Saama said that year-to-date combine harvester sales were down 15% from 209 in 2015 to 178 in 2016.
Saama chairman Lucas Groenewald said that "after the worst drought in years, bankers are cautious about financing the purchase of agricultural equipment and farmers too are reluctant to go into debt until there is more certainty with their crops".
"Nevertheless, the underlying sentiment in the market is positive, if cautious," he added.
Staying positive, Groenewald noted that "good rains have fallen in many of the eastern parts of the country and some of the dams have started filling".
"This augurs well for the dryland farmers as well as for those using irrigation on a supplementary basis. Some areas in the west of the country still need rain if they are going to produce satisfactory summer crops."