Source
https://www.tupu.nz — original source (opens in a new tab; the file is not redistributed)
Tupu.nz (Te Puni Kōkiri) — Land use fact sheet: Potatoes (OT_108)
Te Puni Kōkiri. Land use fact sheet: Potatoes. Tupu.nz (whenua-Māori land-use resource), generated 16 Hūrae [July] 2026. Content contributed by AgFirst, Fresh Facts, Potatoes New Zealand and Te Puni Kōkiri kaimahi; uncredited data sourced from Stats NZ.
Advances RT_323 — the industry primary behind CR_051's 64 t/ha potato yield
This is the Tupu/MPI commercial-potato fact sheet CR_051 cited (footnote [^7]) for the “64 t/ha (high-input, Tupu/MPI)” potato yield. Read verbatim,
data_quality: verified. It resolves the Tupu/MPI 64 t/ha leg of RT_323; Potatoes NZ 51 t/ha (via Massey) and Ecoinvent NZ onion 45 t/ha are still secondary, so RT_323 stays partial. Note the fact sheet frames 64 t/ha as the current national commercial average (20-year growth to present), not a “high-input” outlier — a characterisation nuance vs CR_051, and the reason it sits above OT_096’s GHG-inventory constant (45/48 t/ha).
Summary
A Te Puni Kōkiri “land use fact sheet” for potatoes, one of the Tupu.nz series that helps
Māori landowners assess land-use options for their whenua. It compiles industry- and
Stats-NZ-sourced benchmarks for commercial potato growing in New Zealand: national scale
(>10,000 ha, 175 growers, >half a million tonnes, >1bn revenue), agronomy (LUC 1–4, flat
to rolling, 500–700 mm water over a 120–150 day season, best at 18–20 °C), establishment
economics (~5,000/ha to establish and grow, excluding harvest), and — the NI-relevant
core — a current national average yield of 64 t/ha giving gross revenue of
25,600–44,800/ha at $400–700/t. It is the industry primary behind CR_051’s 64 t/ha
figure and the commercial-monoculture counterpart to the model’s mixed biointensive-garden
veg_yield (~21–25 t/ha) — a bulk-staple benchmark, not a model input.
Key claims
- claim: "NZ commercial potato yield — average crop size 'has increased steadily over the last 20 years and now sits at an average of 64 tonne per hectare'. More than 50 varieties are grown commercially in NZ; growers choose varieties by location and market (table/fresh, processing, or seed)."
source_location: "Financial information → Grower returns; The industry → Getting into the industry"
- claim: "Potato gross revenue per hectare (verbatim): 'Based on an average yield of 64 tonne and a market price of $400-$700 per tonne, the average gross revenue per hectare is in the range of $25,600 to $44,800.' Open-market price 'in the 3 years to 2017 ... varied between $400 and $700 per tonne'; early-season premium 'at least $500-$600 per tonne'."
source_location: "Financial information → Grower returns"
- claim: "Establishment + growing cost ≈ $5,000/ha (verbatim): 'Spraying, fertilising and cultivating the land is typically around $2,200 per hectare. Seed potatoes average around $2,500 per hectare, and the average cost for hiring a contractor to plant is around $150 per hectare. This means there's a total cost of around $5,000 per hectare to establish and grow the crop.' Cost of harvest is ADDITIONAL and depends on contractor/packhouse arrangements (not included in the $5,000)."
source_location: "Financial information → Operational costs (also restated under Equipment and infrastructure)"
- claim: "Land suitability and agronomy: potatoes are best suited to flat to rolling land and LUC classes 1-4, on deep, easily worked, well-drained soils. A typical 120-150 day potato crop uses 500-700 mm of water over the growth period. Potatoes grow for 120-150 days from planting."
source_location: "Growing requirements → Growing conditions; → Water; → Growing season / Harvest"
- claim: "Climate window: best yields at an average daily temperature between 18°C and 20°C; potatoes 'don't grow well in temperatures below 10oC or above 30oC'. Crop must be planted after risk of frost has passed."
source_location: "Growing requirements → Climate"
- claim: "Industry scale: 'New Zealand uses more land for growing potatoes than any other crop, with over 10,000 hectares grown by 175 commercial potato growers each year.' In 2018 the national crop increased by 30,000 tonne to over half a million tonnes in total and generated over a billion dollars in revenue. Largest producer Canterbury, then Auckland, Waikato, Manawatu-Wanganui and Hawke's Bay (also Otago and Southland)."
source_location: "Overview (intro); Getting started → Regions"
- claim: "Market split of NZ potato value: 55% from process crops, 24% from fresh use, 19% from crisps, 2% from seed production. Around 25% of the total crop is exported (strongest export market: frozen chips)."
