The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryO. Judd, 1908 - 369 páginas |
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Página 16
... wheat will germinate is 41 ° , the highest 104 ° , and that of most rapid germination , 84 ° . This is according to Johnson . Other authorities claim that wheat will germinate and grow on melting ice . It has also been said that it does ...
... wheat will germinate is 41 ° , the highest 104 ° , and that of most rapid germination , 84 ° . This is according to Johnson . Other authorities claim that wheat will germinate and grow on melting ice . It has also been said that it does ...
Página 17
... wheat growing from a single kernel . Humboldt put on record that in Mexico each grain of wheat produced 40 to 70 stalks . It is probable that each of these men was seeing with the eyes of an enthusiast . The Growth of a Wheat Plant is ...
... wheat growing from a single kernel . Humboldt put on record that in Mexico each grain of wheat produced 40 to 70 stalks . It is probable that each of these men was seeing with the eyes of an enthusiast . The Growth of a Wheat Plant is ...
Página 20
... growing period have a marked effect on the amount of starch produced , and cause it to vary greatly from year to year . The process of transporting elaborated material begins in the planted seed , and does not cease until the wheat is ...
... growing period have a marked effect on the amount of starch produced , and cause it to vary greatly from year to year . The process of transporting elaborated material begins in the planted seed , and does not cease until the wheat is ...
Página 23
... cultivation and ripening of wheat has been given as 65 ° F. for 45 to 60 days , and 55 ° F. for three or four months of the growing season . Of the wheat in the United States , according to the census of 1880 , 67.5 per cent was grown ...
... cultivation and ripening of wheat has been given as 65 ° F. for 45 to 60 days , and 55 ° F. for three or four months of the growing season . Of the wheat in the United States , according to the census of 1880 , 67.5 per cent was grown ...
Página 24
... growth was about 100 days . Recent observations have shown that the number of heat units decreases when the growing period shortens . In general , the growing period is shortest in the coldest climate . The Weight of Different Materials ...
... growth was about 100 days . Recent observations have shown that the number of heat units decreases when the growing period shortens . In general , the growing period is shortest in the coldest climate . The Weight of Different Materials ...
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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 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