This experiment began in 1957 at a site that was cultivated for
several centuries before the start of the experiment. It has had no
manure (and no cattle) since 1912. The geology at the site is glacial ...
The exact origin of the Morrow plots on the campus of the University
of Illinois is obscure, but they are reputed to be the oldest
continuous agronomic research study in the USA. Some evidence
This experimnet began in 1888 at a cool temperate site. The site was used as
pasture up until 1886, corn was grown 1887 and 1888. the soil is described as
Mexico series (fine montmorillonitic, mesic ...
This experiment began in 1938 at a cool temperate site in
England. There are 3 soil series present on the experiment. Cottenham,
brown sand on Lower Greensand. Lowlands, colluvial brown earth in
This experiment began in 1942 at a cool temperate site. The Land use
and treatments in the project are as follows:
Land use: 4 categories: 1. 1942-1961; 2. 1942-1967; 3. 1967-1972; 4.