Guidance on Product Application


The key target, for all crops, is to deliver a dilution of 1:50 of the extract to the active growing meristems (especially roots) / active young leaves of the plant.

In most cases this requires 10 litres extract per hectare, delivered in 450 – 500 litres spray. However, good results have been obtained by some growers with lower volume spraying, eg down to 5 litres extract in 200-250 litres spray.

For treatment of small areas of crop dilute 1 litre in 40 – 50 litres of water and apply over an area up to 500 square metres.

Apply as a coarse or medium spray by handheld, pedestrian controlled or vehicle mounted sprayer.


Spring barley, wheat and oats.

Minimum recommendation is a single treatment at 1:50 dilution when the first node is detectable, ideally at 10.0 litres extract in 450 litres spray. At this volume there will be greater effect on tillering as well as the primary effect on grain initiation/formation.
A further application of 5 litres extract per hectare in summer (early green ear stage) will encourage grain yield/quality; although many fully organic growers achieve optimum results using 10.0 litres extract in 450 litres spray, in all applications.


Grazing: 5 litres in 250 – 450 litres spray, just following first growth flush and repeated at 3 week intervals. 10 litres extract per hectare in 450 litres spray is best.

Silage: 10 litres per hectare in 450 litres spray, as spring growth commences, with 5 litres per hectare applied 2-3 weeks before cut.


10 litres per hectare in 450 litres spray, two weeks after emergence, with follow-up at 5 litres per hectare at over 30% groundcover stage, especially for main crops). Can be applied with blight treatment if appropriate (consult our technical support for guidance).

Privacy Policy
Copyright © 2019 Orkney Seaweed Company Ltd — Uptown Style WordPress theme by GoDaddy