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 100
Página vii
... land . 118 45 Capstan stump puller . 119 46 Use of windlass and " stump hook " or " root plow " 120 47 Methods of hitching stump pullers .. 122 48 Mud boat .. 128 49 Low or handy wagon . 50 Stone boat .. 51 Peat hook . 52 Burning ...
... land . 118 45 Capstan stump puller . 119 46 Use of windlass and " stump hook " or " root plow " 120 47 Methods of hitching stump pullers .. 122 48 Mud boat .. 128 49 Low or handy wagon . 50 Stone boat .. 51 Peat hook . 52 Burning ...
Página ix
... land . Cross section of a pole drain in peaty land . 229 229 135 Drainage pumping station 230 136 Irrigation supply ditch carried across low areas and through land at grade .. 235 137 138 139 140 Method of fluming water supply across ...
... land . Cross section of a pole drain in peaty land . 229 229 135 Drainage pumping station 230 136 Irrigation supply ditch carried across low areas and through land at grade .. 235 137 138 139 140 Method of fluming water supply across ...
Página 6
... land is divided off into family farms , needing only occasional outside help , the production per square mile of farm homes and of high - type Americans is greatly increased . The larger values per acre of farm lands , the larger income ...
... land is divided off into family farms , needing only occasional outside help , the production per square mile of farm homes and of high - type Americans is greatly increased . The larger values per acre of farm lands , the larger income ...
Página 17
... land or cheaper labor , they can undersell us , we must find a still better machine or process and make profits by ... lands are losing their virgin productivity , some of our fields are becoming infested with weeds , and we must all ...
... land or cheaper labor , they can undersell us , we must find a still better machine or process and make profits by ... lands are losing their virgin productivity , some of our fields are becoming infested with weeds , and we must all ...
Página 34
... land surfaces . - The layers of the earth which are now exposed have been modified not only by the action of heat and cold , wind and water , but also by animals and plants . During recent geological times great changes in temperature ...
... land surfaces . - The layers of the earth which are now exposed have been modified not only by the action of heat and cold , wind and water , but also by animals and plants . During recent geological times great changes in temperature ...
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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