There is strong interest in three seats on the board of the Ballance Agri-nutrients fertiliser co-op, which are up for re-election.
Four candidates are contesting the South Island ward to replace Peter McDougal, who's not standing again.
In the North Island: Ballance's deputy chairman, David Hurst and fellow director Richard Jolly are each being challenged by two other candidates.
The company thinks the volatility in the international fertiliser market that caused prices to soar and then fall again has heightened farmer interest in the elections this year.
Voting will take place this month.