The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryO. Judd, 1908 - 369 páginas |
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Página 36
... commercial importance at a comparatively recent date , there is no doubt of selection having been one of the most powerful influences from the very first in developing wheat , although men were not aware of its operation . What- ever ...
... commercial importance at a comparatively recent date , there is no doubt of selection having been one of the most powerful influences from the very first in developing wheat , although men were not aware of its operation . What- ever ...
Página 53
... commercial seeds has been subjected to any tests other than those made by the reliable seed firms . This shows a great lack of apprecia- tion of one of the essential factors of agriculture . It is one of the most remarkable and ...
... commercial seeds has been subjected to any tests other than those made by the reliable seed firms . This shows a great lack of apprecia- tion of one of the essential factors of agriculture . It is one of the most remarkable and ...
Página 92
... commercial way did not begin until 1885 . The Steam Harvester has a cutting bar from 24 to 42 feet long , requires eight men to operate it , and harvests from 75 to 125 acres per day at a cost of from 30 to 50 cents per acre , which is ...
... commercial way did not begin until 1885 . The Steam Harvester has a cutting bar from 24 to 42 feet long , requires eight men to operate it , and harvests from 75 to 125 acres per day at a cost of from 30 to 50 cents per acre , which is ...
Página 93
... commercial way in 1892. The average life of the machine is from 8 to 15 years . The great advantages of this machine are economy in time and power on account of combining so many operations in one , the rapidity with which grain may be ...
... commercial way in 1892. The average life of the machine is from 8 to 15 years . The great advantages of this machine are economy in time and power on account of combining so many operations in one , the rapidity with which grain may be ...
Página 108
... commercial fertilizers unless rotation of crops is practiced . Comparative Utility of Crop Rotation . As a rule the pioneer farmer in a new country never practices much rotation of crops . This is one of the factors of high and ...
... commercial fertilizers unless rotation of crops is practiced . Comparative Utility of Crop Rotation . As a rule the pioneer farmer in a new country never practices much rotation of crops . This is one of the factors of high and ...
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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 farm farmers fertilizers 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 operations Pacific coast phosphoric acid plow potash pounds practically price of wheat produced profitable railroads 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