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 57
Página 42
... fertilized in nature ) , which is thrown into action when different varieties are arti- ficially crossed . " As to these varieties Hays says : " The further they have departed from ancestral characteristics and formed diverse qualities ...
... fertilized in nature ) , which is thrown into action when different varieties are arti- ficially crossed . " As to these varieties Hays says : " The further they have departed from ancestral characteristics and formed diverse qualities ...
Página 58
... fertilizing and irriga- tion . The resulting variations in wheat are quantitative rather than qualitative , except in the case of irrigation , which is practiced on a comparatively small part of the wheat area . This process and that of ...
... fertilizing and irriga- tion . The resulting variations in wheat are quantitative rather than qualitative , except in the case of irrigation , which is practiced on a comparatively small part of the wheat area . This process and that of ...
Página 63
... per- Time of Plowing . - In general , it may be said that in the spring wheat area of the United States , fall plowing slightly THE TYPICAL FARM WHEAT DRILL WITHOUT FERTILIZER ATTACHMENT increases the CULTIVATION OF WHEAT 63.
... per- Time of Plowing . - In general , it may be said that in the spring wheat area of the United States , fall plowing slightly THE TYPICAL FARM WHEAT DRILL WITHOUT FERTILIZER ATTACHMENT increases the CULTIVATION OF WHEAT 63.
Página 64
An Economic History and Practical Manual of the Wheat Industry Peter Tracy Dondlinger. THE TYPICAL FARM WHEAT DRILL WITHOUT FERTILIZER ATTACHMENT increases the yield , is most destructive to weeds and.
An Economic History and Practical Manual of the Wheat Industry Peter Tracy Dondlinger. THE TYPICAL FARM WHEAT DRILL WITHOUT FERTILIZER ATTACHMENT increases the yield , is most destructive to weeds and.
Página 71
... fertilized the land and sowed the seed , all at one operation . There is no record of its having done any work . In ... fertilizer together . Perhaps the only instance where any practical and extensive results in this line have been ob ...
... fertilized the land and sowed the seed , all at one operation . There is no record of its having done any work . In ... fertilizer together . Perhaps the only instance where any practical and extensive results in this line have been ob ...
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