Member Spotlight – NEC: Turning Precision Agriculture into Measurable Climate Impact

How a GeSI member is using digital intelligence to cut emissions in agriculture — and measuring it with the EGDC Net Carbon Methodology. 

How a GeSI member is using digital intelligence to cut emissions in agriculture — and measuring it with the EGDC Net Carbon Methodology. 

GeSI’s members are doing some of the most important work in sustainability today — turning ambition into measurable, real-world impact — and NEC Corporation is a standout example. One of Japan’s most established technology companies, NEC has put real effort into proving that digital innovation can cut emissions well beyond the ICT sector, and its CropScope precision agriculture platform shows just how much difference a single member can make. 

About NEC 

Founded in 1899, NEC is a global technology company headquartered in Japan, with a portfolio spanning telecommunications, cloud computing, cybersecurity, and IT and network solutions. Across more than a century of operation, the company has built a reputation for innovation and for pairing technical excellence with a strong corporate-responsibility agenda, investing in initiatives that advance sustainability and social well-being. Its work with the EGDC sits squarely within that tradition: using digital intelligence to solve a stubborn environmental problem in a sector far removed from ICT itself — agriculture. 

The challenge: getting fertiliser right 

Fertiliser is essential to modern farming, but applying too much of it is both costly and environmentally damaging. Over-application drives nitrogen leaching and the volatilisation of nitrous oxide — a greenhouse gas far more potent than CO₂ — while excess nutrients run off into the surrounding environment. The consequences range from higher input costs for farmers to eutrophication, algal blooms that starve waterways of oxygen, soil acidification and biodiversity loss. The core issue is precision: farmers have historically lacked the granular, field-level data needed to apply exactly the right amount of nitrogen, in exactly the right place. 

The solution: CropScope and Variable Rate Fertilisation 

NEC’s CropScope platform tackles this directly through its Variable Rate Fertilisation (VRF) functionality. Drawing on satellite imagery, soil-nitrogen estimates and historical yield data, CropScope divides each field into multiple management zones and automatically generates a fertilisation map recommending the optimal amount of nitrogen for each one. Farmers view the map on a computer, connect it to compatible tractors, and a mass-flow controller carries out the application automatically. The result is a data-driven approach that reduces fertiliser use while maintaining — and in some cases improving — crop yields. 

Testing it with the EGDC Net Carbon Methodology 

What makes NEC’s contribution stand out is not only the technology but the rigour with which its impact has been measured. NEC applied the EGDC Net Carbon Methodology across three ex-post case studies on farms in Hokkaido, Japan, covering corn, winter wheat and spring wheat over their respective harvesting seasons. The assessment follows the methodology’s full logic: first-order effects (the embodied, use-phase and end-of-life emissions of the hardware itself), second-order effects (the emissions avoided through reduced fertiliser use), and higher-order effects (the wider, often qualitative consequences of the solution). NEC’s role — innovating, developing and deploying the solution — corresponds to an A-level organisational contribution as defined by ITU-T L.1480. 

Crucially, the net carbon impact is calculated by subtracting the solution’s own footprint from the emissions it avoids, ensuring the headline figure reflects a genuine net benefit rather than gross savings. 

The results 

Across all three crops, CropScope delivered a net carbon saving — meaning the solution avoids more emissions than it generates. In total, it enabled fertiliser savings of roughly 782 kg per crop season. 

Crop	Net carbon impact per kg	Total over crop season	Uncertainty range
Corn	−0.09 kgCO₂e/kg	−812 kgCO₂e	−653 to −987
Winter wheat	−0.12 kgCO₂e/kg	−3,699 kgCO₂e	−2,953 to −4,613
Spring wheat	−0.07 kgCO₂e/kg	−736 kgCO₂e	−592 to −891

The methodology also reports uncertainty ranges for each crop and transparently identifies fertiliser quantity as the dominant driver of the results — exactly the kind of honest, science-based reporting the EGDC methodology is designed to encourage. 

Beyond carbon: water, soil and biodiversity 

The benefits of using less fertiliser extend well beyond avoided emissions. Reduced run-off improves local water quality and helps prevent the eutrophication that triggers algal blooms and harms aquatic life. Lower nutrient pollution protects natural plant communities and the wildlife that depends on them, while healthier soils — with less acidification and salinisation and greater organic-matter retention — support more resilient ecosystems overall. The solution also generates cost savings for farmers (estimated at around $606 per crop season). NEC has openly flagged the modest rebound risk that such savings could be reinvested in carbon-intensive activities — about 2% of the total benefit, assessed as low risk — and is actively exploring ways to ensure they are channelled into further emissions reductions instead. Assessed against the EU Taxonomy, the solution is found to do no significant harm and to strongly support the objective of climate-change mitigation. 

Why it matters 

NEC’s CropScope case study captures what GeSI membership is all about: companies that take their sustainability responsibilities seriously and put genuine effort into delivering measurable change. NEC has applied digital innovation to a high-impact, hard-to-decarbonise sector and then measured the results with transparency and scientific discipline. By documenting its assumptions, data sources and calculation steps in full, the company has produced not just a compelling sustainability story but a credible, replicable one — equipping other organisations to learn from its approach and apply it to their own solutions. 

This spotlight is part of GeSI’s ongoing series celebrating the members who are leading the way on sustainability. Across the membership, organisations are stepping up to tackle the climate challenge with practical, deployable solutions — and NEC’s CropScope stands out as a member putting in the effort to make a genuine difference.