Draining for Profit: And Draining for HealthOrange Judd Company, 1890 - 252 páginas |
Dentro del libro
Resultados 6-10 de 37
Página 17
... matter and the roots which it contains . In such land the subsoil is wet , -almost constantly wet , - and the falling rain , finding only the surface soil in a condi- tion to receive it , soon fills this , and often more than fills it ...
... matter and the roots which it contains . In such land the subsoil is wet , -almost constantly wet , - and the falling rain , finding only the surface soil in a condi- tion to receive it , soon fills this , and often more than fills it ...
Página 20
... matter of theory . There is hardly a doubt that the development of plant food from refuse organic matter of all kinds ... matters to their mineral elements . The bacterium of nitrification is obviously one of the most important aids to ...
... matter of theory . There is hardly a doubt that the development of plant food from refuse organic matter of all kinds ... matters to their mineral elements . The bacterium of nitrification is obviously one of the most important aids to ...
Página 24
... matters which it has obtained from the air , -carbonic acid , ammonia and nitric acid , —are extracted from it , and held for the use of grow ing plants . Its fresh air , and the air which follows the de- scent of the water - table ...
... matters which it has obtained from the air , -carbonic acid , ammonia and nitric acid , —are extracted from it , and held for the use of grow ing plants . Its fresh air , and the air which follows the de- scent of the water - table ...
Página 25
... matters which it con- tains , but , on the contrary , washing away some of its finer and looser parts . The particles of the soil , instead of be- ing furnished , by absorption , with a healthful amount of moisture , are made unduly wet ...
... matters which it con- tains , but , on the contrary , washing away some of its finer and looser parts . The particles of the soil , instead of be- ing furnished , by absorption , with a healthful amount of moisture , are made unduly wet ...
Página 26
... matters , which it leaves at the point where it becomes a vapor , forming a crust that prevents the free entrance of air at those times when the soil is dry enough to afford it space for circulation . Instead of crumbling to the fine ...
... matters , which it leaves at the point where it becomes a vapor , forming a crust that prevents the free entrance of air at those times when the soil is dry enough to afford it space for circulation . Instead of crumbling to the fine ...
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