Do local allotment holders in the Prudhoe area weigh up the produce from your allotment regularly? If so, this site may be of interest to you. MyHarvest – the idea is as follows and the site comes with help and instructions as to how to weigh:
MYHarvest (Measure Your Harvest) is your opportunity to participate in an exciting research project that will estimate the contribution people who grow their own fruit and vegetable crops are making to UK national food production.
At present, there is a recognition that own-growing in the UK makes a really important contribution to food security, healthy diets and general well-being, but we currently have a poor understanding of how much own-grown food people are able to produce.
This will be key to providing the vital evidence base to support the use of land for growing spaces within our cities and towns, at a time when people are becoming increasingly interested in growing their own fruit and vegetables.
If nothing else you will know if you plot is worth the money you spend on it.