Regenerative Farming Starts Below Ground: What NZ Farmers Should Know Before Spring

9 Jun

Your fertiliser programme is in place. Your seed is ordered. But if the soil biology underneath isn't working, you might be leaving your best returns in the ground.

Every year, as winter eases and soil temperatures begin to lift, New Zealand farmers face the same challenge: getting the season off to the strongest possible start.

More grass, earlier. Better pasture cover. Stronger animal performance through spring.

Most of the attention goes to what we can see above ground. Fertiliser rates. Seed selection. Nitrogen timing. Irrigation scheduling. All important. But they're only part of the picture.

The part that often gets overlooked is what's happening below ground. And increasingly, the farms achieving more consistent results are the ones paying attention to soil biology as part of their overall farm management strategy. Not as a philosophy. Not as a trend. As a practical way of improving how the whole farming system performs. That's what regenerative farming means for many New Zealand farmers today. Not a set of rules. Not an all-or-nothing approach. Simply a direction that focuses on building healthier, more resilient soils over time.

Why Pre-Spring can be the Window That Matters Most

Soil biology doesn't operate like a tap you can turn on overnight. It builds—or declines—over time. That means the decisions made before spring can influence how efficiently your inputs perform throughout the season. When soil biological activity, soil structure, and root development are functioning well, several things tend to happen:

Nutrients applied through fertiliser are utilised more efficiently by plants.
Root systems are better able to explore the soil profile for moisture and nutrients.
Pasture often responds more effectively as soil temperatures rise.
Plants are generally better equipped to recover from grazing pressure and environmental stress.
Water infiltration and soil moisture retention can improve.

Conversely, where soils are compacted, low in organic matter, or biologically inactive, farmers can find themselves applying the same inputs but seeing less consistent responses.

Sound familiar? Many farmers are spending the same—or more—on fertiliser than they were several years ago. The fertiliser bill is the same. The response isn't.

What Regenerative Agriculture Actually Means on a Working NZ Farm

The term "regenerative agriculture" gets used a lot. Sometimes it sounds like a lifestyle movement. Sometimes it sounds like a marketing category. Neither interpretation is particularly useful if you're running a commercial farming business. In practical terms, regenerative farming means supporting the natural biological processes in your soil so they can do more of the heavy lifting.

The objective is simple:

Improve nutrient cycling.
Improve soil structure.
Improve water holding capacity.
Improve pasture resilience.
Improve the efficiency of the inputs already being applied.

That's it.

No ideology required. It's also important to understand what regenerative farming is not. It's not removing fertiliser overnight. It's not abandoning proven agronomic practices. It's not necessarily going organic. And it certainly isn't an all-or-nothing shift. Most New Zealand farmers moving in this direction are making gradual, measurable changes and assessing results over multiple seasons.

A Practical Example

Imagine two paddocks receiving exactly the same fertiliser application. One paddock has healthy soil structure, active soil biology, and strong root development.

The other is compacted, has low organic matter, and limited biological activity. The fertiliser cost is identical. But the pasture response can be very different.

The difference isn't necessarily what went on. The difference is what the soil is capable of doing with it.

What This Looks Like on Different Farming Systems

Improving soil biology isn't a one-size-fits-all exercise.

The principles are similar, but the application varies depending on the farming system.

Dairy Farms

On a dairy farm, the focus may be improving nutrient cycling and soil structure to maximise response from spring and autumn fertiliser applications while maintaining pasture quality.

Sheep and Beef Farms

On sheep and beef properties, the priority may be improving pasture persistence, increasing drought resilience, and helping paddocks recover faster following summer dry periods.

Mixed and Cropping Farms

On mixed farming and cropping operations, it may involve reducing cultivation intensity, incorporating diverse cover crops, and building organic matter to support future crop performance.

The common goal across all systems is improving the soil's ability to cycle nutrients, retain moisture, and support healthy root growth.

Why More New Zealand Farmers Are Looking at Soil Health

The growing interest in soil biology isn't being driven by trends.

It's being driven by practical farm challenges.

Inputs Costing More and Returning Less

Fertiliser costs have risen significantly over recent years.

Yet many farmers feel pasture responses haven't increased at the same rate.

When soil structure and biological activity are compromised, nutrient utilisation can suffer, reducing the return from every fertiliser dollar spent.

Patchy Paddocks That Never Quite Perform

Most farms have one.

The paddock that has been resown multiple times but still struggles.

