The Book of Wheat: An Economic History and Practical Manual of the Wheat Industry |
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No agricultural college or experiment station should be without a text-book on the
subject. The agricultural or economic section of every library should certainly
contain a general reference book on wheat. The method of treating the subject ...
No agricultural college or experiment station should be without a text-book on the
subject. The agricultural or economic section of every library should certainly
contain a general reference book on wheat. The method of treating the subject ...
Página
I'urrow Method of Irrigation . . . . . Twenty Self-Binding Harvesters at Work
Combined Grain and Fertilizer Drill . Three Threshing Outfits at Work . . x 3 9 12
14 15 16 17 20 34 38 42 48 52 60 64 67 68 79 80 81 82 85 86 87 98 104 112
120 128 ...
I'urrow Method of Irrigation . . . . . Twenty Self-Binding Harvesters at Work
Combined Grain and Fertilizer Drill . Three Threshing Outfits at Work . . x 3 9 12
14 15 16 17 20 34 38 42 48 52 60 64 67 68 79 80 81 82 85 86 87 98 104 112
120 128 ...
Página 31
The things most characteristic of it have been its rapidly increasing magnitude,
the study of questions most diversified in interests and far-reaching in importance
, and the thorough, effectual and scientific methods employed. As new interests ...
The things most characteristic of it have been its rapidly increasing magnitude,
the study of questions most diversified in interests and far-reaching in importance
, and the thorough, effectual and scientific methods employed. As new interests ...
Página 35
In this process two different methods may be used, hybridization and change of
environment. Only those variations which may occur or be induced
independently of environment are considered in this chapter. Others are treated
in subsequent ...
In this process two different methods may be used, hybridization and change of
environment. Only those variations which may occur or be induced
independently of environment are considered in this chapter. Others are treated
in subsequent ...
Página 39
A method frequently used is the selection of plump kernels from grain in the bulk.
While there is doubtless some advantage in this method, it cannot give the best
results, for many of the plump kernels may come from imperfectly filled heads, ...
A method frequently used is the selection of plump kernels from grain in the bulk.
While there is doubtless some advantage in this method, it cannot give the best
results, for many of the plump kernels may come from imperfectly filled heads, ...
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Términos y frases comunes
acre agriculture Amer American amount annual Argentina average baked 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 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 land loss macaroni machine machinery manure methods miller milling Minnesota moisture nitrogen North North Dakota operation Pacific coast phosphoric acid plow pounds practically price of wheat 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 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
Información bibliográfica
| Título | The Book of Wheat: An Economic History and Practical Manual of the Wheat Industry |
| Autor | Peter Tracy Dondlinger |
| Editor | O. Judd, 1908 |
| Procedencia del original | Universidad de California |
| Digitalizado | 20 Nov. 2007 |
| Largo | 369 páginas |
| Exportar cita | BiBTeX EndNote RefMan |