Nodu™
Crop-matched rhizobial inoculant
Biological nitrogen fixation
- Components
- Crop-matched rhizobia
- Crops
- Peanut · Soybean · Common bean · Cowpea · Pigeon pea · Mung bean · Black gram · Alfalfa
Rhizosphere consortium
A three-strain rhizosphere consortium, applied alongside your rhizobial inoculant, that strengthens nodulation and nitrogen fixation for better stands and higher yield across eight legumes. In peanut, the same shift in the root-zone microbiome is the focus of our peer-reviewed coupling research — where it is also associated with markedly lower soil A. flavus, the fungus that produces aflatoxin.
- Principal components
- Bacillus velezensis · Brevibacillus laterosporus · Paenibacillus mucilaginosus
- Crops
- Peanut · Soybean · Common bean · Cowpea · Pigeon pea · Mung bean · Black gram · Alfalfa
Nodulation & nitrogen fixation
Biological action
The strains reshape the rhizosphere to improve the nodulation environment for native or co-applied rhizobia, while stronger crop vigor sustains nitrogen fixation through pod fill. In peanut, our research also examines the aflatoxin side of the coupling — how the same shift in the root-zone microbiome relates to Aspergillus flavus, the fungus that produces aflatoxin — in peer-reviewed studies and multi-season OCRI-CAAS field trials.
Agricultural purpose
Amplified nodulation. More nitrogen fixed. Higher yield.
Fit within the programme
Orvan™ is a rhizosphere-coordination consortium, not a rhizobial inoculant. It carries no Rhizobium of its own, and no fungus either — all three strains are bacteria. Applied alongside (or on top of) your rhizobial inoculant, it amplifies the native and co-applied rhizobia already adapted to your soil. Fully complementary to existing programs. Non-GMO; all three strains spore-forming.
Composition & material characteristics
Bacillus velezensis
One of the three bacterial members of the Orvan consortium. Earlier research used the name B. amyloliquefaciens; the product’s taxonomic note explains the current identification.
Brevibacillus laterosporus
A bacterial member of the rhizosphere consortium. Orvan’s supporting results concern the combined product; they describe the performance of the consortium in its crop and trial setting.
Paenibacillus mucilaginosus
The third bacterial member of the consortium. Product records also retain the historical name Bacillus mucilaginosus used in the registration documentation.
Research & field performance
OCRI-CAAS RESEARCH COLLABORATION
Orvan connects a three-strain rhizosphere consortium with collaborative research involving the Oil Crops Research Institute, Chinese Academy of Agricultural Sciences. The product records bring together bacterial composition, crop-specific studies and multi-season field observations, including research on peanut nodulation, nitrogen fixation and root-zone health.
Field research & results
- Field-proven across all eight legumes: peanut (405 sites / 19 prov · +19.9%), soybean (253 / 18 · +16.1%), common bean (62 / 6 · +14.2%), cowpea (48 / 5 · +13.8%), pigeon pea (36 / 4 · +12.6%), mung bean (54 / 5 · +15.3%), black gram (30 / 4 · +11.9%), alfalfa (96 / 4 · +15.2%), each via its locally-adapted rhizobia.
- On peanut and soybean, in OCRI-CAAS trials: peanut +19.9% yield with >80% less soil A. flavus; soybean +16.1% with elevated isoflavone; nodules up to 8.5× / 3.7×; nitrogenase up to 10.7× / 4.8× — the higher peanut fold-changes occur where native rhizobia are scarce; multi-site demonstration averages are lower.
- In dedicated trials over three consecutive years, Orvan™-treated fields held a >10% yield gain even with 20–40% less synthetic nitrogen.
Crop applications
Crop-specific selection
Select the product edition and supporting information for the intended crop. Crop profiles connect the biological components with field observations and the relevant technical documents.
Application context
At sowing, matched to how the product reaches the crop: Base 30–60 kg/ha broadcast or banded with base fertilizer · Root 30–60 kg/ha dissolved in clean water and applied in-furrow through the planter · Coat 2.5 mL/kg seed on the seed, by hand or through a coater. The dose does not change by crop. A live-culture product: with a fungicide seed treatment apply that first, let the seed dry, then Orvan™; apply any rhizobial inoculant after Orvan™. Avoid copper fungicides, agricultural antibiotics, strong alkali (pH > 9) and chlorinated water (> 2 ppm). Blend with fertilizer immediately before application rather than storing a prepared blend. Storage differs by format: the dry formats keep at or below 30 °C with no cold chain and are used within 30 days of opening; Coat is held at 5–25 °C, must not freeze, and is used within 14 days of opening.
