30 pages matching Illinois Natural History in this book
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Agricultural Economics Agricultural Engineering Agronomy alfalfa alfalfa hay Altho amount Animal Husbandry apple applied Assistant Avenex average bins bushels calcium carcasses cash cattle cents chaulmoogra oil consumption cooperation cornstalks cost cover crops cows Dairy disease drylot effect eggs ewes families farm farmers feed fertilizer Floriculture fruit grade grain grown growth harvest Horticulture hybrids Illinois Natural History inbred income increased insect ketosis labor lambs land leafhoppers legumes lespedeza limestone livestock manure mastitis methods milk moisture molasses Morrow plots Natural History Survey nitrogen oats orchard peach percent percentage perct period phosphate pigs plants plots pounds production protein ration red clover reported resistant samples season seed showed silage sodium nitrate Southdown sows soybeans sprays starch storage strains sweet clover Table temperature tests thru tion tractor treatment trees trucks Urbana varieties wheat winter yields