Draining for Profit, and Draining for HealthOrange Judd Company, 1902 - 252 páginas |
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Página 7
... particles of soil are filled with water , ( whether from rain or from springs , ) within less than four feet of the surface of the ground , except during and immediately after heavy rains , require draining . Of course , the particles ...
... particles of soil are filled with water , ( whether from rain or from springs , ) within less than four feet of the surface of the ground , except during and immediately after heavy rains , require draining . Of course , the particles ...
Página 8
... particles , and its place is taken by air , while the parti cles hold , by attraction , the moisture necessary to a healthy condition of the soil , There are vast areas of land in this country which do not need draining . The whole ...
... particles , and its place is taken by air , while the parti cles hold , by attraction , the moisture necessary to a healthy condition of the soil , There are vast areas of land in this country which do not need draining . The whole ...
Página 12
... particles of all shapes and sizes , from stones and peb- ❝bles down to the finest powder ; and , on account of their extreme irregularity of shape , they cannot lie so close to 66 one another as to prevent there being passages between ...
... particles of all shapes and sizes , from stones and peb- ❝bles down to the finest powder ; and , on account of their extreme irregularity of shape , they cannot lie so close to 66 one another as to prevent there being passages between ...
Página 13
... particle in which they occur , have no direct " connection with the pores of the surrounding particles . " Let us now , therefore , trace the effect of this arrangement . " In Fig . 1 we perceive that " these canals and pores are " all ...
... particle in which they occur , have no direct " connection with the pores of the surrounding particles . " Let us now , therefore , trace the effect of this arrangement . " In Fig . 1 we perceive that " these canals and pores are " all ...
Página 14
... particle of soil which " touches it is well supplied " with this necessary in- " gredient . This , then , is " the ... particles adhering together in the 66 familiar form of mud . " 66 As plants grow under the same conditions , as to.
... particle of soil which " touches it is well supplied " with this necessary in- " gredient . This , then , is " the ... particles adhering together in the 66 familiar form of mud . " 66 As plants grow under the same conditions , as to.
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
accumulated acre agricultural allow basin bottom brick bushels carried cause Central Park cents chapter clay collars commenced condition connection considerable contour lines cost course covered crop cultivation deposit depth discharge diseases distance ditch drainage dyke earth effect 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 roots salt marsh saturated season sewage sewers shown in Fig side silt silt-basin slope soakage spring stakes steepest descent stone subsoil sufficient surface tide tile tile-draining tion typhoid fever undrained upper end vegetable whole width