Draining for Profit: And Draining for HealthOrange Judd Company, 1890 - 252 páginas |
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Página 15
... possible , in the condition rep- resented in Fig . 3 , -that is , the particles of soil should hold water by attraction , ( absorption , ) and the spaces be- tween the particles should be filled with air . Heavy soils which require ...
... possible , in the condition rep- resented in Fig . 3 , -that is , the particles of soil should hold water by attraction , ( absorption , ) and the spaces be- tween the particles should be filled with air . Heavy soils which require ...
Página 18
... possible , nor even very uncommon , for such soils to produce largely , but they are always precarious . To the labor and expense of cultivation , which fairly earn a secure return , there is added the anxiety of chance ; success is ...
... possible , nor even very uncommon , for such soils to produce largely , but they are always precarious . To the labor and expense of cultivation , which fairly earn a secure return , there is added the anxiety of chance ; success is ...
Página 19
... possible proportion , that uncertainty which always attaches to human enterprises , and which is falsely supposed to belong especially to the cultivation of the soil . Why is it that the farmer believes , why should any one believe , in ...
... possible proportion , that uncertainty which always attaches to human enterprises , and which is falsely supposed to belong especially to the cultivation of the soil . Why is it that the farmer believes , why should any one believe , in ...
Página 20
... possible place in our calculations , by a careful avoidance of every condition which may place our crops at the mercy of that most uncertain of all things- the weather ; and especially should this be the case , when the very means for ...
... possible place in our calculations , by a careful avoidance of every condition which may place our crops at the mercy of that most uncertain of all things- the weather ; and especially should this be the case , when the very means for ...
Página 24
... possible . The water of the first sort , on the other hand , should be arrested by every device within our reach . If the land is steep , the furrows in plowing should be run horizontally along the hill , to prevent the escape of the ...
... possible . The water of the first sort , on the other hand , should be arrested by every device within our reach . If the land is steep , the furrows in plowing should be run horizontally along the hill , to prevent the escape of the ...
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Draining for Profit, and Draining for Health George E 1833-1898 Waring Sin vista previa disponible - 2015 |
Términos y frases comunes
acre agricultural allow basin bottom brick bushels carried cause cents clay collars commenced condition connection considerable contour lines cost course covered crop cultivation deposit depth discharge diseases distance ditch drainage dyke earth effect Ensilage evaporation fall Farm farmer feet deep fever field fifth column filled flow foot four feet Gisborne grade ground Hackensack River heat heavy rain houses improvement inches joints kiln labor laid land lateral drains laying length less lower main drain malarious manure marsh matters moisture muddy water nearly necessary obstruction operation outlet particles pipes placed plants plow porous practice prevent quantity rain-fall removed result retentive roots salt marsh saturated season sewage sewers shown in Fig side silt silt-basin slope soakage soil spring stakes steepest descent stone subsoil sufficient surface tide tile tile-draining tion typhoid fever undrained upper end whole width