Bio Charge - SILARA N30
Product safety information
Download Safety Data Sheet (PDF)
Version 1.0 · 15 September 2026 · 6 pages · 323 KB
SILARA N30 is a New Zealand-made, high-surface-area amorphous colloidal silica concentrate designed to fit practical pasture, cropping, horticulture and viticulture programmes. A dissolved silicon fraction provides immediate availability, while the colloidal silica reservoir is designed to progressively release soluble silicon.
SILARA N30 research
Explore the science behind monosilicic acid, aluminium interactions, phosphorus availability, potassium nutrition and drought tolerance - and the outcomes Bio Charge aims to match with SILARA N30.
Available now. Available over time.
- Dissolved silicon fraction: provides an immediately available silicon component following application.
- Colloidal silica reservoir: designed to progressively release soluble silicon over time.
- High-surface-area particles: nanometre-scale amorphous silica provides a large reactive surface in a low-volume concentrate.
- Programme flexibility: designed to fit alongside compatible inputs in pasture, cropping, horticulture and viticulture programmes.
SILARA N30 is intended to support the plant as part of the wider nutrition and management programme for the intended crop.
Key pasture benefits
- Root development: supports stronger, deeper roots for improved access to water and nutrients.
- Plant structure: supports stronger stems and leaves and may help maintain a productive pasture stand.
- Photosynthetic performance: designed to support efficient photosynthesis and productive growth.
- Stress tolerance: supports the plant’s response to drought, heat and other environmental stresses.
- Nutrient efficiency: designed to work alongside nitrogen, phosphorus and other nutrients.
- Dry-matter potential: developed to support productive growth and more usable feed from every hectare.
Ideal for
- Actively growing pasture
- Suitable cropping, horticulture and viticulture systems, with crop-specific rate and timing confirmed by Bio Charge
- Pasture programmes using liquid nitrogen
- Urea and ammonium sulphate programmes
- Compatible foliar nutrition programmes
- Programmes using gibberellic acid, subject to compatibility testing
- Farms looking for a low-volume silicon input
- Pasture programmes focused on roots, resilience and dry-matter production
Application and mixing
Coverage
- 1 litre treats approximately 3.3 hectares.
- One 20-litre container treats approximately 66 hectares at the typical rate.
Mixing order
- Part-fill the tank: fill the spray tank one-third to one-half with clean water and begin agitation.
- Add SILARA N30: add the required amount while maintaining agitation.
- Add compatible products: add other fertilisers, trace elements or additives according to their label directions.
- Top up: fill the tank to the required water volume and maintain agitation through mixing and application.
Best results
- Apply to actively growing pasture and other suitable cropping, horticulture and viticulture systems. Confirm the appropriate rate, timing and compatibility for the intended crop and programme with Bio Charge. The 300 mL/ha rate is the typical pasture rate.
- Maintain agitation during mixing and application.
- Conduct a jar test before mixing with unfamiliar products.
- Use clean water and suitable application equipment.
Storage and handling
- Store in the original container away from direct sunlight.
- Protect from frost.
- Agitate before use.
- Clean application equipment after use.
- Always read and follow the current product label.
SILARA N30 research
Published silicon research provides a strong biological rationale for evaluating SILARA N30. The studies below used other silicon formulations, application methods and growing conditions, so their findings should not be treated as guaranteed SILARA N30 results.
Read the research and original papers
Download the branded research brief (PDF)
View the ryegrass research
View the kiwifruit research
View the potato research
View the cherry research
Explore the full Bio Charge range.
View the current company & product brochureSilicon support for pasture, cropping, horticulture and viticulture.
SILARA N30 is a high-surface-area amorphous colloidal silica concentrate designed to fit practical pasture, cropping, horticulture and viticulture programmes. It combines immediate silicon availability with a reservoir intended to release soluble silicon progressively.
Available now. Available over time.
A dissolved silicon fraction provides immediate availability, while the high-surface-area amorphous silica reservoir is designed to progressively release soluble silicon.
Support the plant from roots to dry matter.
Root development
Supports stronger, deeper roots for improved access to water and nutrients.
Plant structure
Supports stronger stems and leaves and may help maintain a productive pasture stand.
Photosynthetic performance
Designed to support efficient photosynthesis and productive pasture growth.
Stress tolerance
Supports the plant's response to drought, heat and other environmental stresses.
Nutrient efficiency
Designed to work alongside nitrogen, phosphorus and other nutrients in the wider programme.
Dry-matter potential
Developed to support productive growth and more usable feed from each hectare.
A low-volume addition to the normal spray programme.
Mix with water and apply to actively growing pasture. At the typical pasture rate, one litre treats about 3.3 hectares and a 20-litre container treats about 66 hectares. Confirm the appropriate rate, timing and compatibility for other suitable cropping, horticulture and viticulture systems with Bio Charge.
Water first. SILARA N30 next.
Fill the spray tank one-third to one-half with clean water and begin agitation.
Add the required amount of SILARA N30 while maintaining agitation.
Add other fertilisers, trace elements or additives according to their label directions.
Fill to the required water volume and maintain agitation through mixing and application.
Compatibility: Confirm compatibility with the intended inputs and programme. Conduct a jar test for unfamiliar combinations and follow product labels.
Storage and handling: Keep in the original container, out of direct sunlight and protected from frost. Agitate before use, clean equipment after application, and always follow the current product label.
A strong rationale. A clear evidence boundary.
Published silicon research provides a serious basis for field evaluation across pasture and selected high-value crops.
SILARA N30 is designed for pasture, cropping, horticulture and viticulture programmes. Confirm crop-specific rates, timing and compatibility with Bio Charge. The studies below used different silicon forms, rates, crops and environments. They support the biological rationale and trial design, but they are not proof that SILARA N30 will reproduce the same results. Product-specific New Zealand trials are required before outcome claims are made.
Roots, recovery and dry matter
A 2025 controlled pot study using Optysil on two turf ryegrass cultivars reported 12.5% more root dry mass and 4.5% more shoot dry mass across the experiment. Four sprays supplied a nominal 100 g SiO₂/ha each. These findings support evaluation and do not demonstrate SILARA N30 pasture performance.
Kiwifruit firmness and storage
‘Hayward’ research using orthosilicic acid found higher firmness and lower weight loss after cold storage and ripening. Ethylene and respiration effects depended on stage and treatment, as explained in our full-paper summary. This supports New Zealand evaluation; it does not demonstrate SILARA N30 orchard or postharvest performance.
Potato yield under field conditions
Polish field research using Optysil, containing sodium metasilicate and iron chelate, reported higher early total-tuber yield in two of three seasons. The higher dose was 46.5 g elemental Si/ha per spray. These findings support local trials; they do not establish SILARA N30 potato rates or performance.
Sweet cherry cracking and firmness
Sweet-cherry studies using other silicon treatments report lower cracking and improved firmness. The 2025 paper contains conflicting figures, explained in our research summary. A SILARA N30 cherry programme requires its own crop-safety, rate and timing validation.
Put silicon research to work on your farm.
Talk with BioCharge about application rates, timing and tank-mix compatibility for pasture, cropping, horticulture and viticulture programmes.