source_location: "The industry → Market"
- claim: "Commercial-scale threshold and capital: 'Less than 5 hectares may be unprofitable. Bigger tends to be better' — commercially viable blocks start around 5 ha. Equipment: a potato planter costs around $45,000; a potato harvester between $170,000 and $210,000. Land-lease market rate for potato-capable land: up to $2,200 to $3,000 per hectare."
source_location: "Overview → Commercial scale; Getting started → Commercial scale; Getting started → Leasing; Getting started → Equipment and infrastructure"Neobiome Intelligence relevance
A food-domain validation anchor (commercial bulk-staple yield + economics) — not a model input. This resolves the last major retrievable leg of RT_323’s potato benchmark and firms the food-cost sanity checks:
- Yield validation (D02). 64 t/ha is now primary-verified as the current national
commercial average per the industry fact sheet. It sits well above the model’s
mixed biointensive-garden
veg_yield(~21–25 t/ha, LIT_058 / CR_021) — the expected staple-vs-garden gap, not a contradiction: a single high-yielding bulk staple on LUC 1–3 monoculture outyields a mixed hand-picked garden. Consistent with LIT_058’s finding that regenerative gardens lose to conventional on bulk staples (potato 1.8 vs 4.5 kg/m²). - Reconciles with OT_096 (basis difference, flag not conflict). OT_096 (MPI GHG-inventory) uses a constant 45 t/ha (Stats NZ) / 48 t/ha (Potatoes NZ 2009 survey) applied across all inventory years; this fact sheet reports 64 t/ha as the present-day average after “20 years” of yield growth. Both are national commercial averages — they differ by vintage and purpose (a fixed historical inventory constant vs a current industry figure). Cite 45–48 t/ha for a conservative/inventory basis, 64 t/ha for a current-commercial upper anchor (per D_001’s both-sides discipline).
- Food-economics cells (④/cost layer). Gives NZ-published, industry-sourced figures for
a commercial potato enterprise: establishment+growing **~
5,000/ha** (spray/fertilise/ cultivate2,200 + seed2,500 + contractor-plant150; harvest excluded), gross revenue25,600–44,800/ha, and price **400–700/t**. These are *commercial monoculture* economics — a contrast/upper baseline against the organic community market-garden operating cost (~90–130k/ha/yr, labour-dominated, CR_018), which reflects a completely different (hand-scale, high-diversity) production mode. - Agronomy layer (LUC + water + climate). LUC 1–4 suitability, 500–700 mm water per 120–150 day season, and the 18–20 °C (10–30 °C tolerance) window are NZ-govt-sourced parameters that corroborate the model’s arable land-class gating (LUC 1–3 highly productive; cf. CR_052 / OT_097) and the food↔water irrigation coupling (CR_033).
Feeds D02.
Research targets
Documents to retrieve
- RT_323 stays PARTIAL (advanced, not resolved). The Tupu/MPI 64 t/ha leg is now primary-verified here; the potato 45/48 t/ha GHG-inventory leg was verified earlier via OT_096. Still secondary: Potatoes NZ commercial yield (51 t/ha, via Massey) and Ecoinvent NZ onion (45 t/ha) — retrieve to close RT_323 fully. Lower priority (validation anchors, not model inputs).
Research gaps
- RT_307 remains OPEN — no NZ permaculture/CSA/regenerative smallholding per-ha
vegetable-yield dataset exists; these commercial crop stats are the closest published
proxy, not the real gap-filler. The honest position stands: the model’s regenerative
veg_yield(~21–25 t/ha) has no NZ real-world primary and is validated against UK data (LIT_058).
Notes
Primary — a Te Puni Kōkiri / Tupu.nz land-use fact sheet, read verbatim. data_quality: verified. Single-file PDF, generated/printed directly from tupu.nz (generation stamp “16
Hūrae 2026”) — authoritative NZ-govt content, not AI-prepared, so no retrieval-provenance
block. Content credited to AgFirst, Fresh Facts, Potatoes New Zealand and TPK kaimahi;
uncredited figures from Stats NZ. Caveats: (1) url: is set to the tupu.nz root — the
exact deep-link path for the potato fact sheet was not confirmed at retrieval; do not treat
it as canonical. (2) Underlying data vintage is ~2017–18 (open-market price “in the 3 years
to 2017”; “in 2018 the national crop…”), while year: records the 2026 generation date —
the fact sheet is a living/regenerated document. (3) The forward “strategic targets to 2025”
in the fact sheet are now historic. Companion potato-yield primary: OT_096.
Connections
Links to
Referenced by
Sources (1): OT_164
EDT domains (1): D02: Smart Food Systems & Agriculture