Add England’s Rothamsted Experimental Station to the list of long-term experiments.
“Rothamsted’s Classical experiments are unique in their age and variety, and are, deservedly, world-famous. There are many other experiments on our Rothamsted and Woburn farms that, by conventional standards, can justifiably be described as ‘long-term’. Most of these were originally established to study long-term changes in soil fertility and soil properties. However, these experiments and a number of others are also valuable for addressing many other issues including tests on the incidence of pests, diseases and weeds; soil pollution; ecology of farmland; carbon sequestration; factors influencing the sustainability of arable agriculture.”
The image above is of the Broadbalk experiment, which had its first winter-wheat crop sown in autumn 1843, and has been sown and harvested every year since (image reference).
