Another innovation was using GPS technology shared with them by John Deere, which allowed them to plant in both directions.
The Kirks' company Hortinvest runs the development and marketing contracts for cherry orchards at Lindis Peaks Station and Mt Pisa Station in the Upper Clutha region of Central Otago.
They also run the Tarras Cherry Corp — set to have its first crop this December.
The Kirks are also capital raisers, and after finishing the first round of a capital raise in August were able to carry out their second round of planting — getting 58,000 trees in the ground this year.
The Mt Pisa development was planted out and they hoped to soon get a start finishing the Lindis Peaks development.
They planned to start a second capital raise towards the end of this month to fund planting at the remaining 46ha at Lindis Peaks.
"Next round of funding is to get that planted and then we'll look at building a packhouse next year," Mrs Kirk said.
Picking season for cherries runs from December to February, and Mrs Kirk said she was confident they would get enough workers — up to about 25 people to pick their Tarras Cherry Corp.
"I'm not anticipating that we will have a major problem, but for the industry as a whole it's a very big concern getting enough pickers for the coming season."