Better plans for orchard

A NORTHERN New South Wales macadamia orchard has lifted production by close to 30 per cent after implementing an Integrated Orchard Management plan.

NSW DPI development officer, Jeremy Bright, said the Nicol family’s Wollongbar enterprise lifted production from 55 tonnes nut in shell (NIS) in 2016 to 70 tonnes NIS in 2017.

“Success followed implementation of the plan, which saw the orchard downsize from an original 9900 to 6700 trees,” Mr Bright said.

“By 2016, the number of trees had already been reduced to 7540 and the IOM plan identified ways to reduce nut losses in the short-term and lift production in future.”

Farm manager Bill Johnstone said a key part of the plan was to control water flow, especially in steep areas.

“We looked at ways to address root exposure, erosion and nut loss,” Mr Johnstone said.

“Our first step was to completely renovate the farm by removing rows where water flow was a problem, protect blocks from run-on water, channel water through stable watercourses and implement specific slope management, some of which were 22 per cent to 33 per cent slopes.

“Another outcome was the resource we gained from felled trees – 1800 cubic metres of wood chip was used to help rebuild orchard soils.

“We blended almost half of the wood chip with husk, feedlot manure and calcium silicate and used a band spreader across the farm at rate of 100 kilograms per tree.”

Sale of 1000 cubic metres of wood chip helped offset the initial costs of the IOM plan.

A farm machinery audit identified equipment for replacement, which fitted the priorities of the IOM plan.

Mr Johnstone said old tractors and implements were sold and replaced with a reverse steering tractor, 3m harvester, fertiliser spreader and a front-end loader.