During the summer I’ve been working with the Swarm Knowledge Hub at Cornwall’s Duchy College. We’ve been building an android application that forms part of a scheme to highlight the value of organic fertilisers compared to costly and unsustainable synthetic fertilisers.
The core of the software is a calculator based on tables provided by DEFRA (the UK government’s Department for Environment Food & Rural Affairs) which provides the quantities of nitrogen, phosphorus and potassium nutrients provided by different types of manure spread on different types of soils.
Farmers are required to supply records of the fertiliser they use to DEFRA, so the program also allows you to input your fields and record the levels of nutrients spread on each one separately. You can then export the data as a csv file over email.
We are planning a workshop with local farmers in the coming weeks, which I’m really interested to be part of. To me this is an extension of the groworld project providing a connection to an additional, important group – the people who actually grow the food we eat.
The majority of the code was written in Scheme which meant a lot of it could be rapidly prototyped (I’ll be blogging more about this soon) and the source can be found on github here.