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Fred Reuel Jones
9 cilt bulundu.
Cilt sonuçları
![The leaf-spot diseases of alfalfa and red clover caused by the fungi Pseudopeziza medicaginis and Psuedopeziza [sic] trifolii, respectively](https://covers.openlibrary.org/b/id/11891580-L.jpg)
The leaf-spot diseases of alfalfa and red clover caused by the fungi Pseudopeziza medicaginis and Psuedopeziza [sic] trifolii, respectively
Fred Reuel Jones · U.S. Dept. of Agriculture
38 sayfa · 1919
Alfalfa / Diseases and pests / Red clover / Fungi in agriculture
Effect of soil temperature upon the development of nodules on the roots of certain legumes
Fred Reuel Jones, W. B. Tisdale · Government Printing Office
31 sayfa · 1921
Legumes / Nitrifying bacteria / Plants / Effect of temperature on