Research report from OSU's North Willamette Research and Extension Center
Delbert Hemphill, Gary Reed, Oscar Gutbrod, and Fred Crowe
Oregon State University
Introduction
Introduction
Tomato and muskmelon production in the Willamette Valley is limited by cool springs, a short growing season, and relatively cool nights, even during mid-summer. Cultural techniques to increase the mean air and soil temperature around plants, such as black plastic ground mulch, floating row covers, and tunnels, have hastened development and increased yield of both these crops.
Introduction
Introduction
Introduction
Higher yields and improved root quality are essential for processing carrot growers to remain competitive. Nitrogen fertilizer applications usually range from 50 to 100 pounds N/acre with most between 50 and 80 pounds. More research is needed to clarify yield response to N, especially at higher rates, and the influence of N on such root characteristics as diameter, length, splitting, and rots. Yield response to application of banded P fertilizer is also poorly understood.
Research report from OSU's North Willamette Agricultural Research and Extension Center
Delbert Hemphill
OSU Dept of Horticulture, NWREC
Introduction
Introduction
Research report from OSU's North Willamette Research and Extension Center
Delbert Hemphill and Gary Reed
Oregon State University
Introduction
Control of virus-vectoring aphids is essential in potato seed production to exclude viruses such as potato virus Y (PVY) and leaf roll. Floating row covers might protect plants from insect attack, reducing the need for insecticides.
Introduction
Tomato and muskmelon production in the Willamette Valley is limited by cool springs, a short growing season, and relatively cool nights, even during mid-summer. Cultural techniques to increase the mean air and soil temperatures around plants, such as plastic mulch and row covers, have hastened development and increased yield of both crops.
Introduction