The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryO. Judd, 1908 - 369 páginas |
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Página 123
... supply is sufficient to irrigate only a small fraction of the arid domain , approximately three - fourths of a billion acres , several million acres are already under irrigation , and there is a good prospect that many more millions ...
... supply is sufficient to irrigate only a small fraction of the arid domain , approximately three - fourths of a billion acres , several million acres are already under irrigation , and there is a good prospect that many more millions ...
Página 127
... supply different quantities of water to the plant , irre- spective of the percentage of water actually present in the soil . As water conveys the nutritive solutions to the plant , when the supply of water is inadequate , there may also ...
... supply different quantities of water to the plant , irre- spective of the percentage of water actually present in the soil . As water conveys the nutritive solutions to the plant , when the supply of water is inadequate , there may also ...
Página 129
... supplies nitrogenous plant food and aids in making mineral plant foods and fertilizers more available and effective ... supply in the soil is to grow clovers and grasses in the crop rotation and plow under all plant refuse . Leguminous ...
... supplies nitrogenous plant food and aids in making mineral plant foods and fertilizers more available and effective ... supply in the soil is to grow clovers and grasses in the crop rotation and plow under all plant refuse . Leguminous ...
Página 130
... supply will be indefinitely maintained , and that this actual yield of plants adapted to the soil depends mainly , under favorable climatic conditions , upon the cultural methods and suitable crop rotation , a conclusion strictly in ...
... supply will be indefinitely maintained , and that this actual yield of plants adapted to the soil depends mainly , under favorable climatic conditions , upon the cultural methods and suitable crop rotation , a conclusion strictly in ...
Página 131
... supply is so limited that a " nitrogen famine ' had already been predicted , but the discovery of nitrogen- gathering bacteria seems destined to lead to the utilization of air nitrogen at a nominal cost . Plants normally obtain through ...
... supply is so limited that a " nitrogen famine ' had already been predicted , but the discovery of nitrogen- gathering bacteria seems destined to lead to the utilization of air nitrogen at a nominal cost . Plants normally obtain through ...
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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