Organic SilageKing

Natural silage additive for well preserved, high quality feed.

>> Looking for the non-organic version?

A biological silage preservative activates the ensiling bacteria to preserve good quality silage and reduces the yeasts and fungi that can spoil it.

Organic SilageKing is a silage additive mixture of fermentation extracts, nutrients and microbial stimulants that delivers dual-action benefits for feed quality, including:

  • Activating beneficial ensiling bacteria on forage to produce the lactic and acetic acids required to properly ensile grass and cereal
  • Inhibiting the growth of the yeasts and fungi that use up feed energy, heat bales and produce mycotoxins that affect animal health.

Designed and manufactured in New Zealand specifically for and with Kiwi farmers and contractors, Organic SilageKing silage additive comes in two forms:

  • An easy-to-store liquid that is applied straight from the can through one of our custom Ascot Pump applicators with in-cab control and volume monitor
  • Granules applied through our Ascot Pumps Granule Applicator with in-cab control.

Contact a BioStart team member to discuss any specific application needs.

BioStart Organic SilageKing works best with good silage-making practices, including:

  • Harvesting your crop when whole plant matter is between 25–35%
  • Tightly compacting and securing your pit silage stack with a weighted cover quickly to exclude air.

Organic SilageKing is certified organic.

Directions for use

Application rate
SilageKing Liquid

Standard round bales: 90 mL/bale

Pit silage: 150 mL/wet tonne

SilageKing Granules

Standard round bales: 100gm/bale

Pit silage: 170gm/wet tonne


Material Safety Data Sheet

View here

Label information

Download the product label here.

Handling precautions

When applying product avoid contact with eyes and skin. Wear protective clothing, gloves and goggles. Flush the liquid applicator thoroughly with water after use. Clean out the granule applicator with compressed air.  Do not eat or drink while using products. Wash hands and face before meals and after work. Wash protective clothing after use.

Storage instructions

Store out of direct sunlight and below 30°C, otherwise, product efficacy may be affected.

Empty container disposal

Triple rinse and return to an approved recycling centre.

Label information

Download the product label here.

Empty container disposal

Triple rinse and return to an approved recycling centre.