Research Bulletin, Ausgaben 34-44

acid soils agricultural alfalfa Alternaria ammonia amount average bacteria baking tests beans Bordeaux mixture cabbage calcium carbonate calcium oxide carbonate cent clover Colby silt loam commercial conidia conidium crop decrease early blight effect experiments farm homes farmers favorable feeding powers field full lime fungus germination gluten grams grown growth half lime high school increase indirect germination infection influence inoculation Iowa county jars legumes loaf milling and baking Neutral nitrogen content number of farms Pedigree percentage of nitrogen Phos phosphorus Phytophthora Phytophthora infestans Plainfield sand plants potassium phosphate potato produced protein rock phosphate roots rural districts rural population rural school salts seed selected head strains shown solani soluble solution soy beans spores spots spraying sulphate Table temperature tenants tion Tops Tops Tops total nitrogen trials Tricalcium tricalcium phosphate uninoculated VIIIa village Wisconsin yellow berry yield zoöspores