OM Financial said farm insolvencies could "explode" if farm prices fell further.
In its monthly report, the New Zealand brokerage said the average dairy farmer was likely to post a further loss this coming season, leading to deterioration on the liability side of farmer's balance sheets.
At the same time, the asset side of dairy farmers' balance sheets was being eroded by weakness in land and livestock prices, OM Financial said.
The Real Estate Institute of NZ's (REINZ) Dairy Farm Price index fell by 24.1 per cent, year on year, in April.
"This represents approximately 70 per cent of total dairy farmer assets - livestock comprise a further 10 per cent and plant and equipment a further 3 per cent - and given its remarkable correlation with the GlobalDairyTrade Price Index, we see scope for further double-digit declines in land prices over the coming season," OM Financial said.