00620cam a22001572  450000500170000000800410001704000240005808200200008210000510010224500910015326000400024430000450028450400410032965000240037070000680039420181209225710.0970711s1949    pauabc   b    000 0 eng    aDLCcDLCdBD-DhBPA   a331.7bTHI 19771 aThorne, David Wynne,d1908- [from old catalog]00aIrrigated soils, their fertility and management /cby D. W. Thorne and H. B. Peterson.  aPhiladelphiab[Blakiston Co.,c1977  aix, 288 p.billus., ports., map.c27 cm.  aBibliography at end of each chapter. 0aIrrigation farming.1 aPeterson, Howard Boyd,d1912- [from old catalog]ejoint author.