Draining for Profit: And Draining for HealthOrange Judd Company, 1890 - 252 páginas |
Dentro del libro
Resultados 1-5 de 44
Página 9
... prevented , by a wet subsoil , from sending down its roots below the reach of the sun's heat , where it would find . even in the dryest weather , sufficient moisture for a 1 * LAND TO BE DRAINED AND THE REASONS WHY . 9.
... prevented , by a wet subsoil , from sending down its roots below the reach of the sun's heat , where it would find . even in the dryest weather , sufficient moisture for a 1 * LAND TO BE DRAINED AND THE REASONS WHY . 9.
Página 12
... prevent there being passages between " them , owing to which circumstance soil in the mass is " always more or less porous . If , however , we proceed to " examine one of the smallest particles of which soil is “ made up , we shall find ...
... prevent there being passages between " them , owing to which circumstance soil in the mass is " always more or less porous . If , however , we proceed to " examine one of the smallest particles of which soil is “ made up , we shall find ...
Página 17
... prevent the free escape of water . The surface soil is of a lighter or more open character , because of the cultivation it has received , or of the decayed vegetable matter and the roots which it contains . In such land the subsoil is ...
... prevent the free escape of water . The surface soil is of a lighter or more open character , because of the cultivation it has received , or of the decayed vegetable matter and the roots which it contains . In such land the subsoil is ...
Página 22
... — is within a few inches of the surface , preventing the natural descent of roots , and , by reason of the small space to re- ceive fresh rains , causing an interruption of work for 23 DRAINING FOR PROFIT AND HEALTH . 22.
... — is within a few inches of the surface , preventing the natural descent of roots , and , by reason of the small space to re- ceive fresh rains , causing an interruption of work for 23 DRAINING FOR PROFIT AND HEALTH . 22.
Página 24
... prevent the escape of the water over the surface , and to allow it to descend readily into the ground Steep grass lands may have frequent , small , horizontal ditches for the same purpose . If the soil is at all heavy , it should not ...
... prevent the escape of the water over the surface , and to allow it to descend readily into the ground Steep grass lands may have frequent , small , horizontal ditches for the same purpose . If the soil is at all heavy , it should not ...
Otras ediciones - Ver todas
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