This experiment was initiated in 1965 at a site that has been in
arable use for a very long time. The land use in this experiment
consists of a cropping sequence: Sugar beet, Spring oats, Winter
This experiment began in 1923. The land uses in the project are:
1923-66 "free" rotation, 50% cereals,50% non-cereals; since 1967 4
year rotation either fodder beet,winter wheat,potatoes,winter wheat ...
This experiment began in 1975 at a cool temperate site with brown
calcereous, slightly hydromorphic soil. Before the experiment began
the soil had been cultivated for at least 20 years according to ...