The map below is a graph of the number of Monsanto Publications by year and field. A Web of Science search for articles with the organization Monsanto listed was conducted. Over 7000 articles were found. The mapping software Reseau-Lu was used to analyze this data and generate the map.
Before 1985, research conducted by the Monsanto company was mainly in the area of Multidisciplinary Chemistry (the burgandy bar on the bottom). There was also a steady amount of Chemical Engineering research from 1973 to 1985, with a slight dip in 1977. Polymer science research started in 1973 and peaks in 1984. This time period seems to be distinctly pre-Roundup Ready, and it is likely that Monsanto was focused on other research interests before the biotechnology/genetic engineering boom that would occur in the late 1980s.
The most research conducted by Monsanto occurs between the years of 1986 - 2000. 1986 is the first year in a series of extensive biochemistry and molecular biology research. Multidisciplinary chemistry remained primarily consistent with levels from the previous time period. Also on the rise was research into cell biology and the plant sciences. A substantial increase in biochemistry, molecular biology, cell biology and plant science research suggests that Monsanto was heavily researching new genetically engineered plants during this time period. The first Roundup Ready crops were developed in 1996, so it is reasonable to hypothesize that much of the research during the ten years prior went into the development of this biotechnology.
After 2000, attention shifts toward plant sciences, agriculture and agronomy. In 2004 in particular there is a huge spike in agriculture, dairy and animal science. More research was conducted in 2004 in this area than in the subsequent years combined. A slightly less noticable increase also occured in the area of food science and technology. There is little focus on chemistry and biochemistry during this time period, an interesting contrast to the previous two periods, which were heavily dominated by the two. It appears that Monsanto has shifted their research focus from the development of Roundup Ready products to the analysis of their effectiveness, and what changes are needed to better improve their genetically engineered crops. This shift also seems inline with Monsanto's new PR campaign. You can read more about this here (link to monsanto players page).
This cluster map was generated using Issue Crawler. This software takes a small group of seeds (no more than 5 or so) and "crawls" through each site to find hyperlinks to other websites. This generates a clustering of websites when a particular site is referenced by more than one seed. The map below started with the seeds prwatch.org, organicvalley.coop, freywine.com, thomas.loc.gov, non-gm-farmers.com. You can click the name of the website to be taken there, or you can click the bubble itself to see some statistics about the node.