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Neutrog · NPK compound

Prolifer8

Prolifer8 is a npk compound fertiliser from Neutrog. Its published analysis (N-P-K-S) is 1.75-6-1.15-0.55, supplying nitrogen 1.75%, phosphorus 6%, potassium 1.15%, sulphur 0.55%, calcium 17%, magnesium 0.85%, zinc 0.003%. We hold no verified price for it.

% nitrogen – phosphorus – potassium (N–P–K)

1.75–6–1.15

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Last checked 2026-10-17 · How we check · Report an error

At a glance

Prolifer8 specification
BrandNeutrog
TypeNPK compound
FormNot stated
We list it underHorticulture
Organic-certifiedNot stated
Pack sizesNot verified
Safety data sheetNot linked yet; ask the supplier
Nitrogen (N)1.75%
Phosphorus (P)6%
Potassium (K)1.15%
Sulphur (S)0.55%
Calcium (Ca)17%
Magnesium (Mg)0.85%
Zinc (Zn)0.003%

“—” means not published or not verified. Not published or not verified: Copper (Cu), Boron (B). Analysis as published by the manufacturer; always read the current label.

Note: Analysis is on a dry-weight basis (as printed). Also Mn 0.004% (not in the site's nutrient columns). The page also prints a separate (lower) column for WA-registered batches; this entry uses the standard column.

Composition

  • N1.75%
  • P6%
  • K1.15%
  • S0.55%

Who it may suit

  • Where sulphur is needed as well: it supplies 0.55% S.
  • Where phosphorus is needed: it supplies 6% P (as published).
  • Where potassium is needed: it supplies 1.15% K.
  • We list it under horticulture.
  • Crop-by-crop suitability is not something we have verified for this product. Use your soil test and agronomist.

Application calculator

How much of this product delivers a given amount of nitrogen, and what that costs. Working out the target? See the nitrogen rate calculator. The starting value is an example, not a recommendation.

Product to spread
2,857 kg/ha

Rate = target ÷ 1.75% nitrogen (N). Excludes freight, spreading, GST and any nitrogen lost to the air. Not a recommendation: always check with your agronomist before acting.

Nitrogen loss

What this does not show: We do not rate nitrogen loss for this product because its nitrogen form is not stated in the data we hold. Check the label and ask your agronomist.

Where to buy Prolifer8

No verified supplier page for this product. Use a stockist finder below.

    Stock and prices not checked. Confirm with the supplier.

    Links were opened and read on 17 Oct 2026 to confirm the page loads and names the product or brand. None are affiliate links.

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    Sources and last updated

    Page last updated 2026-10-17. Data policy: unknown values are shown as “—”, never guessed. Recommendations on this site are sponsor-blind; see methodology.

    General information only. Check with your agronomist or local advisor. More