This experiment began in 1966 on a site that was originally a
stppe-forest ecosystem. The crops at the site previous to the
experiment were pea and wheat.
The land uses in the experiment are: Rotation 1 -
wheat,maize,maize,pea; Rotation 2 -
wheat,maize,maize,wheat. Treatments: NPK fertilizers (20-40
The soil at the site is described as a Hapludoll (USDA)
Apl 0-30 cm: dark brown ... somewhat dusty blocky loam with plant residues
and roots, calcareous, definite transition to the next layer. A1
30-55 cm: blackish-brown loam with small crumb structure and medium
rootlet density, strongly calcareous, gradual transition. B 55-100
cm: brown - light brown loam with small lime covered crumb structure,
high root density, strongly calcareous. BC 100-125 cm:
brownish-light yellow loam-like loess, slight lime precipitation, animal
holes, strongly calcareous. C 125-170 cm: light yellow loess with
infrequent lime spots.
Nearest meteorological station to the site: Siofok. which is 35 km
from the site. The meteorological station is manual.
Variables measured are listed in the parameters section of this record.
This information was compiled for the GCTE-SOMNET Database, Pete
Smith, Pete Falloon, David Powlson, and Jo Smith. Soil Science
Department, IACR-Rothamsted, UK.