About a third of all farmers and growers had some form of formal plan, and others were taking actions (such as excluding stock from waterways, creating riparian strips, putting in sediment traps, and poplar planting) without a formal plan.
The goal now was to support and encourage the rest of the growing and farming community to adopt the principles from the action plan.
"As an industry, we see the aims of the ... plan as completely achievable," he said.
Irrigation NZ chairwoman Nicky Hyslop said the majority of irrigators already had FEPs in place or were preparing them.
DairyNZ strategy and investment leader — responsible dairy Dr David Burger said the initiative was significant because it had been developed and agreed on between central and local government and the primary sector.