Species names follow current genomic taxonomy. Bacillus velezensis was reported as B. amyloliquefaciens in earlier studies and re-identified by whole-genome sequencing as the distinct species B. velezensis; Paenibacillus mucilaginosus was transferred from the genus Bacillus in 2010 and is listed under its basionym Bacillus mucilaginosus on its Chinese registration.
Select the product and application programme for the crop, growing conditions and applicable market label.
Quality & product characteristics
Product quality
Identity-verified (16S / WGS), purity-tested, batch CFU certification, per-formulation SDS; naturally isolated, non-GMO.
Technical specification
Registered technical indicator: total effective viable count ≥ 5×10⁸ CFU/g (Orvan™ Base granule). Viable count guaranteed to expiry; all three strains spore-forming, for heat and desiccation tolerance and no cold chain on the dry formats. Non-GMO, BSL-1.
Storage & product life
18 months from manufacture, sealed
Technical documents & support
Product information & application support
Contact Huasheng for technical information and application support for your crop and market. Please include your growing region and product requirements.
Orvan — Technology ProfilePDF · 8 pages · 521 KBDownload ↓Orvan — Safety Data Sheet (SDS)PDF · 6 pages · 197 KBOrvan Base granule only; other Orvan formats are outside this SDS.Download ↓Orvan — Technical Data SheetPDF · 4 pages · 518 KBDownload ↓Orvan — Compatibility ReferencePDF · 6 pages · 198 KBDownload ↓
Discuss this product →Crop data, specifications & supporting documents
Orvan™ across the eight legumes
One core three-strain consortium, tuned into a crop edition for each legume. Each row opens the product page for that crop.
| Crop | Edition | Leads on | Field-proven (Orvan™) |
|---|---|---|---|
| Peanut → | Orvan™ Peanut | Aflatoxin–nitrogen coupling | +19.9% · 405 sites / 19 provinces |
| Soybean → | Orvan™ Soybean | Nitrogen-fixation potentiation | +16.1% · 253 sites / 18 provinces |
| Common Bean → | Orvan™ Bean | Nitrogen-fixation potentiation | +14.2% · 62 sites / 6 provinces |
| Cowpea → | Orvan™ Cowpea | Nitrogen-fixation potentiation | +13.8% · 48 sites / 5 provinces |
| Pigeon Pea → | Orvan™ Pigeonpea | Nitrogen-fixation potentiation | +12.6% · 36 sites / 4 provinces |
| Mung Bean → | Orvan™ Mungbean | Nitrogen-fixation potentiation | +15.3% · 54 sites / 5 provinces |
| Black Gram → | Orvan™ Blackgram | Nitrogen-fixation potentiation | +11.9% · 30 sites / 4 provinces |
| Alfalfa → | Orvan™ Alfalfa | Amplified nodulation + stand establishment | +15.2% · 96 sites / 4 regions |
Formulations
Same biology, delivered to match your planter and mechanization.
≥ 5×10⁸ CFU/g
Orvan™ Base
Granule, 2–4 mm
Rate: 30–60 kg/ha
Best for: Broadcast or banded with base fertilizer
≥ 5×10⁹ CFU/mL
Orvan™ Coat
Liquid seed coating concentrate
Rate: 2.5 mL/kg seed
Best for: On seed, by hand or through a coater
Guaranteed under NDA
Orvan™ Root
Water-soluble powder
Rate: 30–60 kg/ha
Best for: Dissolved, in-furrow at sowing
Orvan™ Coat — water added at treatment
| Seed-treatment situation | Orvan™ Coat : water | Product rate |
|---|---|---|
| No chemical seed treatment — hand mixing | 1 : 1 | 2.5 mL/kg seed |
| No chemical seed treatment — mechanical treater | 1 : 0.5 | 2.5 mL/kg seed |
| Applied together with a chemical seed treatment | No added water | 2.5 mL/kg seed |
The product rate does not move: 25 mL treats 10 kg of seed and 250 mL treats 100 kg, whichever row you are on. Only the water changes, and only to carry that fixed dose evenly over the seed without over-wetting it. Where a chemical seed treatment is used, apply it first, let the seed dry, then apply Orvan™ Coat undiluted as the final layer.
