The Tigers were all out for 90 in their second innings with the Proteas claiming a mammoth 333-run victory before lunch on the fifth day to a one-nil series lead in the two-match series.
However, Du Plessis was not happy with the conditions at Senwes Park, the surface flat and slow from the first day with the Proteas skipper saying they asked for more pace and bounce.
The Proteas captain wants the surface for the second Test in Bloemfontein, starting on Friday, to have more grass and offer pace and bounce for his bowlers.
Du Plessis said after the game in Potchefstroom: “I was really disappointed with the conditions. They were not what we asked for. Hopefully there will be a bit more grass on the pitch in Bloemfontein.
“I have always been a guy that’s very honest in reflection. If it was a good wicket, I praise and I give credit.
“But conditions-wise when you play countries like Bangladesh, it is important that you try and make sure whatever you get from the wicket gives your team some sort of advantage.
“There wasn’t much advantage for any team in these conditions. The good thing was that the groundsman said the wicket won’t spin and for three-and-a-half days or probably four days, the wicket didn’t spin off the straight so that was pleasing to see. We got that right.”