 | Eben Eugene Rexford - 1903 - 324 páginas
...application. First Principles of Soil Fertility By ALFRED VIVIAN. There is no subject of more vital importance to the farmer than that of the best method...of maintaining the fertility of the soil. The very evidenv decrease in the fertility of those soils which have been under cultivation for a number of... | |
 | Samuel Fraser - 1905 - 216 páginas
...application. First Principles of Soil Fertility By ALFRED VIVIAN. There is no subject of more vital importance to the farmer than that of the best method...agriculture of the future must be based upon more rational practices than those which have been followed in the past. We have felt for some time that... | |
 | Lucius Lincoln Van Slyke - 1907 - 250 páginas
...application. First Principles of Soil Fertility By ALFRED VIVIAN. There is no subject of more vital importance to the farmer than that of the best method...agriculture of the future must be based upon more rational practices than those which have been followed in the past, We have felt for some time that... | |
 | Frank Hurlbut Chittenden - 1907 - 304 páginas
...application. First Principles of Soil Fertility By ALFRED VIVIAN. There is no subject of more vital importance to the farmer than that of the best method...years, combined with the increased competition and Jhe advanced price of labor, have convinced the intelligent farmer that the agriculture of the future... | |
 | Willet Martin Hays - 1910 - 424 páginas
...application. First Principles of Soil Fertility By ALFRED VIVIAN. There is no subject of more vital importance to the farmer than that of the best method...of maintaining the fertility of the soil. The very evidenv decrease in the fertility of those soils which have been under cultivation for a number of... | |
 | Andrew Samuel Fuller - 1911 - 72 páginas
...application. First Principles, of Soil Fertility • By ALFRED VIVIAN. There is no subject of more vital importance to the farmer than that of the best method...agriculture of the future must be based upon more rational practices than those which have been followed in the past. We have felt for some time that... | |
 | Louis Hermann Pammel - 1911 - 318 páginas
...application. First Principles of Soil Fertility By ALFRED VIVIAN. There is no subject of more vitai importance to the farmer than that of the best method...agriculture of the future must be based upon more rational practices than those which have been followed in the past. We have felt for some time that... | |
 | Thomas Shaw - 1911 - 392 páginas
...application. First Principles of Soil Fertility By ALFRED VIVIAN. There is no subject of more vital importance to the farmer than that of the best method...agriculture of the future must be based upon more rational practices than those which have been followed in the past. We have felt for some time that... | |
 | Henry Stewart - 1911 - 296 páginas
...application. First Principles of Soil Fertility By ALFRED VIVIAN. There is no subject of more vital importance to the farmer than that of the best method...agriculture of the future must be based upon more rational practices than those which have been followed in the past. We have felt for some time that... | |
 | Manly Miles - 1911 - 214 páginas
...application. First Principles of Soil Fertility By ALFRED VIVIAN. There is no subject of more vital importance to the farmer than that of the best method...agriculture of the future must be based upon more rational practices than those which have been followed in the past. We have felt for some time that... | |
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ital importance to the farmer than that of the best method of maintaining the fertility of the soil. The very evident decrease in the fertility of those soils which have been under cultivation for a number of years, combined with the increased competition... 
