Arnold) Hillier et Rothwell comb....
Since their discovery in the 1990s, the great potential of carbon nanotubes (CNTs) has made them a focus of many research endeavors, including their application as components of biosensors. The inherent chemical "inertness" of CNTs makes their application to biosensing a challenge. It is necessary to "decorate" their surfaces to...