Relationship between rhizosphere pH changes induced by root absorption of ammonium- verus nitrate-nitrogen and root diseases, with particular reference to take-all of wheat.
Published: 1972
Language: eng
Number of pages: 68
Subjects: Roots (Botany) -- Diseases and pests.; Nitrogen fertilizers.
Notes: Thesis (Ph. D.)--Washington State University.

"References": leaves 52-60.

WSU:"Department of Plant Pathology"

WSU:Another copy on microfilm no. 1540.