Horticulture New Zealand is advocating for a food security policy to balance the needs of rapidly growing urban areas, with the ''food bowls'' on their outskirts.
The organisation has launched its election manifesto outlining five key priorities for the new Government - biosecurity, food security, workforce capability, mandatory country of origin labelling, and healthy eating education.
In a statement, chief executive Mike Chapman said there were a host of challenges to the country's food supply.
They included urban encroachment on growing land, ''emotional'' battles over water, changing weather patterns, access to enough people to grow and harvest food, and increasing border traffic, meaning more potential biosecurity risks.
Horticulture was a $5.6 billion industry, made up of $3.4 billion fruit and vegetable exports to 124 countries, while New Zealanders ate $2.2 billion worth.