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 24
Página 111
... continually crop- ping this grain on the same land . The most skilled farmers were unanimous in recommending rotation of crops . The most gener- ally advised rotation gave one wheat crop in three years . Under the stress of hard ...
... continually crop- ping this grain on the same land . The most skilled farmers were unanimous in recommending rotation of crops . The most gener- ally advised rotation gave one wheat crop in three years . Under the stress of hard ...
Página 113
... continual culture of wheat on a certain piece of ground , there being no fertilizing of any kind , as , for example , the " experimental acre " in Kansas . This trial was begun in 1880 , and by 1896 the yield was falling off . Permanent ...
... continual culture of wheat on a certain piece of ground , there being no fertilizing of any kind , as , for example , the " experimental acre " in Kansas . This trial was begun in 1880 , and by 1896 the yield was falling off . Permanent ...
Página 121
... they were not washed by frequent rains , were a continual temptation to 1 Mon. U. S. Geol . Sur . , 25 : 546-547 . 2 Indus . Com . , 10 : xxxii . carry the " empire " yet farther west . The CROP ROTATION AND IRRIGATION 121.
... they were not washed by frequent rains , were a continual temptation to 1 Mon. U. S. Geol . Sur . , 25 : 546-547 . 2 Indus . Com . , 10 : xxxii . carry the " empire " yet farther west . The CROP ROTATION AND IRRIGATION 121.
Página 122
... continually wore out its resources . The desert had been re- moved from the maps . The supplications of the devout and the dynamite of the " rainmaker , " a suggestion of the Indian medicine men who had held sway on the plains less than ...
... continually wore out its resources . The desert had been re- moved from the maps . The supplications of the devout and the dynamite of the " rainmaker , " a suggestion of the Indian medicine men who had held sway on the plains less than ...
Página 131
... continually fix- ing atmospheric nitrogen in certain regions of Chile and Peru , thus creating the extensive deposits of nitrate of soda there found in a natural state . Men realized the increasing importance of the nitrogen prob- lem ...
... continually fix- ing atmospheric nitrogen in certain regions of Chile and Peru , thus creating the extensive deposits of nitrate of soda there found in a natural state . Men realized the increasing importance of the nitrogen prob- lem ...
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 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