This experiment began in 1968 on a natural grassland area of Poland.
The site was arable crops to 1945 and later returned to grassland.
The land use of this area is permanent meadow now. Treatments ...
This experiment began in 1958 at a site that has been in arable crops
for more than 100 years. The climate of the site is cool temperate,
with mean annual temperature of 9.1 deg. C, and Mean annual ...
This experiment began in 1967 at a site that was originally
shrubland. The project consists of one rotation: Pearl
millet-wheat. Treatments = 1) Absolute control, 2) Farm yard manure
added, 3) N-fertilizer ...
The Billa Billa Folow Management Experiment was initiated in 1983. The soil
parent material at the site consists of cretaceous sediments (lithic
sandstone). The native vegetation was cleared in 1971. ...
The Deherain long-term field experiment was started in 1875 to study the
impact of fertilization on crop yield. Before 1875, the soil was
cultivated with alfalfa without fertilization. Between 1929 ...
This experiment began in 1852 at Rothamsted, England. The site was
occupied (farmed?) since Roman times. Map of 1623 shows field in
arable. Arable crops 1847-1851. Clay-with-flints overlying chalk; ...
This experiment began in 1966 on a site that was originally steppe.
Later, the crops at the site were maize,wheat,wheat (pea),maize.
The land uses in this experiment are: Rotation 1 -
This experiment began in 1966 on a site that was originally
forested. Later, the crops grown on the site were pea and wheat.
The treatments and rotations in the experiment are: Rotation 1 -
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 ...
This long term experiment began in 1972. The experimental site is a
tropical area, with a minimum annual temperature of 5.9 deg C, maximum
annual temperature of 42.8 deg C, and mean annual rainfall ...