The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryO. Judd, 1908 - 369 páginas |
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Página 132
... manure or mineral fertilizer . While some very successful experiments were made , the percentage of fail- ures was too great for practical purposes . The root tubercle bacteria seem to give the greatest promise of success . All of those ...
... manure or mineral fertilizer . While some very successful experiments were made , the percentage of fail- ures was too great for practical purposes . The root tubercle bacteria seem to give the greatest promise of success . All of those ...
Página 135
... manure and commercial fertilizers . It is only on farms where the supply of manure is not adequate to preserve a high state of soil fertility that commercial fertilizers are economical . In general farming the former has the greatest ...
... manure and commercial fertilizers . It is only on farms where the supply of manure is not adequate to preserve a high state of soil fertility that commercial fertilizers are economical . In general farming the former has the greatest ...
Página 136
... manure to crops grown in the rotation , such as maize , and to apply the commercial fertilizers directly to the wheat crop . Manure . It is claimed that the soils of China have been in continuous cultivation for more than 4,000 years ...
... manure to crops grown in the rotation , such as maize , and to apply the commercial fertilizers directly to the wheat crop . Manure . It is claimed that the soils of China have been in continuous cultivation for more than 4,000 years ...
Página 137
... manure should be kept moist and compact . The loss is less in deep stalls than in covered heaps . The fer- tilizing constituents of well rotted manure are more quickly available to plants than those of fresh manure , and the former ...
... manure should be kept moist and compact . The loss is less in deep stalls than in covered heaps . The fer- tilizing constituents of well rotted manure are more quickly available to plants than those of fresh manure , and the former ...
Página 138
... manure to four bushels of bone dust . The lime of the bones is converted into gypsum , and the phosphoric acid is reduced to a state more easily soluble and assimilable . Formerly bones were also often burned . In 1817 superphosphates ...
... manure to four bushels of bone dust . The lime of the bones is converted into gypsum , and the phosphoric acid is reduced to a state more easily soluble and assimilable . Formerly bones were also often burned . In 1817 superphosphates ...
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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