Draining for Profit: And Draining for HealthOrange Judd Company, 1890 - 252 páginas |
Dentro del libro
Resultados 1-5 de 28
Página 7
... four feet of the surface of the ground , except during and immediately after heavy rains , require draining . Of course , the particles of the soil cannot be made drv nor should they be ; but , although they should be moist themselves ...
... four feet of the surface of the ground , except during and immediately after heavy rains , require draining . Of course , the particles of the soil cannot be made drv nor should they be ; but , although they should be moist themselves ...
Página 9
... four feet in the earth , may collect water at its bottom , shortly after a rain ; this is a sure sign of the need of draining . All tests of the condition of land as to water , such as trial pits , etc. , should be made , when ...
... four feet in the earth , may collect water at its bottom , shortly after a rain ; this is a sure sign of the need of draining . All tests of the condition of land as to water , such as trial pits , etc. , should be made , when ...
Página 10
... four feet of the soil , and be removed from below . That first falling contains the fertilizing matters washed out from the air , and in its de- scent through the ground , these are given up for the use of plants ; and it performs other ...
... four feet of the soil , and be removed from below . That first falling contains the fertilizing matters washed out from the air , and in its de- scent through the ground , these are given up for the use of plants ; and it performs other ...
Página 23
... feet from the surface , leaving the spaces between the particles of all of the soil above it filled with air instead ... four inches of drained soil contains free space enough to receive a rain - fall one inch in depth , and , by the same ...
... feet from the surface , leaving the spaces between the particles of all of the soil above it filled with air instead ... four inches of drained soil contains free space enough to receive a rain - fall one inch in depth , and , by the same ...
Página 25
... four or five feet , freely though less readily than the lighter loams . Now , imagine the drains to be closed up , leaving no out- let for the water , save at the surface . This amounts to a raising of the dam to that height , and ...
... four or five feet , freely though less readily than the lighter loams . Now , imagine the drains to be closed up , leaving no out- let for the water , save at the surface . This amounts to a raising of the dam to that height , and ...
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