Foliar nitrogen fixing spray: what our first BactoStym Nitro results show
What we tested
We wanted to look at foliar nitrogen support in a clean and controlled way, so we set up a comparison in a nitrogen-free growth medium. One series received BactoStym Nitro. The second series received a market-leading foliar nitrogen-fixing benchmark. (We then sampled both series over time and asked an independent external laboratory to analyse the nitrogen profile.)
The goal was simple: remove added nitrogen from the system, then see how key nitrogen forms changed over time.
What the first results showed
- The clearest signal came from ammonium nitrogen.
In the BactoStym Nitro series, ammonium nitrogen rose strongly through the test window, moving from 1.5 at T0 to 35.7 at T1, then to 60.9 at T2.
In the market-leading benchmark series, ammonium nitrogen stayed much lower, moving from 3.0 at T0 to 4.7 at T1, then falling to 0.6 at T2.
- We also saw a difference in Kjeldahl nitrogen.
The benchmark series trended down from 223 at T0 to 118 at T2. By contrast, the BactoStym Nitro series rose overall from 129 at T0 to 170 at T2.
- Meanwhile, nitrite nitrogen stayed below the lab quantification limit in both series throughout the test.
In simple terms, the lab comparison showed a much stronger ammonium nitrogen trend in the BactoStym Nitro series than in the benchmark series.
Why we think that matters
A lab is not a field, and we want to be clear about that.
However, this kind of controlled test still matters. Because the growth medium contained no added nitrogen, it gave us a cleaner way to see whether measurable nitrogen forms built up over time.
That is why we see these results as important early evidence. They do not prove whole-field performance on their own. However, they do show a strong enough signal to justify serious on-farm validation.
What comes next
That next stage is already underway.
Last season, we started independent field trials of BactoStym Nitro through an accredited institution that runs recognised agronomic evaluations. Those results are now being processed, and we expect them in the coming months.
So, this is where we are today:
We have a controlled nitrogen-free comparison that showed a strong ammonium nitrogen response in the BactoStym Nitro series.
Now we are waiting for the independent field data that will show how that translates under practical farm conditions.
Why we are sharing this now
We are sharing this as a watch this space update from BactoTech.
Too often, biological products get discussed in broad claims. We would rather show the first controlled results clearly, explain what they do and do not mean, and then follow with field data when it is ready.
What BactoStym Nitro is designed for
BactoStym Nitro is a foliar microbiological spray designed to support nitrogen efficiency when crops do not respond as expected.
In practical terms, it fits the moment when:
– nitrogen is on,
– the crop still looks flat or patchy,
– and the grower wants a foliar biological support tool rather than another soil input.
Watch this space
We will share the independent field-trial results as soon as they are available. For now, the first message is clear: our controlled lab work showed a strong nitrogen trend in the BactoStym Nitro series, and the next step is real-world validation.
Read the full article here: https://bactotech.co.uk/foliar-nitrogen-fixing-spray/

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