The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryOrange Judd Company, 1919 - 369 páginas |
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Página 135
... phosphoric acid . By applying from 250 to 500 pounds of this commercial fertilizer per acre the best general results are obtained . If land has been quite exhausted by continuous wheat growing , the proportion of ni- trogen and potash ...
... phosphoric acid . By applying from 250 to 500 pounds of this commercial fertilizer per acre the best general results are obtained . If land has been quite exhausted by continuous wheat growing , the proportion of ni- trogen and potash ...
Página 137
... 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 mois- ture or to ...
... 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 mois- ture or to ...
Página 138
... Phosphoric Acid . The four main sources of this are : ( 1 ) Bones ; ( 2 ) phosphatic deposits like those of South ... acid . One bushel of bone dust dissolved by one - third its weight of the acid is superior as a manure to four bushels ...
... Phosphoric Acid . The four main sources of this are : ( 1 ) Bones ; ( 2 ) phosphatic deposits like those of South ... acid . One bushel of bone dust dissolved by one - third its weight of the acid is superior as a manure to four bushels ...
Página 141
... Phosphoric Acid Potash The waters of the Nile seem to have the largest amount of nitrogen , 1.7 per cent , all the others having merely a trace . Some 24 acre - inches of Rio Grande water add to the soil about 1,075 pounds of potash ...
... Phosphoric Acid Potash The waters of the Nile seem to have the largest amount of nitrogen , 1.7 per cent , all the others having merely a trace . Some 24 acre - inches of Rio Grande water add to the soil about 1,075 pounds of potash ...
Página 142
... Phosphoric acid and lime are much less injurious , and may be harmless if not used in excess . It is safest not to bring commercial fertilizers into immediate con- tact with germinating seeds , and the effect of chemicals applied to ...
... Phosphoric acid and lime are much less injurious , and may be harmless if not used in excess . It is safest not to bring commercial fertilizers into immediate con- tact with germinating seeds , and the effect of chemicals applied to ...
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acre agriculture amount annual Argentina average baked bread broadcast seeder bucket shop bushels bushels of wheat Canada cars cents per bushel century cereals Chicago climate combined harvester commercial corn cost crop rotation cultivation Dakota durum wheat early elevators England Europe experiment station export factor farm farmers feet fertilizers flour germination gluten grain grower grown harvest header Hessian fly Hybrid important increased industry insects irrigation Kansas kernel land larvæ loss macaroni machine machinery manure methods milling moisture nitrogen North North Dakota operation Pacific coast phosphoric acid plow potash pounds practically primary markets produced profitable railroads raised Red river valley Rept rotation Russia rust seed shipped smut soil sown speculative spores spring wheat storage straw supply threshing tion trade transportation United varieties weeds wheat crop wheat growing wheat plant winter wheat Yearbook U. S. Dept yield