The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryOrange Judd Company, 1919 - 369 páginas |
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Página 28
... manure .. Wt . per bu . lb. Grain to Grain Straw straw per acre per acre Per cent lb. lb. Nitrogen in dry matter Per cent Ash ( pure ) in dry mat'r 62.6 62.5 2342 6089 1.73 1.98 Plat 3 - Unmanu'd 60.5 67.4 1156 2872 1.84 1.96 Plat 10A ...
... manure .. Wt . per bu . lb. Grain to Grain Straw straw per acre per acre Per cent lb. lb. Nitrogen in dry matter Per cent Ash ( pure ) in dry mat'r 62.6 62.5 2342 6089 1.73 1.98 Plat 3 - Unmanu'd 60.5 67.4 1156 2872 1.84 1.96 Plat 10A ...
Página 124
... manure as a fertilizer . Cato mentions irrigation , frequent tillage and manuring as means of fertilizing the soil . To these Virgil adds ashes . The ancient Peruvians were skillful in the application of manure , a practice that has ...
... manure as a fertilizer . Cato mentions irrigation , frequent tillage and manuring as means of fertilizing the soil . To these Virgil adds ashes . The ancient Peruvians were skillful in the application of manure , a practice that has ...
Página 125
... manures were first studied systematically by Liebig , whose views found their way into the United States before the middle of the century . The publication of his work in 1840 marked a new era in agricultural chemistry . Before his time ...
... manures were first studied systematically by Liebig , whose views found their way into the United States before the middle of the century . The publication of his work in 1840 marked a new era in agricultural chemistry . Before his time ...
Página 126
... manure for all varieties of soils and plants . " Systematic work in the chemical analysis of soils in the United States began in 1850 , when D. D. Owens made an extensive chemical examination of the soils of Kentucky in connection with ...
... manure for all varieties of soils and plants . " Systematic work in the chemical analysis of soils in the United States began in 1850 , when D. D. Owens made an extensive chemical examination of the soils of Kentucky in connection with ...
Página 131
... manures may often occur from this source . It is the part of scientific agriculture to determine how to minimize the activity of inimical ferments . Bacteria providing nitrogenous food for plants seem to be of FERTILIZERS 131.
... manures may often occur from this source . It is the part of scientific agriculture to determine how to minimize the activity of inimical ferments . Bacteria providing nitrogenous food for plants seem to be of FERTILIZERS 131.
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