The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryOrange Judd Company, 1919 - 369 páginas |
Dentro del libro
Resultados 6-10 de 35
Página 50
... rust resistant varieties from the cold and the hot and dry parts of Russia into sections of the United States having a similar climate . A low altitude and an abundance of moisture seem to produce softer wheats . Soil and Climate . Many ...
... rust resistant varieties from the cold and the hot and dry parts of Russia into sections of the United States having a similar climate . A low altitude and an abundance of moisture seem to produce softer wheats . Soil and Climate . Many ...
Página 56
... rust resistance . Four or five winter varieties obtained from eastern and south- ern Russia were tested by the department in 1901 and 1902 . They were much hardier than any varieties grown in this country , and extended the winter wheat ...
... rust resistance . Four or five winter varieties obtained from eastern and south- ern Russia were tested by the department in 1901 and 1902 . They were much hardier than any varieties grown in this country , and extended the winter wheat ...
Página 73
... rust ; predatory insects , birds and rodents ; fire ; various dis- eases and other unfavorable conditions may defeat all means to success at the farmer's command . Thus wheat raising , like most of the extractive industries , has a ...
... rust ; predatory insects , birds and rodents ; fire ; various dis- eases and other unfavorable conditions may defeat all means to success at the farmer's command . Thus wheat raising , like most of the extractive industries , has a ...
Página 162
... Rust . What is popularly termed wheat rust may be the result . of one or more of a number of rust fungi , parasitic plants . This dis- ease was mentioned by Virgil . It was known in Britain before 1592 . Fontana ( 1767 ) is generally ac ...
... Rust . What is popularly termed wheat rust may be the result . of one or more of a number of rust fungi , parasitic plants . This dis- ease was mentioned by Virgil . It was known in Britain before 1592 . Fontana ( 1767 ) is generally ac ...
Página 163
... RUST SPORES COMMONLY FOUND ON WHEAT At the left is shown the uredospores of the red rust , commonly found in early summer . At the right , the two - celled teleutospores or winter spores of the black rust . These are the red spores that ...
... RUST SPORES COMMONLY FOUND ON WHEAT At the left is shown the uredospores of the red rust , commonly found in early summer . At the right , the two - celled teleutospores or winter spores of the black rust . These are the red spores that ...
Otras ediciones - Ver todas
Términos y frases comunes
acre agriculture amount annual Argentina average baked bread broadcast seeder bucket shop bushels bushels of wheat Canada cars cents per bushel century cereals Chicago climate combined harvester commercial corn cost crop rotation cultivation Dakota durum wheat early elevators England Europe experiment station export factor farm farmers feet fertilizers flour germination gluten grain grower grown harvest header Hessian fly Hybrid important increased industry insects irrigation Kansas kernel land larvæ loss macaroni machine machinery manure methods milling moisture nitrogen North North Dakota operation Pacific coast phosphoric acid plow potash pounds practically primary markets produced profitable railroads raised Red river valley Rept rotation Russia rust seed shipped smut soil sown speculative spores spring wheat storage straw supply threshing tion trade transportation United varieties weeds wheat crop wheat growing wheat plant winter wheat Yearbook U. S. Dept yield