Improving Nitrogen Efficiency Saves Money

Inoculating Seed with Biology Improves Nitrogen Efficiency and Saves You Money

Nitrogen is one of the most expensive inputs on Australian farms, but a large proportion of applied nitrogen never reaches the crop. It volatilises, leaches, or remains locked in the soil in forms plants can’t use. Leaving unused nitrogen in the paddock doesn’t make economic sense, especially when biology is the key to unlocking it.

Nitrogen: The Engine Room of Plant Growth

Every function a plant performs requires nitrogen. Nitrogen is a core component of –

• amino acids and proteins
• enzymes and hormones
• Chlorophyll
• DNA and cell structure

Without a steady supply of plant‑available nitrogen, crops cannot build biomass, respond to stress, or reach yield potential. Research consistently shows that soil microbes are essential for converting nitrogen into plant‑available forms such as ammonium and nitrate.¹

Nitrogen is One of Your Biggest Costs and Biology Helps You Use More of It

Synthetic nitrogen fertiliser is often the largest single input cost on broadacre farms. Yet studies show that 25–70% of applied nitrogen can be lost before the crop ever uses it.²

By inoculating seed with biology at sowing, you’re ensuring:

• more nitrogen is captured and cycled by microbes
• less nitrogen is left unused in the soil
• more of your fertiliser dollar ends up inside the plant

Microbial inoculants have been shown to increase nitrogen uptake efficiency and reduce fertiliser requirements in cereals, legumes, and oilseeds.³

Soil Biology Needs Oxygen and It Works Hard for You

Just like plants, microbes need oxygen to survive. Active soil biology drives nutrient cycling by:

• breaking down organic matter
• releasing nutrients from soil minerals
• mobilising nitrogen, phosphorus, sulphur and trace elements
• transporting nutrients directly into plant roots

Some soil microbes even move inside the plant, forming endophytic relationships that boost nutrient uptake and help plants cope with stress.⁴

Oxygen, Photosynthesis and Plant Energy

Plants need oxygen from both the soil and the air to complete respiration (the second stage of photosynthesis), the process that converts glucose into usable energy. Without adequate oxygen, photosynthesis slows, root growth stalls, and nutrient uptake declines.

Two things help keep oxygen flowing:

1. Biological compounds

NutriSoil contains natural compounds that help open stomata, improving gas exchange and oxygen flow into the leaf. Better oxygen exchange means more efficient photosynthesis and more energy for growth.

2. Active soil biology improves soil structure

Microbes produce glues (polysaccharides) that bind soil particles into aggregates. Better aggregation means:

• more pore space
• improved aeration
• better water infiltration
• stronger root development

This oxygen‑rich environment allows plants to photosynthesise more efficiently, generating the energy needed for growth, development and resilience.

Biology Converts Nitrogen – Delivering It Directly to the Plant

Microbes don’t just convert nitrogen, they transport it directly to plant roots through the rhizosphere. Some species form tight relationships with roots, handing over nitrogen in exchange for plant sugars. This biological nitrogen delivery system is far more efficient than relying solely on synthetic fertiliser.

NutriSoil – Feeding the Biology That Feeds Your Crop

NutriSoil is rich in microbial metabolites, enzymes, organic acids and signalling compounds that:

• stimulate microbial activity
• feed beneficial soil biology
• improve soil oxygen availability
• enhance nutrient cycling
• support stronger, more resilient crops

By inoculating seed with NutriSoil, you’re giving your crop a biological head start, ensuring more nitrogen is captured, converted and delivered where it matters most. Adding NutriSoil as a foliar application or in your nutrient mix is another option to improve nutrient available and efficiency.

The Bottom Line

Nitrogen is too valuable to leave unused in the soil. Biology is the key to unlocking it.

Inoculating seed with NutriSoil:

• improves nitrogen efficiency
• reduces fertiliser losses
• strengthens soil structure
• boosts plant energy production
• supports healthier, more productive crops

When you invest in biology, you’re not just feeding the soil — you’re protecting your fertiliser investment and building a more resilient farming system.

References

1. https://ohioline.osu.edu/factsheet/anr-36
2. https://groundcover.grdc.com.au/agronomy/soil-and-nutrition/national-study-into-nitrogen-losses
3. https://www.researchgate.net/publication/229160041_Plant_growth-promoting_rhizobacteria_PGPR_Emergence_in_agriculture
4. Endophytes: key role players for sustainable agriculture: mechanisms, omics insights and future prospects | Plant Growth Regulation | Springer Nature Link