Case Studies & Testimonials
Proven Results From Real New Zealand Farms and Orchards
Across New Zealand, farmers and growers are using DCT soil and plant nutrition products to improve nutrient efficiency, soil health, pasture performance, animal health, and whole-farm profitability.
These case studies come from commercial dairy, livestock, and horticultural systems — not trial plots. DCT works alongside existing fertiliser programmes, including those used by Farmlands, PGW Wrightson, and Ravensdown customers, helping growers get more from the nutrients they already apply.
At-a-Glance Results From DCT Users
📉 Up to 55% reduction in nitrogen inputs
📈 Increased milk solids and pasture utilisation
🐄 Lower animal health costs and improved SCC
🌱 Stronger roots, healthier soils, better stress tolerance
💰 Improved whole-farm and orchard profitability
Case Studies
Improved Pasture Minerals & DCAD Balance
Summary:
DCT products improved soil function, leading to higher pasture levels of Magnesium, Zinc, Copper, and Selenium. This also improved DCAD balance, supporting animal health and production.
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Improved Clover Growth & Natural Nitrogen Fixation
Summary:
Clover increased from an average of 10% to 17% across 10 paddocks after one year using DCT products. This improvement is equivalent to 49kg/ha of nitrogen (106kg/ha urea) through biological fixation.
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Improved Soil Structure & Biological Function
Summary:
DCT products improve soil structure, increasing aeration and drainage while supporting beneficial soil biology. This helps nitrogen-fixing bacteria on clover roots and other microbes convert nutrients into plant-available forms, supporting stronger pasture growth.
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Free Nitrogen Through Biological Fixation
Summary:
DCT products improve soil structure, root-zone conditions, and microbial activity, enabling clover-associated bacteria to fix nitrogen from the air and convert it into plant-available forms. This supports pasture growth and reduces reliance on applied nitrogen fertiliser.
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Improved Root Depth & Pasture Resilience
Summary:
After one year of using DCT products, average pasture root depth increased from 62mm to 105mm across 10 paddocks — a 51% improvement. Deeper roots improve nutrient access, drought resilience, carbon storage, and pasture performance.
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Better Pasture Utilisation & More Milk Solids
Summary:
After using DCT products, milk solids increased from 297 to 312 per season from the same amount of grass — a 4.9% improvement in utilisation. This supports better feed efficiency and farm profitability.
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Grass Grub Reduction Through Improved Soil Health
Summary:
After applying DCT products, grass grub populations declined significantly, with remaining grubs found dead and calcified. Improved soil biology, structure, and root health created conditions where pests struggle to survive.
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Onion Trial – Improved Quality With Reduced Inputs
Summary:
An onion trial using DCT products maintained bulb size while improving skin firmness, root depth, and overall quality. The crop required less fertiliser and reduced herbicide use compared with previous crops in the same paddock.
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Improved Hops Growth, Yield & Quality
Summary:
DCT products supported strong lateral vine growth, dense canopy coverage, healthy bud formation, and a lush green crop. The result was higher yield and better quality hops compared with a parallel crop using a competitor product.
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Berry Cane Strength, Yield & Soil Health Improvement
Summary:
DCT products supported stronger berry canes, improved drainage, healthier plants, and a significant increase in yield, while extending active growth later into the season.
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143% Increase in Soil Organic Matter in 6 Months
Summary:
Use of DCT products resulted in soil organic matter increasing from 3.2% to 7.8% over six months, significantly improving soil biology, structure, and long-term soil performance.
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Halving Fertiliser Use Without Sacrificing Results
Summary:
After using DCT products, a market gardening client reported they could halve their fertiliser inputs while achieving the same — or better — crop performance.
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Featured testimonials
Doug and Caroline — Higher Milk Solids With Less Nitrogen
System: Pasture-based dairy
Products used: Turbo N, Lazerhume
Key Outcomes:
Approximately 55% less nitrogen applied
Milk solids increased over three consecutive seasons
Animal health costs reduced by nearly 50% per cow
Pasture stayed greener through dry periods and recovered faster after rain
Summary:
By improving nitrogen efficiency and soil biology rather than increasing inputs, this dairy farm achieved stronger pasture performance, healthier cows, and higher production with lower overall risk.
Tristan — Pasture & Nitrogen Efficiency
System: Commercial pasture-based livestock
Product used: Turbo N-15
Key Outcomes:
Nitrogen inputs reduced from ~300 kg/ha/year to ~70 kg/ha/year
Pasture utilisation improved by 15–17%
Root depth increased from under 7 cm to over 40 cm
SCC reduced from ~250,000 to below ~50,000
Improved animal health and in-calf performance
Summary:
This system demonstrates how focusing on nitrogen efficiency, rather than nitrogen volume, can deliver more consistent feed supply and stronger livestock outcomes.
Leigh — Orchard Crop Health & Performance
System: Commercial fruit orchard
Products used: DCT Seaweed Plus, Lazerhume
Key Outcomes:
Healthier, more vigorous trees
Improved crop resilience and stress tolerance
Stronger root activity and nutrient uptake
Better overall crop consistency
Summary:
Supporting soil biology and plant stress pathways helped improve tree performance and crop reliability through seasonal pressure.
Why Farmers and Growers Use DCT
Across different systems, DCT users consistently report:
Better use of existing soil nutrients
Reduced reliance on high nitrogen inputs
Healthier plants, pasture, and animals
Improved tolerance to environmental stress
Stronger, more resilient production systems
DCT products are designed to enhance fertiliser efficiency, not disrupt proven farm management practices.
Talk to DCT About Your System
Every farm and orchard is different. Our team works with growers to tailor DCT products to their soils, climate, and production goals.
Results shown are from individual farms and orchards. Outcomes may vary depending on soil type, climate, and management practices.