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 19
... chlorophyll , as it is called , is made of small oblong bodies called chloroplasts , colored green with a coloring matter termed chlorophyll . These chlorophyll bodies do not appear in plants that are kept in the dark . Seeds and roots ...
... chlorophyll , as it is called , is made of small oblong bodies called chloroplasts , colored green with a coloring matter termed chlorophyll . These chlorophyll bodies do not appear in plants that are kept in the dark . Seeds and roots ...
Página 20
... chlorophyll bodies in the leaves , aided by the sunlight , is very important . The leaves of plants are very complex workshops , or labora- tories , and here the substances taken from the soil and air by the plant are brought together ...
... chlorophyll bodies in the leaves , aided by the sunlight , is very important . The leaves of plants are very complex workshops , or labora- tories , and here the substances taken from the soil and air by the plant are brought together ...
Página 69
... chlorophyll . The air enters through these stomata , passes on in between the chlorophyll- bearing cells , and by osmosis gets into the cells contain- ing chlorophyll . Here the carbon dioxide ( CO2 ) of the air is broken up through the ...
... chlorophyll . The air enters through these stomata , passes on in between the chlorophyll- bearing cells , and by osmosis gets into the cells contain- ing chlorophyll . Here the carbon dioxide ( CO2 ) of the air is broken up through the ...
Página 70
... chlorophyll bodies as little manufac- tories of starch . To decompose carbon dioxide and to build up starch out of carbon and water , requires energy . This the plant obtains from the sunlight . When the animal consumes the plant , it ...
... chlorophyll bodies as little manufac- tories of starch . To decompose carbon dioxide and to build up starch out of carbon and water , requires energy . This the plant obtains from the sunlight . When the animal consumes the plant , it ...
Página 385
... Chlorophyll 69 Alkali soils .. 66 , 138 , 266 Cities aid in road building . 283 excess of , washed out by irri- Cities , good roads help . 279 gation 267 Classification of soils . 53 Ancient Lake Agassiz . 44 mechanical 63 Animals ...
... Chlorophyll 69 Alkali soils .. 66 , 138 , 266 Cities aid in road building . 283 excess of , washed out by irri- Cities , good roads help . 279 gation 267 Classification of soils . 53 Ancient Lake Agassiz . 44 mechanical 63 Animals ...
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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