Key Takeaways
- The Clarks’ carrot seed crop showed strong establishment and weed control but suffered from a lack of hot, dry Canterbury weather needed for optimal pollination.
- A wet summer hampered bee activity, reduced seed set, and increased the risk of hail that could destroy a year’s work overnight.
- Low returns on capital relative to capital costs have driven the Clarks and many other arable farmers to consider exiting the sector, with dairy conversion a leading alternative.
- Rod May’s dairy conversion illustrates a growing trend: Environment Canterbury has approved 43 effluent discharge consents, permitting up to 37,367 additional cows on the plains.
- Farmers cite succession planning, the desire for a small, reliable family business, and avoidance of high machinery and fuel costs as motivations for switching to dairy.
- Federated Farmers’ arable group chair highlights rising fuel prices (from ~$450 to ~$1,100 per tank) and expensive machinery repairs as further pressures on arable profitability.
- The impending closure of Heinz Wattie’s processing plant adds uncertainty, though growers note alternative processors exist in the south.
- Collectively, these factors signal a structural shift in Canterbury’s agricultural landscape, with many arable acres likely to transition to livestock farming.
- The move toward dairy is not merely chasing another “cash cow”; it reflects a strategic response to climate volatility, market forces, and the need for long‑term farm viability.
- Ongoing monitoring of consent approvals, market prices, and climate patterns will be essential to understand the full impact of this transformation on the region’s economy and environment.
Clark’s Carrot Seed Prospects Undermined by Weather
David Clark inspected his radish seed crop while reflecting on this year’s carrot seed venture. He noted that establishment was very good, weed control through the winter had been exceptional, plant height remained uniform, and umbel (flower cluster) numbers entering the pollination season were also very good. The only missing ingredient was the typical hot, dry Canterbury weather that drives successful pollination and seed set. Without that climatic cue, the crop’s potential yield remained uncertain despite solid agronomic foundations.
Wet Summer’s Impact on Pollination and Yield
A wet summer presented a double‑edged challenge for arable farmers on the plains. Persistent rains kept bees from foraging effectively, which directly reduced pollination rates and consequently lowered seed production. Moreover, when rain turned to hail, the risk of losing an entire year’s work to compost became very real—a scenario several Canterbury farmers have endured over the past three years. The Clarks highlighted that some mid‑Canterbury growers ended up with no harvestable crop to run through their combine harvesters, underscoring the financial devastation such weather events can cause.
Decision to Exit Arable Farming
Faced with these climatic and market pressures, Jayne and David Clark concluded that continuing in arable farming was no longer feasible. David summed up the sentiment: “We’re all on a no‑exit road in arable at the moment,” adding that the return on capital was now less than the cost of capital. While they have not yet settled on a new enterprise, dairy cows emerged as a major contender. The Clarks expressed a belief that a swift collective exit from arable and a move toward livestock would improve the sector’s overall outlook.
Rod May’s Transition to Dairy
Rod May of Greendale has already begun the shift from crops to cows. Two years ago, Environment Canterbury (ECan) granted him consent to change farmland use, allowing him to start constructing a new dairy shed. May noted that his farm was the second consent and the second shed built in the area, signalling the start of a broader wave of conversions stretching from Greendale toward the Waimakariri River. He emphasized that the move is not merely a chase for another “cash cow” but a considered response to long‑term farm sustainability.
Environment Canterbury Consents Drive Dairy Expansion
The consent approvals issued by ECan provide a quantitative picture of the dairy expansion underway. In the past two years, 43 dairy effluent discharge consents have been granted, permitting up to 37,367 additional cows to be introduced onto the Canterbury plains. Of these, twenty consents apply to farms in central and north Canterbury, while twenty‑three are for properties south of the Rakaia River. A further seventeen consents remain in process, indicating that the momentum toward dairying shows no immediate sign of slowing.
May’s Perspective on Dairy Conversion Motivations
When asked about his motivations, May highlighted succession planning as a central factor. He explained that he had long looked across the fence at the dairy industry, envying their clear pathways for passing farms to the next generation. For May, the goal is to create a small, reliable business that can support his family without the volatility he experienced in arable cropping. He stressed that the conversion is driven by a desire for stability rather than a speculative pursuit of higher profits.
Federal Farmers Arable Group Chair’s View on Costs
David Birkett, chairperson of the Federated Farmers arable group, echoed the economic concerns driving the shift. He pointed out that machinery repair and replacement costs have risen sharply, and fuel prices have surged following geopolitical conflicts—in his case, the cost to fill a tractor has jumped from roughly $450 to about $1,100 per day. Birkett noted that such expenses are far less burdensome in dairy operations, where fuel use per unit of output tends to be lower, making dairying an economically attractive alternative for many arable farmers.
Broader Context: Heinz Wattie’s Plant Closure and Alternatives
Beyond weather and input costs, arable growers face additional uncertainty from regional processing changes. Birkett mentioned that the impending closure of the Heinz Wattie’s processing plant will affect several growers, although he noted that alternative processing facilities exist further south. This reinforces the idea that market access, not just production conditions, influences farmers’ decisions about whether to remain in arable farming or transition to other enterprises such as dairy.
Future Outlook for Canterbury’s Arable Sector
The convergence of adverse weather, rising input costs, low returns on capital, and shifting market dynamics suggests a structural transformation in Canterbury’s agricultural landscape. Many farmers, exemplified by the Clarks and Rod May, are actively evaluating or executing exits from arable cropping in favor of dairy or other livestock systems. If the current trend continues, a significant proportion of the plains’ arable acreage could be repurposed for dairy effluent‑consented operations, reshaping both the rural economy and the region’s environmental footprint.
Conclusion: Balancing Economic Viability and Environmental Factors
Ultimately, the shift from arable to dairy in Canterbury is not a simple fad but a pragmatic response to a suite of interlocking challenges. Farmers are seeking enterprises that offer reliable returns, manageable input costs, and clearer succession pathways—qualities they find increasingly difficult to achieve in traditional cropping under present climatic and market conditions. As consent approvals continue to enable dairy expansion and as farmers weigh the pros and cons of each option, the region will likely see a pronounced move toward more intensive, livestock‑focused farming. Monitoring how this transition affects productivity, water quality, and rural communities will be essential for policymakers and stakeholders aiming to balance economic viability with environmental stewardship.