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Filtering by: Subject Animal waste -- Oregon -- Willamette River Valley Decade 1990-1999 Peer Reviewed No Resource Type Dissertation

Effect of temperature and photoperiod on growth and development of the filbert leafroller, archips rosanus L. (lepidoptera: Tortricidae) in the Willamette Valley of Oregon

Creator:

Al-Zabidi, Ahmed Hizam, 1953-

Abstract:

Role of temperature and photoperiod on development of the filbert leafroller, Archips rosanus L., (Lepidoptera: Tortricidae) from the Willamette Valley, Oregon was studied in the laboratory and in the field. Both temperature and photoperiod had a significant influence on the developmental rate of this species from neonate larva to adult...

Resource Type:

Dissertation

Full Text:

the Willamette Valley of Oregon. Abstract approved: Professor. M. T. AliNiazee Role of
Nitrogen available to winter wheat as influenced by previous crop in a moist xeric environment

Creator:

Qureshi, Maqsood Hassan

Abstract:

Rotating wheat with other crops is a common practice in the Willamette Valley of western Oregon. Depending upon previous crop and soil type, current N fertilizer recommendations for wheat in the Willamette Valley vary widely. Excessive fertilizer poses environmental risk, whereas lower N inputs than required by the crop represent...

Resource Type:

Dissertation

Full Text:

. Christensen Rotating wheat with other crops is a common practice in the Willamette Valley of western Oregon
Developmental biology and phenology of the walnut husk fly, Rhagoletis completa Cresson (Diptera: Tephritidae) in the Willamette Valley of Oregon

Creator:

Kasana, Abdulmajid

Resource Type:

Dissertation

Full Text:

, Rhagoletis completa Cresson (Diptera: Tephritidae) in the Willamette Valley of Oregon AN ABSTRACT OF THE

ScholarsArchive@OSU

Effect of temperature and photoperiod on growth and development of the filbert leafroller, archips rosanus L. (lepidoptera: Tortricidae) in the Willamette Valley of Oregon

Nitrogen available to winter wheat as influenced by previous crop in a moist xeric environment

Developmental biology and phenology of the walnut husk fly, Rhagoletis completa Cresson (Diptera: Tephritidae) in the Willamette Valley of Oregon

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