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Agricultural Spreading and Penetrating Adjuvant
Trisiloxane adjuvant for soil-applied pesticide programs — spreads the application evenly across the soil surface, then improves incorporation-water penetration to the target pest or weed-seed zone.
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Dual-Action Adjuvant for Soil-Applied Pesticide Programs
Agricultural Spreading and Penetrating Adjuvant is a trisiloxane-based adjuvant formulated around a soil-applied application context rather than foliar spraying — its two named functions, spreading and penetrating, both refer to soil-surface and soil-profile behaviour: spreading the applied liquid evenly across the soil surface immediately after application, and then penetrating downward through the soil profile as irrigation or rainfall incorporates the product, carrying soil-applied actives such as pre-emergent herbicides, soil insecticides, and nematicides to their intended zone of activity.
At 0.04–0.08% v/v, the adjuvant reduces the surface tension of the applied spray solution enough to prevent the pooling and uneven surface distribution that can occur when soil-applied products are sprayed onto variable soil surface conditions — crop residue, uneven tilth, or compacted zones — ensuring the active ingredient is distributed uniformly across the target area before incorporation begins, rather than concentrating unevenly in low spots or being intercepted disproportionately by surface residue.
The penetrating function addresses a separate stage of the application process: after surface distribution, the same surfactant reduces the surface tension of the incorporating water (irrigation or rainfall) enough to improve its downward movement through the soil profile, helping carry the active ingredient to the depth where target pests, weed seeds, or nematodes are actually present, rather than allowing the active to remain concentrated in the top few millimeters of soil where it may degrade via UV exposure or volatilization before reaching its target.
This is a meaningfully different mechanism from a foliar spreading or penetrating adjuvant: there is no leaf cuticle or stomatal pathway involved, and the relevant physical process is capillary and gravitational water movement through soil pore spaces rather than surface tension effects on a leaf. Field trials measuring herbicide activation depth show 20–30% deeper and more uniform incorporation into the weed-seed germination zone when this adjuvant is included in the application, compared to the same herbicide applied without an incorporation-assisting adjuvant.
The product is compatible with the pre-emergent herbicide, soil insecticide, and nematicide chemistries most commonly requiring rainfall or irrigation incorporation, and is applied at the time of the original soil treatment rather than as a separate irrigation-system additive.
Why Soil-Applied Programs Need This Adjuvant
Mechanism of action
Agricultural Spreading and Penetrating Adjuvant reduces the surface tension of the applied spray solution to promote even distribution across the soil surface immediately after application, preventing the pooling in low spots or interception by crop residue that can occur on uneven or trash-covered soil surfaces.
As irrigation or rainfall subsequently moves across and into the soil, the same reduced surface tension improves the incorporating water's ability to move through soil pore spaces via capillary action and gravitational flow, carrying the previously surface-distributed active ingredient downward toward the depth where weed seeds germinate or soil pests are present.
This two-stage mechanism — even surface distribution first, then improved profile penetration during incorporation — is why the product is named for both functions together: each stage addresses a separate point of failure in soil-applied pesticide programs, and both must work for the active ingredient to reach its target zone effectively.
Combined surface-spreading and soil-penetration action delivers meaningfully deeper incorporation than spreading alone.
Product specifications
| Parameter | Value |
|---|---|
| Appearance | Clear liquid |
| Active content | ≥ 97% (trisiloxane surfactant) |
| Viscosity (25°C) | 22 – 36 cSt |
| Density (25°C) | 1.00 – 1.03 g/cm³ |
| Cloud point (1% aq.) | > 34°C |
| Flash point | > 90°C |
| pH (1% aq.) | 5.5 – 7.0 |
| Storage stability | 24 months (cool, dry) |
Performance data
- 2021
Company Establishment
- 10000m²
Advanced Factory
- 50+
Exporting Country
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Performance benchmark
| Property | This soil-applied adjuvant | Foliar spreading adjuvant | No adjuvant |
|---|---|---|---|
| Target mechanism | Soil-surface + soil-profile | Leaf spreading only | None |
| Incorporation depth improvement | +20–30% | Not applicable | Baseline |
| Surface distribution uniformity | Improved on variable soil | Not tested for soil use | Variable |
| Suited to soil-applied chemistries | Purpose-built | Not designed for this | N/A |
| Residue interception reduction | Yes | Not applicable | No |
Soil-applied herbicide incorporation results
Source: soil-applied herbicide incorporation field trials, 2024–2025.
Tank-mix compatibility
Fully compatible Test before full mix
Dilution calculator
Enter your spray tank volume to estimate the recommended dose (0.06% v/v typical) for your soil-applied program.
How to apply
Safe use guidelines
- Personal protection — Wear gloves and eye protection during mixing.
- First aid — Rinse skin/eyes with water; if ingested, seek medical advice.
- Storage — Keep sealed, cool, and dry, away from direct sunlight.
- Environmental — Biodegradable; low aquatic toxicity.
- Disposal — Dispose of containers per local regulations; do not contaminate water sources.
- Shelf life — 24 months in unopened original container.
Crops & use cases
- Pre-emergent herbicide programs — corn, soybean, cotton — weed-seed germination zone activation.
- Soil insecticide programs — root-zone pest control requiring adequate incorporation depth.
- Nematicide programs — vegetable and specialty crop nematode management.
- Reduced/no-till and residue-covered fields — improved distribution despite surface trash interference.
Also used in variable-tilth field conditions where uneven soil surface compaction has historically caused inconsistent weed control results.
Why it outperforms
- Two-stage mechanism — addresses both surface distribution and profile penetration, not just one.
- Deeper, more uniform incorporation — 20–30% improvement in herbicide activation depth.
- Residue-tolerant — reduces disproportionate active-ingredient interception by crop residue.
- Matched to soil-applied product types — purpose-built for pre-emergent herbicides, soil insecticides, nematicides.
Application guidelines
- Application timing: apply with the soil-applied product at treatment time, not separately via irrigation
- Residue-covered fields: use the higher end of the rate range to improve penetration through surface trash
- Incorporation planning: ensure adequate irrigation or expected rainfall follows application for full benefit
- Variable-tilth fields: particularly valuable where soil surface compaction varies across the field
Packaging & shelf life
- Packaging: 1 L, 5 L, 20 L, 200 L drums / IBC totes.
- Storage: cool, dry, away from direct sunlight; 5–40°C.
- Shelf life: 24 months in unopened original container.
Global quality benchmarks
| Test item | Standard requirement | Our performance |
|---|---|---|
| Surface tension (0.1%) | ≤ 26 mN/m | 23 mN/m |
| Incorporation depth improvement | ≥ 10% | 20–30% |
| Residue interception reduction | Not tested | Confirmed improvement |
| Foam height (1 min) | < 25 mL | < 20 mL |
| Biodegradability | OECD 301 | Readily biodegradable |
Frequently asked questions
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