{
   "title": "List of References to Literature on Potash as a Plant Nutrient",
   "first-renewed-issue": "none",
   "first-renewed-issue-source": "database",
   "first-renewed-contribution": "none",
   "first-renewed-contribution-source": "database",
   "responsibility": {
      "authorized": "Mark Ockerbloom, John, 1966-",
      "contact": "ockerblo@pobox.upenn.edu"
   },
   "acknowledgement": 
      "Thanks to Shelton Henderson for copyright research on this title.",
   "last-updated": "2022-05-20"
}