Organic Fertiliser Calculator

Tell us what you're growing — we'll build your recipe.

What are you growing?

Select your crop

Total area (m²)

Application depth

Soil type

Include pH amendment

Raises soil pH. For acidic soils below pH 6.0. ~37% Ca.

Broadcast evenly and allow 1-2 weeks before planting.

Application rate

pH neutral Ca & S. For clay/sodic soils. ~23% Ca, 18% S.

Can be applied same time as base recipe.

Application rate

Lowers soil pH. For alkaline soils above pH 7.0.

Requires microbial activity to convert — allow 8-12 weeks before planting.

Application rate

Ingredient	Rate/m²	Total Qty	Unit Cost	Line Total

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