 The production possible from a definite amount of plant -food can be secured only when the conditions are such as to permit its proper solution, distribution and retention by the soil. The fact that fertilizers may now be easily secured, and the ease...  First Principles of Soil Fertility - Página 187por Alfred Vivian - 1908 - 265 páginasVista completa - Acerca de este libro
 | Oregon. Board of Horticulture - 1894 - 606 páginas
...and are easily applied has encouraged careless use rather than a thoughtful expenditure of perhaps an equivalent amount of money or energy in the proper preparation of the soil for them. Of course, it does not follow that no returns are secured from plant food applied under unfavorable... | |
 | Edward Burnett Voorhees - 1898 - 372 páginas
...solution, distribution and retention by the soil. The fact that fertilizers may now be easily secured, and the ease of application, have encouraged a careless...returns cannot be secured under such circumstances. Good plant-food is wasted, and the profit possible to be derived is largely reduced. Again, because farming,... | |
 | Edward Burnett Voorhees - 1898 - 376 páginas
...solution, distribution and retention by the soil. The fact that fertilizers may now be easily secured, and the ease of application, have encouraged a careless...it does not follow that no returns are secured from plant-food applied under unfavorable conditions, though full returns cannot be secured under such circumstances.... | |
 | Oregon. Board of Horticulture - 1898 - 636 páginas
...and are easily applied has encouraged careless use rather than a thoughtful expenditure of perhaps an equivalent amount of money or energy in the proper preparation of the soil for them. Of course, it does not follow that no returns are secured from plant food applied under unfavorable... | |
 | Oregon. Board of Horticulture - 1899 - 650 páginas
...and are easily applied has encouraged careless use rather than a thoughtful expenditure of perhaps an equivalent amount of money or energy in the proper preparation of the soil for them. Of course, it does not follow that no returns are secured from plant food applied under unfavorable... | |
 | Edwin Bret Hart, William Edward Tottingham - 1910 - 348 páginas
...likely to realize a profit from their use. ' ' The fact that fertilizers can now be easily secured, and the ease of application, have encouraged a careless...profit possible to be derived is largely reduced. ' ' Again, in many instances, the ease with which commercial fertilizers can be secured tends to a... | |
 | Agriculture, Arts, Manufactures and Commerce - 1917 - 420 páginas
...solution, distribution, and retention by the soil. " The fact that fertilizers may now be easily secured, and the ease of application, have encouraged a careless...or energy in the proper preparation of the soil." While we agree with the author in his view that fertilizers may be of little use to the careless farmer,... | |
 | Edward Burnett Voorhees - 1926 - 376 páginas
...solution, distribution and retention by the soil. The fact that fertilizers may now be easily secured, and the ease of application, have encouraged a careless...it does not follow that no returns are secured from plant-food applied under unfavorable conditions, though full returns cannot be secured under such circumstances.... | |
 | Oregon. Board of Horticulture - 1897 - 298 páginas
...and are easily applied has encouraged careless use rather than a thoughtful expenditure of perhaps an equivalent amount of money or energy in the proper preparation of the soil for them. Of course, it does not follow that no returns are secured from plant food applied under unfavorable... | |
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