The calculator shows the forest fertilisation potential of the site and calculates the cost of fertilisation and the carbon sequestration benefits
The forest calculator shows the forest fertilisation potential of the site and calculates the cost of fertilisation and the carbon sequestration benefit, thus making it easier for the forest owner to assess the fertilisation decision. The user interface of the service utilises public forest resource information.

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That’s a remarkable amount of work hours for a single machine, the Norcar 600 owned by Erkki Rinne is taken well care of, it even has the original Diesel engine.
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Kieran Anders is a forestry contractor working in the lake district. His work involves hand cutting and extracting timber using a skidder and tractor-trailer forwarder.
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It is not possible to eliminate chain shot, but there are simple steps that can be taken to reduce the risk.
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Arwel takes great pride in the fact that the mill has no waste whatsoever, “the peelings are used for children’s playgrounds, gardens and for farm animals in barns in the winter and the sawdust has multiple uses in gardens and farms as well.
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Timber hauliers need to encourage young blood in, and also look after the hauliers we have, we need make the sector a safe and positive place to work.
FIND US ON
Yara Finland and Mtech Digital Solutions Oy have developed a calculator that provides an estimate of the fertilization potential of a forest plot. The easy-to-use Forest Calculator provides fertiliser recommendations for the site in exchange for the property identifier and also provides an estimate of the fertilisation costs and calculated carbon sequestration caused by fertilisation.
“Fertilisation is the most profitable individual forest management measure. However, it can be challenging to assess the suitability of forest fertilisation or the right fertiliser for one’s own forest plot. The forest calculator makes it significantly easier for forest owners to make a fertilisation decision,” says Juho Salmi, Product Manager for forest fertilisers at Yara.
“Yara’s calculator shows the most profitable forest fertilisation sites. Forest owners are familiar with the map-based interface, and the calculator is easy to use as a document for planning. As a forest owner myself, I found this project interesting and the solution necessary,” says Mikko Jääskeläinen, Commercial Director at Mtech. Mtech has implemented the user interface of the Forest Calculator.
The forest calculator can be found on Yara’s website at yara.fi/metsa or directly at metsalaskuri.fi. The service can also be used in the My Yara service for Yara’s customers.
The calculator is based on public forest resource information
The forest calculator has been implemented using public forest resource information. The forest resource information is updated to the calculator from time to time, so the measures and changes that have taken place in the forest will be visible with a slight delay.
In calculating the potential of forest fertilisation, the calculator utilises the growth models of reproductive fertilisation, the figures of which are very moderate in the light of current research.
“However, the latest data is not comprehensive enough to be used to update the growth models that are commonly used and cover the whole of Finland,” Salmi says.
Read more about the Forest Calculator at yara.fi/metsa or in the My Yara service.

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Written by loggers for loggers and dedicated solely to the equipment used in forestry operations.
