Farm Development: An Introductory Book in Agriculture, Including a Discussion of Soils, Selecting & Planning Farms, Subduing the Fields, Drainage, Irrigation, Roads, Fences, Together with Introductory Chapters Concerning Farm Business, and the Relations of General Science to AgricultureOrange Judd Company, 1910 - 391 páginas |
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Página ix
... easily from washing . 126 Ditch made with spade through peaty soil .. 127 Narrow , deep ditch with braced poles protecting the sides from washing . Page 223 224 224 224 225 225 225 226 128 Plat of pond draining into drainage well . 226 ...
... easily from washing . 126 Ditch made with spade through peaty soil .. 127 Narrow , deep ditch with braced poles protecting the sides from washing . Page 223 224 224 224 225 225 225 226 128 Plat of pond draining into drainage well . 226 ...
Página 21
... easily broken up than in others , and the animal secures a greater amount of available energy than from those plants where a considerable portion of energy is not digested or where the process of digestion consumes much of the energy ...
... easily broken up than in others , and the animal secures a greater amount of available energy than from those plants where a considerable portion of energy is not digested or where the process of digestion consumes much of the energy ...
Página 35
... easily decay , vegetation has not been able to grow and the surface is still bare and not hospitable to plants . Between these two extremes , where soils have been made of clay or of a mixture of clay and sand and other materials ...
... easily decay , vegetation has not been able to grow and the surface is still bare and not hospitable to plants . Between these two extremes , where soils have been made of clay or of a mixture of clay and sand and other materials ...
Página 40
... easily handled with cultivating implements . Assorted till formed poor soils . - Wherever the water assorted the great body of materials drifted along by the glacier , some poor soils are found . Layers of sand left at the surface give ...
... easily handled with cultivating implements . Assorted till formed poor soils . - Wherever the water assorted the great body of materials drifted along by the glacier , some poor soils are found . Layers of sand left at the surface give ...
Página 41
... easily decaying rocks , or , as north of Lake Superior and in mountainous regions , are of granite , trap rock or sand rock uncovered with soil ; others were formed as clay layers and rock ledges . The forces still acting on the soil ...
... easily decaying rocks , or , as north of Lake Superior and in mountainous regions , are of granite , trap rock or sand rock uncovered with soil ; others were formed as clay layers and rock ledges . The forces still acting on the soil ...
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Farm Development; An Introductory Book in Agriculture, Including a ... W. M. Hays Sin vista previa disponible - 2017 |
Términos y frases comunes
acre agricultural animals better biped bottom brace building canal capillary capillary action capstan carry cement cents clay clover construction corn corner post cost crop rotation crops cubic yard cultivation culverts datum deep depth drain tiles drainage earth engine expense farm home farmers farmstead feet fence fields flood water flow Fresno scraper furrow-slice furrows gate glacial glacier grade grain Grass gravel ground water height Illustrated inches instrument irrigation labor lake Lake Agassiz layer limestone low area macadam material mile Minnesota Minnesota river Mississippi river mixed moisture necessary open ditch outlet particles peat plow practical profitable rain rainfall reversible road machine river road roller roadside roadway rock roots rotation rural sand schools showing shown in Figure side soil spade station stone stream stumps subsoil tile drains tion tivated trees wagon wheat wire fence