1-3 of 3 Books
Minor elements and their effects on the growth and chemical composition of herbage plants
Minor elements and their effects on the growth and chemical composition of herbage plants
By R Dorrington Williams
Effect of temperature and zinc on development of tobacco mosaic virus in resistant and susceptible tomatoes
Effect of temperature and zinc on development of tobacco mosaic virus in resistant and susceptible tomatoes
By Justo Lopez-Garcia
The effects of certain mercurial fungicides on gladiolus plants
The effects of certain mercurial fungicides on gladiolus plants
By Elmer Thurman Palm