Huasheng Biosciences

Orvan™ strengthens the legume–rhizobia system.

Orvan™ — Rhizosphere coordination consortium. Amplified nodulation. More nitrogen fixed. Higher yield.

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 Aspergillus–Rhizobia Coupling (ARC) research — where it is also associated with markedly lower soil A. flavus, the fungus that produces aflatoxin.

How it works

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.

Where it fits

Orvan™ is a rhizosphere-coordination consortium, not a rhizobial inoculant. It carries no Rhizobium of its own. 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.

Strains

Bacillus velezensis · Brevibacillus laterosporus · Paenibacillus mucilaginosus.

Field-proven

  • Field-proven across all eight legumes: peanut (325 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.

Formulations

  • Orvan™ Ground — Granule 2–4 mm; ≥ 5×10⁸ CFU/g; 60 kg/ha; Broadcast / banded with base fertilizer
  • Orvan™ Precision — Microgranule; ≥ 1×10¹⁰ CFU/g; 5–10 kg/ha; Bulk-blend, mechanized farms
  • Orvan™ Flow — Liquid; ≥ 1×10⁹ CFU/mL; 1–3 L/ha; Planter in-furrow / 2×2
  • Orvan™ Seed — Peat seed inoculant; ≥ 2×10⁹ CFU/g; 3–5 g/kg seed; On-seed treatment
  • Orvan™ Coat — Liquid seed coat; ≥ 5×10⁹ CFU/mL; 2–4 mL/kg seed; Commercial seed-treatment lines
  • Orvan™ Integra / Duo — NPK-coformulated / dual-chamber; ≥ 1×10⁷ CFU/g; 450 kg/ha (as compound); Integrated nutrient management

How to use

At sowing, matched to your planter: Ground 60 kg/ha with base fertilizer · Precision 5–10 kg/ha bulk-blend · Flow 1–3 L/ha in-furrow · Seed 3–6 g/kg · Coat 2–4 mL/kg. The granule performs best banded with base fertilizer into moist soil — keep soil moisture through early establishment, as drought reduces efficacy. A live-culture product: do not co-apply with fungicides (apply Orvan™ last, after any fungicide seed treatment); avoid copper fungicides, strong alkali (pH > 9), and chlorinated water (> 2 ppm). Store cool, dry, and out of direct sun.

Registered technical indicator: total effective viable count ≥ 5×10⁸ CFU/g (Orvan™ Ground granule). Viable count guaranteed to expiry; all three strains spore-forming for heat and desiccation tolerance; granule shelf life 18 months. Non-GMO, BSL-1.