The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryO. Judd Company, 1922 - 369 páginas |
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Resultados 6-10 de 58
Página 50
... effect . A study of the map ' showing wheat districts will show the general effects of climate and soil in the United States . Broadly speaking , the hard , red wheats are found in the central , elevated plains , and the grain becomes ...
... effect . A study of the map ' showing wheat districts will show the general effects of climate and soil in the United States . Broadly speaking , the hard , red wheats are found in the central , elevated plains , and the grain becomes ...
Página 58
... Effects . The soil in nature is more uniformly cov- ered with vegetation throughout the year than it is under cultivation . Dark , exposed soil absorbs more heat than soil covered with vegetation . Thus cultivation is supposed to mod ...
... Effects . The soil in nature is more uniformly cov- ered with vegetation throughout the year than it is under cultivation . Dark , exposed soil absorbs more heat than soil covered with vegetation . Thus cultivation is supposed to mod ...
Página 59
... effect of cultivation on the growth of wheat is through its influence upon the physical condition of the soil , to which great importance is attached . By physical condition is meant friability or openness , capacity for absorbing and ...
... effect of cultivation on the growth of wheat is through its influence upon the physical condition of the soil , to which great importance is attached . By physical condition is meant friability or openness , capacity for absorbing and ...
Página 65
... effect a wedge pass- ing through the soil on a horizontal plane , the uppermost layer of the subsoil is compacted at each plowing . This renders the cubsoil more impervious to water and roots . Subsoiling con- sists in breaking up the ...
... effect a wedge pass- ing through the soil on a horizontal plane , the uppermost layer of the subsoil is compacted at each plowing . This renders the cubsoil more impervious to water and roots . Subsoiling con- sists in breaking up the ...
Página 92
... effect being a steady and uniform motion of all parts at all times and in all conditions of the grain and at any speed at which the harvester may be traveling . " The traction engine is 110 horse - power , has double engines , and nine ...
... effect being a steady and uniform motion of all parts at all times and in all conditions of the grain and at any speed at which the harvester may be traveling . " The traction engine is 110 horse - power , has double engines , and nine ...
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Términos y frases comunes
acre agriculture Amer American amount annual Argentina average baked bran bread bucket shop bushels bushels of wheat Canada cars cents per bushel century cereals Chicago chinch bug climate combined harvester commercial corn cost crop rotation cultivation durum wheat early elevators England Europe experiment station export factor farm farmers fertilizers field flour germination gluten grower grown harvest header Hessian fly Hybrid important increased industry insects irrigation Kansas kernel land larvæ loss macaroni machine machinery manure methods miller milling Minnesota moisture nitrogen North Dakota operation Pacific coast phosphoric acid plow potash pounds practically produced profitable railroads raised Red river valley Report Rept rotation Russia rust seed shipped smut soil sown speculative spores spring wheat storage straw supply threshing tion transportation United varieties weeds wheat crop wheat growing wheat plant winter wheat Yearbook U. S. Dept yield