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Filtering by: Creator Roa, Pedro Dante Contributor advisor sim Bollen, W. B.

Effect of certain fumigants on nitrification and other soil microbial activities

Creator:

Roa, Pedro Dante

Resource Type:

Masters Thesis

Full Text:

ACTIVITIES by PEDRO DANTE ROA A THESIS submitted to OREGON STATE COLLEGE in partial fulfillment
Availability of nitrogen in ammoniated bark used as a soil amendment

Creator:

Aspitarte, Thomas Robert

Resource Type:

Dissertation

Full Text:

laboratory, Mrs. Martha Porter, Mrs. Laura Leach, Mr. Dante Roa, and Mr. William Wu. To Mrs. W. B. Lollen