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 |
Dentro del libro
Resultados 1-5 de 45
Página 21
... grass . " But the reverse , all grass is flesh , is not true , for the animal is not able to use all the compounds of the plant . The part used by the animal depends on several things . In some plants the compounds are much more easily ...
... grass . " But the reverse , all grass is flesh , is not true , for the animal is not able to use all the compounds of the plant . The part used by the animal depends on several things . In some plants the compounds are much more easily ...
Página 52
... grasses and larger plants , develop in or on ex- posed masses of mixed minerals , and a soil with decay- ing vegetable matter is formed which provides a home hospitable to most of the flowering plants . Soils differ as to the size of ...
... grasses and larger plants , develop in or on ex- posed masses of mixed minerals , and a soil with decay- ing vegetable matter is formed which provides a home hospitable to most of the flowering plants . Soils differ as to the size of ...
Página 65
... grasses . In the timber sections they carry a heavy growth of trees , usually of the deciduous class . Color is not a very good general index to the richness of a soil ; some rich soils are black , others red , yellow or other lighter ...
... grasses . In the timber sections they carry a heavy growth of trees , usually of the deciduous class . Color is not a very good general index to the richness of a soil ; some rich soils are black , others red , yellow or other lighter ...
Página 66
... grasses and sedges grow . Dead trees , falling down , often become a part of the mass of peat in these low places , and mosses , such as sphagnum , form a large part of the peaty sub- stance . Peat bogs , natural meadows , and muskegs ...
... grasses and sedges grow . Dead trees , falling down , often become a part of the mass of peat in these low places , and mosses , such as sphagnum , form a large part of the peaty sub- stance . Peat bogs , natural meadows , and muskegs ...
Página 74
... grasses also penetrate to similar depths . Clover roots go a little deeper than the roots of the grasses and grains , while the roots of some perennial field crops , like alfalfa , under unusually dry conditions , may go to a depth of ...
... grasses also penetrate to similar depths . Clover roots go a little deeper than the roots of the grasses and grains , while the roots of some perennial field crops , like alfalfa , under unusually dry conditions , may go to a depth of ...
Otras ediciones - Ver todas
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