Bentonite Sulphur 90

Bentonite Sulphur 90 is a fertilizer-grade formulation that combines elemental sulfur (90%) with bentonite clay (10%).

It’s designed to provide slow-release sulfur nutrition to crops and help acidify alkaline soils — one of the most efficient and farmer-friendly sulfur fertilizers available today.

Here’s a complete breakdown

Color: Yellow to light green
Odor: Odorless
Solubility: Insoluble in water (requires microbial oxidation to sulfate form)

How It Works (Mode of Action)

When Bentonite Sulphur 90 is applied to soil and moistened, the bentonite clay swells, breaking the granule into fine sulfur particles.
These fine sulfur particles are then oxidized by soil bacteria (mainly Thiobacillus species) into sulfate (SO₄²⁻) — the form that plants can absorb.
The oxidation process is gradual, providing long-term sulfur availability and reducing soil pH (acidification).

Agricultural Benefits

Sulfur Nutrition:

Supplies essential sulfur for protein and chlorophyll synthesis.
Promotes oil formation in oilseeds (e.g., mustard, sunflower, soybean).
Enhances grain quality in cereals and sugar content in sugarcane.

Soil Health:

Improves nutrient uptake (especially phosphorus and micronutrients).
Reduces soil alkalinity (pH) — helpful in calcareous soils.
Improves soil structure and microbial activity.

Long-Lasting Effect:

Provides slow and steady sulfur release — one application lasts for several months.

Recommended Crops

Oilseeds: Mustard, rapeseed, sunflower, soybean, groundnut
Cereals: Wheat, maize, paddy
Pulses: Gram, lentil, pea
Cash crops: Sugarcane, cotton, tea
Horticultural crops: Onion, garlic, citrus, fruits, vegetables

Products