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 vi
... furrow - slice and dust blanket . 84 84 stone . 35 Pervious mass of soil over a layer of impervious clay or 36 How flowing wells occur . 37 Plan of farmstead with road on north . 85 86 101 38 Plan of farmstead with road on east and ...
... furrow - slice and dust blanket . 84 84 stone . 35 Pervious mass of soil over a layer of impervious clay or 36 How flowing wells occur . 37 Plan of farmstead with road on north . 85 86 101 38 Plan of farmstead with road on east and ...
Página x
... furrows . Flooding from ditch running down the slope . Location of drains to intercept seepage water . The road of ... furrow - slice toward the center of the road ... 315 200 Reversible road machine carrying dirt from deep road- side ...
... furrows . Flooding from ditch running down the slope . Location of drains to intercept seepage water . The road of ... furrow - slice toward the center of the road ... 315 200 Reversible road machine carrying dirt from deep road- side ...
Página 51
... furrow - slice . The terms " dust blanket and dirt mulch are often used to indicate that upper por- tion of the furrow - slice which is kept open and mellow , as by intercultural tillage , that the soil moisture may not readily rise ...
... furrow - slice . The terms " dust blanket and dirt mulch are often used to indicate that upper por- tion of the furrow - slice which is kept open and mellow , as by intercultural tillage , that the soil moisture may not readily rise ...
Página 73
... furrow - slice , and that part of the subsoil immediately beneath . While the roots which 6- Figure 18. At 6 are shown the stem roots of a corn plant nearly ready to tassel out . All these roots have their origin in the base of the stem ...
... furrow - slice , and that part of the subsoil immediately beneath . While the roots which 6- Figure 18. At 6 are shown the stem roots of a corn plant nearly ready to tassel out . All these roots have their origin in the base of the stem ...
Página 74
... furrow - slice and upper layers of subsoil . Since the furrow - slice and the part of the subsoil just below it are the portions of the soil which supply to the roots of crops the most congenial and richest feeding zone , the aim of the ...
... furrow - slice and upper layers of subsoil . Since the furrow - slice and the part of the subsoil just below it are the portions of the soil which supply to the roots of crops the most congenial and richest feeding zone , the aim of the ...
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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 amount of water animals better biped bottom brace building canal capillary capillary action capstan carry cement cents clay 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 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 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