Federated Farmers Hawke's Bay president Will Foley said he thought the agricultural contribution to the GDP could be less for the 2014-15 financial year because other exports were increasing at a faster pace.
"It isn't unexpected with the downturn in dairy and lamb prices," he said.
"Hopefully it will bottom out of those cycles and we will see only upward movement."
Mr Foley said the industry was seeing an increasing equity with farming intensifying.
"The activity that you see on the road and rail going to the port, it seems to be increasing all the time," he said.
"Because of this increasing activity and, if we do see an uplift in price, agriculture should see a good increase in contribution to the GDP."
Hawke's Bay was one of the 11 regions in the country which grew in the 2014-15 financial year, with its GDP accounting for 2.7 per cent of New Zealand's overall GDP.
Economic Development Minister Steven Joyce said regional economies across New Zealand were continuing to fluctuate with the fortunes of their major industries. "The Government will continue working through the Business Growth Agenda and the new Regional Growth Programmes to help build on each region's strengths, attract new investment, and diversify their economies," Mr Joyce said.