The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryO. Judd Company, 1922 - 369 páginas |
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Página 46
... improved . The value of this work in proportion to its cost must appeal to everyone , and indicates its permanency . Luther Burbank made the statement that if a new wheat were bred that would yield only one grain more to each head ...
... improved . The value of this work in proportion to its cost must appeal to everyone , and indicates its permanency . Luther Burbank made the statement that if a new wheat were bred that would yield only one grain more to each head ...
Página 55
... improving the quality of grain if the seed must be given up every few years for a strain grown upon other land ... improved the standard of American wheats and have also extended the industry of rais- ing them . Foreign wheats are ...
... improving the quality of grain if the seed must be given up every few years for a strain grown upon other land ... improved the standard of American wheats and have also extended the industry of rais- ing them . Foreign wheats are ...
Página 61
... improved form is still found in Europe . The movable engine appeared before 1850. In the United States , activity in the invention of steam plows began in 1861 , and it was perhaps entirely con- fined to the use of the traction engine ...
... improved form is still found in Europe . The movable engine appeared before 1850. In the United States , activity in the invention of steam plows began in 1861 , and it was perhaps entirely con- fined to the use of the traction engine ...
Página 62
... improved . The moldboard was then made of iron and steel and given its proper form . While the plow was always essentially a wedge- shaped instrument forced through the soil to loosen it , these improvements perfected it so that the ...
... improved . The moldboard was then made of iron and steel and given its proper form . While the plow was always essentially a wedge- shaped instrument forced through the soil to loosen it , these improvements perfected it so that the ...
Página 63
... improvements which have been made are in minor details . The draft and friction have been reduced to a minimum , and forms have been invented which are best suited for different types of soil and for the application of different kinds ...
... improvements which have been made are in minor details . The draft and friction have been reduced to a minimum , and forms have been invented which are best suited for different types of soil and for the application of different kinds ...
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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