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Nitrogen fertigation practices to optimize growth and yield of northern highbush blueberry (Vaccinium corymbosum L.)

Creator:

Vargas, Oscar L.

Abstract:

Northern highbush blueberry is a long-lived perennial crop that is well adapted to low soil pH conditions. The plants are often shallow rooted and absorb primarily the ammonium (NH₄) form of nitrogen (N) rather than nitrate-N (NO₃-N). Traditionally, commercial blueberry fields have been irrigated with overhead sprinklers and fertilized using...

Resource Type:

Dissertation

Full Text:

studies were conducted in western Oregon to compare fertigation to granular fertilizers and to develop
Spring nitrogen and cultivar effects on winter canola (Brassica napus L.) production in western Oregon

Creator:

Ferguson, Brock T.

Abstract:

Limited information is available on the effects of applied spring nitrogen (N) and cultivar on winter canola (Brassica napus L.) production in high-rainfall environments. The objectives of this investigation were: (i) to determine the effects of spring N and winter canola cultivars on seed and oil production characteristics, and (ii)...

Resource Type:

Masters Thesis

Full Text:

(Brassica napus L.) Production in Western Oregon AN ABSTRACT OF THE THESIS OF Brock T. Ferguson for