Pamphlets on Conservation of Natural Resources, Volumen5U.S. Government Printing Office, 1912 |
Dentro del libro
Resultados 6-10 de 100
Página 67
... supply , water works and sewage disposal . Pending the beginning of actual engineer- ing investigation of a water power site , the commission has studied the water power laws of all the states of the Union to the end that ac- curate ...
... supply , water works and sewage disposal . Pending the beginning of actual engineer- ing investigation of a water power site , the commission has studied the water power laws of all the states of the Union to the end that ac- curate ...
Página 102
... supply would seem adequate for the world's demands for many centuries . The deposit underlies more than a million acres , and in the Strass furt district , where it was discovered some fifty years ago , the total thickness of the ...
... supply would seem adequate for the world's demands for many centuries . The deposit underlies more than a million acres , and in the Strass furt district , where it was discovered some fifty years ago , the total thickness of the ...
Página 103
... supply a matter of concern to the railroads , if nitrates may be drawn from the air ? Unfortunately , there is work for them to do in assisting the farmer to adapt condi- tions in his soil to the needs of these bacteria . For some ...
... supply a matter of concern to the railroads , if nitrates may be drawn from the air ? Unfortunately , there is work for them to do in assisting the farmer to adapt condi- tions in his soil to the needs of these bacteria . For some ...
Página 104
... supply of lime is essentially a transportation question . Lime is one of the most plentiful of the elements ... supply . Only about one per cent of the supply is available to the crop of any one year — that is , in their hunt for ...
... supply of lime is essentially a transportation question . Lime is one of the most plentiful of the elements ... supply . Only about one per cent of the supply is available to the crop of any one year — that is , in their hunt for ...
Página 105
... supply of a limiting element , and as successive crop- pings reduce this supply , the crop falls off until we have the four - bushel wheat crop , the ten - bushel corn crop , the third - of - a - bale cotton crop , which marks the ruin ...
... supply of a limiting element , and as successive crop- pings reduce this supply , the crop falls off until we have the four - bushel wheat crop , the ten - bushel corn crop , the third - of - a - bale cotton crop , which marks the ruin ...
Términos y frases comunes
acre Address agricultural American annual Applause Association average believe better cent Chairman child church City Kansas City clubs coal commission conservation movement coöperative corn cost crop cultivation delegates disease dollars efficiency Executive Committee fact farm farmers Federal fire waste forest forestry Gifford Pinchot Government human important improved increase industry interest Kansas City Kansas labor land laws legumes live loss Louisiana ment methods million Missouri movement National Conservation Congress natural resources nitrogen Olathe organization Pennsylvania phosphate phosphoric acid phosphorus plant plowing population postal savings system practical present President problem profit proper protection railroads railways represent Richard Lieber roads rural Secretary seed-bed society soil fertility supply things timber tion transportation tuberculosis typhoid fever United vital water power wheat women yield York