The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryO. Judd, 1908 - 369 páginas |
Dentro del libro
Resultados 6-10 de 49
Página 81
... machine so that it will perform perfectly each and every operation connected with harvesting , but also to apply a power that will operate the machine . Under headers are included all machines that are designed to gather only the heads ...
... machine so that it will perform perfectly each and every operation connected with harvesting , but also to apply a power that will operate the machine . Under headers are included all machines that are designed to gather only the heads ...
Página 83
... machine , and gradually evolved into the present day reel . Nearly all of the principles involved in the header seem to have been developed mainly in connection with other machines , such as the reaper and combined harvester , in ...
... machine , and gradually evolved into the present day reel . Nearly all of the principles involved in the header seem to have been developed mainly in connection with other machines , such as the reaper and combined harvester , in ...
Página 84
... machine usually work together . From 50 to 75 acres a day are thus harvested . Three header - boxes , or barges , are usually used with one header . These are often unloaded at the stack or machine by horse power . A peculiarly arranged ...
... machine usually work together . From 50 to 75 acres a day are thus harvested . Three header - boxes , or barges , are usually used with one header . These are often unloaded at the stack or machine by horse power . A peculiarly arranged ...
Página 85
... machine to operate some of its parts . The latter principle has been utilized in practically all harvest- ing machines ever built , excepting some of the combined har- vesters constructed since 1903. Some form of the reel is also found ...
... machine to operate some of its parts . The latter principle has been utilized in practically all harvest- ing machines ever built , excepting some of the combined har- vesters constructed since 1903. Some form of the reel is also found ...
Página 86
... machine during the course of the play . While English genius invented the essential contrivances of the reaper , American ingenuity must in the main be accredited with the rapid perfection of the machine for practical use . The first ...
... machine during the course of the play . While English genius invented the essential contrivances of the reaper , American ingenuity must in the main be accredited with the rapid perfection of the machine for practical use . The first ...
Otras ediciones - Ver todas
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 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 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
Pasajes populares
Página 77 - Texas, Algeria, Central Asia, China, Japan, Morocco. June — California, Oregon, Mississippi, Alabama, Georgia, North Carolina, South Carolina, Tennessee, Virginia, Kentucky, Kansas, Arkansas, Utah, Colorado, Missouri, Turkey, Greece, Italy, Spain, Portugal, south of France. July — New England, New York. Pennsylvania, Ohio. Indiana, Michigan, Illinois. Iowa, Wisconsin, southern Minnesota, Nebraska, upper Canada, Roumania, Bulgaria, Austria, Hungary, south of Russia, Germany, Switzerland, south...
Página 36 - This preservation of favourable individual differences and variations, and the destruction of those which are injurious, I have called Natural Selection, or the Survival of the Fittest.
Página 77 - Columbia, Belgium, Holland, Great Britain, Denmark, Poland, Central Russia. September and October — Scotland, Sweden, Norway, North of Russia. November — Peru, South Africa.
Página 143 - Chief of the Bureau of Soils in the United States Department of Agriculture...
Página 126 - The conclusion logically follows that on the average farm the great controlling factor in the yield of crops is not the amount of plant food in the soil, but is a physical factor the exact nature of which is yet to be determined.
Página 243 - ... made under the rules of some commercial body, by which the conditions as to the unit of amount, the quality, and the time of delivery are stereotyped, and only the determination of the total amount and the price is left open to the contracting parties."* Another important class of transactions are "cash...
Página 130 - It appears, further, that practically all soils contain sufficient plant food for good crop yield, that this supply will be indefinitely maintained, and that the actual yield of plants adapted to the soil depends mainly, under favorable climatic conditions, upon the cultural methods and suitable crop rotation.
Página 125 - ... diversified in appearance and quality ; yet, as it was stated in the Introductory Lecture, they consist of different proportions of the same elements ; which are in various states of chemical combination, or mechanical mixture. The substances which constitute soils have been already mentioned. They are certain compounds of the earths, silica, lime, alumina, magnesia...
Página 137 - Barnyard manure contains all the fertilizing elements required by plants in forms that insure plentiful crops and permanent fertility to the soil. It not only enriches the soil with the nitrogen, phosphoric acid, and potash, which it contains, but it also renders the stored-up materials of the soil more available, improves the mechanical condition of the soil, makes it warmer, and enables it to retain more moisture or to draw it up from below.
Página 74 - We have ploughed, we have sowed, We have reaped, we have mowed We have brought home every load, Hip, hip, hip, Harvest home ! and thus, sir, the whole assembly shout