| Show SAVING FERTILITY OF SOIL atine arne prudence which haw resul resulted ted in conservation of natural ro ile sources applies to land the same prudence which has resulted s la to the present activity in con er ot at natural resources forests forest water power powers irrigation etc points also to the equally if not morz more imar imbor tant taut conservation of the fertility ot of the boll soil the fari farmers pers and fruit growers th eoll soil are the producers produce ra the mainstay of the wealth of the country their work goes for naught however it the eull soil Is that tta its fertility li ii bing b ing impaired except where renewed uy by fer ter til utilizing izing cannot be questioned e eich lich crop takes a portion ot at the bolls s ser oer land which baa has icet lost its fertility or car even become impaired not only will not produce me generously but the product will be of inferior quality and unless the needed element of fertility la I 1 compensated tor for the crop will not t be ready for marketing la in time to obtain the higher prices otherwise obtainable tai tor for the crop has any attraction it behoove behooves the farmer to both consider and act the deficient element may bo be potash add acid cr SU rogen usually it Is the Is last 3 t i hamed named for that reason its a I 1 tion generally produces better ri returns turns than that of any other plant food for instance A cereal crop with a cam complete fertilizer excepting except lie the nitrogenous element yielded bit 58 59 centa cents net profit but the same cop and equal area with the addition of nitrate of soda yielded 9 15 net profit the in crease in net profit due to its use haa has been la in actual experience as high as with early cabbage and tl 60 with celery for pounds of nitrate 0 ot t soda odd as it may seem the richer the toll 11 and the better its condition the larger the amount of at nitrate that mav profitably be used upon it 11 in a certain western county where the soil la Is enormously productive it la Is found nee essary to let halt the land lie fallow every other year otherwise the crops would boon soon fall the bureau of sells of the state ot of washington baa has reached the conclusion that thia this tall fall ure la Is due to the fact that each grow ing plant throws off into the soil ex L rca poisonous to itself and this must be destroyed either by rest ot of the land or by the use may be termed plant food in order to main tain the fertility of the coil soil nitrate of soda is the plant food which bobyl ates the necessity tor for otherwise enforced idleness the resulting prof it you can easily estimate |
