This is not an accurate statement to be polite. Florida, Florida St., Georgia, Tennessee, Alabama, Mississippi St., LSU, Texas A&M, Clemson, South Carolina, Duke, North Carolina, Oklahoma, Arizona St., USC, UCLA, Stanford, Virginia, & Virginia Tech all have natural turf fields and are major programs. The majority of schools with Fieldturf do not have Ag programs and don't have the knowledge or resources (qualified people) to produce a quality natural turf field.
The field at Ross-Ade was re-sodded prior to this season with Latitude 36 bermuda, a "cold tolerant" variety of bermuda which has vastly improved the surface from when I was a student. It is also over-seeded with perennial rye mid-season for aesthetics and density. While attending Purdue, I worked for the athletic department on the Ross-Ade turf in the early 2000's and can tell you the field has improved ten fold since then. To say Purdue doesn't keep up the field is preposterous. Maybe take a look at PUSportsTurf on Twitter to see some of the turf management that is involved with our natural turf playing surfaces at our fine Alma Mater. #grasscantakemore may also be interesting to some. Turf management is constantly evolving and natural grass fields are benefiting from improved genetic varieties and University research studies.
I understand that some people like the look of Fieldturf. However, a well maintained natural turf field is a safer surface and does not impact the game negatively what-so-ever. Did playing on Fieldturf help Purdue @ Minnesota this year? Football is better on natural turf period. Purdue has an outstanding turf management program and facility maintenance team in place with a legend in William Daniel. To see Fieldturf inside Ross-Ade would be a real shame considering all our resources and expertise.