The soils of this region are classified as Mollisols
Climatic type
humid temperate climate
Design period: (1976—2015)
Design Type
Randomized complete block design
Design description
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.
Crops
Crop
Years grown
wheat
maize
soybeans
sunflower
Vicia spp
mixed pastures
oats
potatoes
Crop Rotations
Pasture
1
mixed pastures
crop sequence 1994—2014
1
maize
2
soybeans
3
wheat
Factors
Factor name
Factor levels
fertilizer exposure
Sub-plots. Between 1976 and 1993, two levels and four levels since 1994.
0
1976—2014
60 (60 kgN/ha)
1994—2014
120 (120 kgN/ha)
1994—2014
180 (180 kgN/ha)
1994—2014
90 (90 kgN/ha)
1976—1993
tillage process
no-till
1994—2014
conventional tillage
1994—2014
Application method: mouldboard plough
moldboard plow, disk grade, field cultivator or vibro-cultivator
Related publications
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.