Tank-mix compatibility — seed-applied formulations
This list covers the formulation that goes onto seed, Orvan™ Coat. It is co-formulation testing, not inference from mode of action. It does not extend to Nodu™ or Vigor™, which carry different organisms, and it does not apply to Orvan™ Base or Orvan™ Root — see the note at the end.
Cleared for co-application
| Class | Active ingredients tested |
|---|---|
| Oomycete fungicides | Metalaxyl-M, metalaxyl, hymexazol |
| Benzimidazoles | Carbendazim, thiophanate-methyl |
| Triazoles (DMI) | Tebuconazole, difenoconazole, triadimefon |
| Phenylpyrroles | Fludioxonil, including the metalaxyl-M + fludioxonil pack |
| Imidazoles and related | Prochloraz, fluazinam |
| Strobilurins (QoI) | Azoxystrobin |
| Insecticides | Thiamethoxam, clothianidin, imidacloprid, chlorantraniliprole |
| Biologicals | Rhizobial inoculants and other beneficial bacteria |
Not compatible
| Class | Active ingredients |
|---|---|
| Copper compounds | Copper hydroxide, cuprous oxide, thiodiazole-copper, kasugamycin-copper |
| Thiazoles | Zinc thiazole, benziothiazolinone |
| Quinolines | Oxine-copper |
| Agricultural antibiotics | Zhongshengmycin, kasugamycin, streptomycin |
| Other bactericides | Bismerthiazol, octylamine acetate, chloro-bromo-isocyanuric acid |
The pattern behind the two lists is straightforward. Nearly every fungicide used in seed treatment acts on fungi and has little activity against bacteria, so it can be co-applied. Products registered against bacterial disease — canker, wilt, soft rot, bacterial spot — are aimed at the same class of organism as the inoculant, and cannot. Two further points on copper: it should not be combined with strong acids or phosphate fertilisers, and an over-concentrated seed coating suppresses germination irrespective of the biology. Note also that this list names active ingredients. A commercial product also contains solvents, surfactants and, in many liquid formulations, an in-can preservative, none of which are covered here; where a specific product matters, test it.
Orvan™ Base and Orvan™ Root are placed in the soil and never contact a treated seed coat, so seed-treatment compatibility does not apply to them. Their compatibility question is a different one: what they are blended with. Urea hydrolyses to ammonia and lifts pH in the immediate surroundings; high-salt fertilisers such as potassium chloride and ammonium phosphates impose osmotic stress; superphosphate carries free acidity. None of this is prohibitive, but contact time is the exposure, so blend immediately before application rather than storing a prepared blend. Where a seed treatment is heavy enough to be a concern, moving the biology into the furrow removes the question rather than managing it.
Ordering & logistics
Packaging formats, minimum order quantity, and lead time depend on the formulation, the destination market, and the registration route that applies there. Tell us your crop, region, and intended volume and we will confirm exactly what is available to you.
Request a quotation- Origin
- Manufactured in China
Certifications & documents
- Registration
- MARA-registered microbial inoculant (granule, powder and compound forms)
- Standard
- GB 20287-2006
Non-GMOBSL-1ISO 9001 facilityEFSA QPS-listed (B. velezensis)
The SDS provided covers the granule formulation. For the SDS of other formulations, please contact us.
Full technical documentation available to qualified partners.
Related products
Vigor™
Plant growth-promoting bacteria
Roots & nutrient use
- Components
- Bacillus · Pseudomonas · Azospirillum
- Crops
- Peanut · Soybean · Common bean · Cowpea · Pigeon pea · Mung bean · Black gram · Alfalfa
Mycor™
Mycorrhizal inoculant
Root establishment & nutrient exploration
- Components
- Rhizophagus intraradices + Funneliformis mosseae
- Crops
- Grapes · Strawberry · Tomato
HUASHENG BIO
Good products. Lasting partnerships.
Tell us about your crop, market or technology. Our product and technical teams will help shape the next step.