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 47
Página vi
... showing origin of Minnehaha falls . 15 Valley of a glacial river .. 16 Gorge formed by cutting of glacial floods . 18 Stem roots of corn plant nearly ready to tassel . Crown and stem roots of mature wheat plant .. Pot containing ...
... showing origin of Minnehaha falls . 15 Valley of a glacial river .. 16 Gorge formed by cutting of glacial floods . 18 Stem roots of corn plant nearly ready to tassel . Crown and stem roots of mature wheat plant .. Pot containing ...
Página vii
... showing records of 1910 crops . 107 108 109 110 111 112 113 44 Tools used for clearing land . 118 45 Capstan stump ... showing drainage of a 480 - acre farm ... 171 74 Common drain tiles . 172 75 Union tiles .. 172 77 79 76 Collared ...
... showing records of 1910 crops . 107 108 109 110 111 112 113 44 Tools used for clearing land . 118 45 Capstan stump ... showing drainage of a 480 - acre farm ... 171 74 Common drain tiles . 172 75 Union tiles .. 172 77 79 76 Collared ...
Página viii
... showing the depth of the ditch as finally calculated .. Cross section of field showing elevation of soil above the datum plane .. 197 197 How water seeks the drains . 198 88 Showing disposition of earth handled with road machine and ...
... showing the depth of the ditch as finally calculated .. Cross section of field showing elevation of soil above the datum plane .. 197 197 How water seeks the drains . 198 88 Showing disposition of earth handled with road machine and ...
Página ix
... showing slope of banks .. 122 Proper form of surface ditch where earth is firm . 123 Ditch made with capstan ditching plow .. 124 Angle of repose where ditch banks have caved in . 125 Ditch in a soil which caves in easily from washing ...
... showing slope of banks .. 122 Proper form of surface ditch where earth is firm . 123 Ditch made with capstan ditching plow .. 124 Angle of repose where ditch banks have caved in . 125 Ditch in a soil which caves in easily from washing ...
Página xi
... showing earth as left by elevating - grader in a ridge .. 320 207 208 Road as left by Fresno or wheel scraper . Wide road with heavy side ditches .. 321 321 209 Use of wheel scrapers and plows in grading a cut through a hill .. 324 210 ...
... showing earth as left by elevating - grader in a ridge .. 320 207 208 Road as left by Fresno or wheel scraper . Wide road with heavy side ditches .. 321 321 209 Use of wheel scrapers and plows in grading a cut through a hill .. 324 210 ...
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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