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a g tolaas
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Cilt sonuçları
Potato diseases
E. C. Stakman, A. G. Tolaas · University of Minnesota, Dept. of Agriculture, Extension Division
15 sayfa · 1912
Potatoes / Diseases and pests
The use of bordeaux mixture for spraying potatoes
Guy Richard Bisby, A. G. Tolaas · University Farm
32 sayfa · 1920
Bordeaux mixture / Potatoes / Diseases and pests / Control / Spraying and dusting in agriculture