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Owners of unproductive land encouraged to grow 'black diamonds'

Author
Bay of Plenty Times,
Publish Date
Wed, 22 Jun 2022, 3:53PM
Photo / File
Photo / File

Owners of unproductive land encouraged to grow 'black diamonds'

Author
Bay of Plenty Times,
Publish Date
Wed, 22 Jun 2022, 3:53PM

A Bay of Plenty truffle company is sharing the secrets of the industry in a bid to get landowners growing "black diamonds" across the country.

Ohiwa Black Diamond Truffles is receiving more than $155,000 of government funding over three years to share its knowledge with interested growers, so New Zealand can grow enough truffles for a robust export industry.

The business is also researching and developing new truffle products that incorporate the health benefits of truffles with traditional Māori rongoā (healing).

The business is run by Ohiwa-based couple Matiu Hudson and Annette Munday.

Since partnering with the Ministry for Primary Industries (MPI) through the Sustainable Food and Fibre Futures fund last year, they have held three workshops on truffle growing, with more lined up over the coming weeks.

"We've already received orders for around 10,000 inoculated truffle seedlings from several hapū, and we've helped a Kawhia whānau set up their truffière," Munday said.

"We'd like to see Māori land trusts and farmers around New Zealand growing truffles on unproductive land.

"It's an opportunity to make money out of land with poor soil, and could offer a side-line income for farmers if they planted seedlings beside trees used for riparian planting, for example."

Truffles can fetch between $2500 and $3500 per kilogram, and set-up costs per hectare for growing truffles range between $35,000 and $70,000.

Munday said each tree was capable of yielding 200 grams to one kilogram in well-managed plantations.

"The truffles on our Ohiwa plantation are grown beside oak and hazelnut trees, but pinus pinea trees are also suitable."

Truffles needed soil with a high level of acidity to grow effectively, Munday said

"We've been trialling growing spores under New Zealand natives but have found their root system doesn't support truffle growth – although we're still experimenting."

The company has been working with Callaghan Innovation to develop a liquid truffle extract that can be used in face creams and other beauty products.

"It's claimed that truffles have anti-ageing and anti-oxidant properties, so we're looking to tap into that," Munday said.

"We're also working with a New Zealand chef on a premium truffle paste."

Ohiwa Black Diamond Truffles sold fresh truffles to some of New Zealand's top chefs and restaurants but aimed to export overseas in the near future, Munday said.

Expanding the truffle industry in New Zealand could create new jobs for Kiwis, Steve Penno, director of investment programmes at MPI, said.

The truffle industry had significant export potential as New Zealand businesses were currently unable to keep up with overseas demand, Penno said.

"Growers could potentially earn significant sales revenue from the eventual harvest of truffles on often marginally productive land."

Truffle hunting season commences this month, using trained dogs to sniff out the truffles.

Members of the public are invited to join in the fun at one of Ohiwa Black Diamonds Truffles' public hunts.

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