LandWISE Conference 2026 Havelock North Function Centre27 – 28 May 2026 Our “Soil Health for Profit” theme in 2026 is, in some ways, a return to the past. LandWISE arose out of work to combat soil erosion through use of minimum tillage and we’re returning to strip-till in 2026. A lot has been learned in…
Category: Fresh Vegetables
Winter Cover Crops
After the 2025-2026 butternut crop was harvested, the Regenerative treatment received Omya Calciprills (150 kg/ha), Sulphur (30 kg/ha), Boron (10 kg/ha), and Humates (5 kg/ha). This mix has been applied annually to stimulate soil microbes for good soil health. Thanks to Websters Hydrated Lime for supplying the micronutrients again. All three treatments were then disced…
Butternut Harvest Data
Heniz-Wattie’s was unable to process our butternut through the factory due to a lack of demand, so we had to find an alternative outlet. A local grower ended up harvesting the butternuts on the 13th of March, which was a month earlier than our target harvest date with Heniz- Wattie’s. Our butternut hand harvest of…
Butternut Harvest
Our butternut hand harvesting to collect research data was completed on the 9th and 10th of March. Our hand harvest samples were taken from 3 m × 2 m areas within each of the four subplots of each plot; 16 per treatment, 48 in all. All butternuts within the sample area were cut from the…
Measuring Soil Infiltration
We were delighted to have Carys Luke join us as our Summer Intern in 2025-2026. Carys’ key project was measuring soil infiltration rates using disc permeameters. These devices work under tension, so water has to be pulled into the soil by capillary forces. By controlling the amount of tension, we can set the soil pore…
Cyclone Gabrielle Research Symposium
Lessons for the management of highly productive land Two years after Cyclone Gabrielle devastated the Hawke’s Bay and Tairawhiti regions, what have we learned about recovery? Cyclone Gabrielle struck New Zealand in February 2023, causing widespread flooding that affected Hawke’s Bay, Gisborne/Tairawhiti, and Northland. In Hawke’s Bay and Tairawhiti, Cyclone Gabrielle was characterised by the…
Biodiversity Strips Update
We established two new biodiversity strips on the MicroFarm in 2025, in addition to the two from 2024. One of the new strips, which is located under the irrigator wire, includes alyssum, calendula, and native ground covers. The other strip which is along a fenceline has the A Lighter Touch annual flower strip mix, which includes alyssum,…
Carbon Positive: Butternuts
The butternuts have grown rapidly since being planted on the 15th of November. All three treatments have nearly reached full canopy cover. At this stage, the main differences we’re observing are between plots within treatments, rather than clear differences between the three treatments. The Operation Advisory Group has met weekly to observe how the butternuts…
Carbon Positive: Butternut Planting to Side Dressing
Planting The butternuts in the Carbon Positive trial were planted on the 15th of November. Before the butternuts emerged, there was a high weed pressure in the conventional treatment. Therefore, it was sprayed with Buster, while the other two treatments were not. Emergence When the butternuts started to emerge, we noticed there was cutworm damage…
Nitrate Levels on the MicroFarm
Throughout the Carbon Positive Trial, Soil Nitrate levels down to 30cm have been monitored fortnightly. During the tomato crop (26/10/2023 – 6/3/2024), the Regenerative treatment had significantly lower nitrate levels than the Conventional and Hybrid treatments, despite all three receiving similar amounts of nitrogen. This lower nitrate level was likely due to the breakdown…