01304naa a2200217 a 450000100080000000500110000800800410001910000190006024500830007926000090016230000160017152005540018765300200074165300410076165300280080265300320083065300420086265300440090470000180094877301200096610048202011-05-27       1994    bl uuuu     u00u1 u    #d1 aMcGRATH, D. E.  aAutomated systems to optimize productive capacity of a field for a given crop.  c1994  ap. 397-402.  aA practical, economical method of determining optimum rates of fertilizer and applying these rates to a specific crop in all parts of a specific field has received considerable attention. As a response to this interest an automated system has been designed and constructed consisting of: automated soil sampler and packaging system; automated workstation for soil analysis; an expert software system to convert the soil analysis; and supporting dats into a fertilizer application program; an automated fertilizer applicator to carry out the program.  aAgroinformatics  aComputadores aplicados a agricultura  aComputer in agriculture  aInformatica na agropecuaria  aInformation technology in agriculture  aTecnologia de informacao na agricultura1 aSKOTNIKOV, A.  tIn: INTERNATIONAL CONFERENCE, 5., 1994, Orlando. Computers in agriculture: proceedings. St. Joseph, MI: ASAE, 1994.