Yazar
j r holbert
3 cilt bulundu.
Cilt sonuçları
Control of the root, stalk, and ear rot diseases of corn
J. R. Holbert, G. N. Hoffer · U.S. Dept. of Agriculture
24 sayfa · 1920
Corn root rot / Control / Corn / Diseases and pests
Results of seed-treatment experiments with yellow dent corn
J. R. Holbert, Benjamin Koehler, United States. Department of Agriculture. National Agricultural Library. · U.S. Dept. of Agriculture
64 sayfa · 1931
Corn / Seeds / Research