Read it the way your agronomist will.
Every figure here has a link. Several of them are smaller than a competitor would print, and one of them is a hole in the evidence rather than a result.
Agricultural inputs have a credibility problem that agriculture earned by buying too many of them. Anyone selling into a directorate or a serious commercial grower is speaking to people who have already paid for a soil conditioner that did nothing, and who will hand this page to somebody with a statistics background.
So it is organised the way that person would want it: established, thin, missing.
1. Established — root-zone oxygen is a real constraint
Bhattarai and Midmore at Central Queensland University found that oxygating the rhizosphere through subsurface aerated drip raised cotton lint yield by 26 per cent against non-aerated drip on a Vertosol. A heavy cracking clay, under subsurface irrigation, is close to the worst case for gas exchange, which is exactly why the effect shows up there.
A 2010 paper from the same group put watermelon fruit yield at 24.6 tonnes per hectare under oxygation against 14.5 on the control, with total soluble solids 19 per cent higher. Pumpkin in the same work moved from 26.3 to 28.9 tonnes per hectare.
Note what that pairing does. Two cucurbits, one soil, one season, and roughly a sevenfold difference in the size of the response. Any brochure printing the watermelon figure alone has made an editorial decision you should know about.
2. Established, and more useful — the pooled effect
A meta-analysis published in Plant and Soil pooled 2,398 data pairs from 35 peer-reviewed articles on micro-nanobubble water irrigation. It found water-use efficiency up about 11.15 per cent, crop yield up about 13.55 per cent, root dry weight up about 27.21 per cent and photosynthetic rate up about 17.38 per cent.
Thirteen and a half per cent is a long way below seventy. It is also the number we scope against, because a pooled estimate across thirty-five studies is a far better predictor of what happens on an unremarkable field than the best result anybody ever published.
Root dry weight rising more than yield is worth a moment. It suggests the plant is investing in root system, which is consistent with the proposed mechanism and inconsistent with the effect being a measurement artefact.
3. Established, with a caveat — the fertiliser interaction
Bian and colleagues, publishing in Plants in 2024, found micro-nanobubble drip irrigation combined with phosphorus raised maize yield by 29.21 to 41.08 per cent, and lifted agronomic phosphorus-use efficiency by up to 134.91 per cent at reduced phosphorus application rates.
That last figure is the interesting one, and it is easy to misread. It is not an oxygen effect standing alone. It describes the same fertiliser doing more work, which matters most to growers whose phosphorus cost is high or whose nutrient export is regulated — and it is the mechanism behind the only environmental claim we make on this site.
4. Established — the physics underneath
Nanobubbles are a characterised class of object rather than a marketing term. Below roughly 1,000 nanometres, bubbles stop rising and bursting; they hold a negative surface charge, measured for oxygen nanobubbles at around −34 to −45 mV, which prevents them coalescing back into large bubbles that would simply surface and vent.
The transfer consequence is measured. Work in Science of the Total Environment recorded a gas–liquid mass transfer coefficient roughly eleven times higher for nanobubble aeration than for conventional bubbles delivering the same gas volume. That is the reason meaningful dissolved oxygen can still be present at the emitter rather than lost in the mainline.
The uncomfortable section
What is thin, and what is simply absent.
If a supplier's evidence page has no section like this one, the missing section is the one you needed.
No saline-water oxygation trial. This is the important one. Every oxygation result cited above was obtained on non-saline irrigation. The argument that oxygen matters more where salinity is also present is mechanistic and, we think, sound. It is not a published finding, and Saline Ag Supercharge is therefore sold as a trial rather than as a known quantity.
Concentration of authorship. Much of the early field work comes from one Australian group. The 2026 meta-analysis widens the base considerably, but a reviewer noting that the foundational trials share an institution is making a fair point.
Radical chemistry. Whether nanobubbles themselves generate hydroxyl radicals is contested: Moleaer and Arizona State University reported reactive oxygen species in 2020, and a controlled 2023 study by Chae and colleagues in ACS ES&T Engineering found generation minimal at best under ambient conditions. Nothing in our agronomic case depends on the answer.
Nothing published on our equipment. No peer-reviewed trial exists of NanoponiX hardware on a commercial farm. Other people's trials establish the mechanism. They say nothing about our skid on your block, and we will not let a citation do work it cannot do.
No published cost per hectare. Energy draw depends on flow, pressure, gas selection and running hours. It is metered during the trial rather than estimated in advance.
How numbers are handled on this site
Every figure carries a source you can open. Where two figures in the same literature disagree, the smaller one is quoted. Where a source is secondary reporting rather than a primary document, the copy says so at the point of use.
Claims about what this system will do on a specific block are made after the trial, in writing, with the assumptions attached. Not before, and never as a range borrowed from somebody else's soil.
Sources cited on this page
- Bhattarai & Midmore — Benefits of oxygation of subsurface drip irrigation, Crop & Pasture Science.
- Bhattarai, Dhungel & Midmore — Oxygation of cucurbits on heavy clay soil in the semi-arid tropics, Journal of Agricultural Science, 2010.
- Plant and Soil — Global meta-analysis of micro-nanobubble water irrigation, 2026.
- Bian et al. — Micro-nanobubble water drip irrigation with phosphorus on maize, Plants, 2024.
- FAO Global Soil Partnership — Global assessment of salt-affected soils.
- Science of the Total Environment — Mass transfer of nanobubble aeration and its effect on biofilm growth.
- Chae, Kim, Kim & Fortner — Reactive oxygen species generation from nanobubbles, ACS ES&T Engineering, 2023.
- Springer — Nanobubble stability and zeta potential.
- NOAA National Centres for Coastal Ocean Science — Nanobubble technology validated for remediation of harmful freshwater algal blooms, 2018.
- USGS — Sources and yields of nitrogen and phosphorus in the Mississippi/Atchafalaya basin.
Questions from technical reviewers
Answers that do not improve with distance
Is most of the oxygation literature from one research group?
A large share of the early field work is Bhattarai and Midmore at Central Queensland University, and treating results from one group on a limited set of soils as settled agronomy would be a mistake.
The 2026 Plant and Soil meta-analysis widens the base considerably, pooling 2,398 data pairs from 35 articles. Its effect sizes are also noticeably more modest, which is what you would expect and part of why we trust it.
Why is the pooled effect so much smaller than the headline trials?
Because that is what pooling does to a literature with a wide response range. Single trials reach roughly 70 per cent. The meta-analysis puts mean yield response near 13.55 per cent and water-use efficiency near 11.15 per cent.
The pooled figure is the better planning number. It is the one used when a programme is scoped.
Source: Plant and Soil, 2026
Has NanoponiX equipment itself been trialled and published?
No. There is no peer-reviewed publication of NanoponiX hardware on a commercial farm, and pointing at somebody else's trial as though it were ours would be the kind of move this page exists to rule out.
Other people's work establishes the agronomic mechanism and the gas-transfer physics. A paired-block trial establishes what our equipment does on your ground.
What does this cost in energy per hectare?
No published figure, because it moves with flow rate, operating pressure, gas selection and how many hours a season your system runs.
Energy draw is metered during the trial alongside the agronomic measurements, so the cost side of the case is produced by the same exercise as the benefit side rather than being asserted beforehand.
The next step is a field, not a meeting
Thirteen and a half per cent, on your soil, or nothing.
The pooled number is the one to plan against and it is still somebody else's average. One paired block for one season turns it into a figure about your ground — and if your agronomist has already found a hole in this page, lead with that.