The block that consistently underperforms despite receiving the same inputs as everything around it.

While drainage and pasture species can play a role, soil compaction, low organic matter, and poor soil biological function are often contributing factors.

Slower Recovery After Dry Conditions

Weather variability is part of farming in New Zealand.

Summer dry periods, cold springs, and seasonal extremes are unavoidable.

Farms with deeper root systems, higher organic matter levels, and active soil biology are often better positioned to recover when conditions improve.

Environmental Compliance Pressure

Nutrient management is becoming increasingly important across New Zealand agriculture.

Farms with good soil structure, active root systems, higher organic matter levels, and healthy biological activity often have greater capacity to retain and utilise nutrients efficiently, helping reduce the risk of nutrient losses.

Improving soil health isn't just a production consideration.

Increasingly, it's also a risk management consideration.

Where to Start Before Spring

The good news is that supporting soil biology doesn't require a complete overhaul of your farming system.

Small, targeted improvements often deliver the greatest long-term benefits.

1. Understand What's in Your Soil

Most farmers regularly test for pH, phosphorus, potassium, and sulphur.

Fewer assess soil structure, organic matter levels, or biological indicators.

Before spending more on inputs, it pays to understand how well the soil is functioning.

2. Address Compaction Strategically

Compaction is one of the biggest limitations to root growth and soil biology on New Zealand farms.

It restricts oxygen movement, limits root penetration, and reduces soil function.

Before reaching for a subsoiler, identify where compaction actually exists.

Gateway areas, feed-out zones, laneways, and high-traffic paddocks are often the main problem areas.

Targeted intervention is usually more effective than widespread cultivation.

3. Choose Species That Support Soil Health

Not all pasture species contribute equally to soil function.

Deeper-rooting species such as plantain, chicory, and clovers can contribute organic matter deeper into the soil profile and support greater biological diversity around the root zone.

If you're planning pasture renewal, it's worth considering what a species contributes below ground as well as above it.

4. Feed the Soil Biology

Like livestock, soil microbes need a food source.

Organic inputs such as fish fertilisers, humates, and seaweed extracts can provide carbon compounds and biological stimulants that support microbial activity within the soil.

As microbial populations become more active, they assist with nutrient cycling, root development, and overall soil function.

The objective isn't to replace conventional fertiliser.

The objective is to improve the performance of the entire system.

Once pH, fertility, and compaction issues have been addressed, many farmers choose to incorporate biological products alongside their existing fertiliser programme as part of a broader soil health strategy.

Key Takeaways

Pre-spring is one of the best opportunities to support soil biology before rapid pasture growth begins.
Soil health influences how effectively plants utilise fertiliser inputs.
Regenerative farming is a direction, not a prescription.
Addressing compaction often delivers significant benefits.
Improving soil biology is a long-term investment rather than a quick fix.
Healthy soils are generally more resilient during environmental stress.
Small changes applied consistently often outperform major short-term interventions.

The Honest Take: How Long Does This Take?

Anyone promising dramatic soil transformation in a single season is oversimplifying the process.

Meaningful improvements in soil biological function often take two to four seasons to become clearly visible.

Some benefits may appear earlier.

Improved pasture response.

Better nutrient utilisation.

Improved soil structure.

But the larger gains accumulate over time.

That's exactly why pre-spring is the right time to start.

Not because you'll transform the farm before calving.

Because every season you delay is another season before those improvements begin compounding.

Farmers who have consistently focused on soil health over several years often report similar outcomes:

More consistent pasture performance.
Faster recovery after stress events.
Improved resilience during dry periods.
Greater confidence in reducing unnecessary inputs over time.

None of it happens overnight.

All of it starts below ground.

How Vernado Re-Gen Supports This Approach

Vernado Re-Gen is a range of biological and organic products developed to support soil biological activity on New Zealand farms.

It's not designed to replace your current fertiliser programme.

It sits alongside it.

The range includes fish fertilisers, seaweed and humate-based products, microbial activators, and Re-Gen seed mixes developed with both soil health and production performance in mind.

These products are designed to support the biological component of the farming system that conventional fertiliser programmes often don't directly address.

They're not miracle products.

They're practical tools intended to help improve the biological capacity of the soil so the rest of your programme has a better opportunity to perform.

If your fertiliser spend feels like it's working harder to achieve the same result—or if certain paddocks consistently underperform despite repeated intervention—it may be worth taking a closer look at what's happening beneath the surface.