The soils of this region are classified as Mollisols
humid temperate climate
Design period: (1976—2015)
Randomized complete block design
The experiment had a randomized complete block design with a split-plot treatment arrangement. Plots measured 10 x 35 m.
Since 1994 the experiment alternates 3 year pastures with 4 different periods of cropping of a maize-soybean-wheat rotation. Cropping periods are none (pasture); 3 year; 9 year; continuous (no cropping) . Between 1976 and 1993 the experiment had 7 different rotations growing various crop sequences and with varied lengths of pasture in between.
crop sequence 1994—2014
Sub-plots. Between 1976 and 1993, two levels and four levels since 1994.
60 (60 kgN/ha)
120 (120 kgN/ha)
180 (180 kgN/ha)
90 (90 kgN/ha)
Application method: mouldboard plough
moldboard plow, disk grade, field cultivator or vibro-cultivator
Santiago N. Tourn, Cecilia C. Videla, Guillermo A. Studdert, 2019. Ecological agriculture intensification through crop-pasture rotations does improve aggregation of Southeastern-Pampas Mollisols. Soil and Tillage Research. Volume 195. 104411
Studdert, G.A., Echeverría, H.E. and Casanovas, E.M. (1997), Crop-Pasture Rotation for Sustaining the Quality and Productivity of a Typic Argiudoll. Soil Science Society of America Journal, 61: 1466-1472.