IA-Marsden
Basic
Location:
Institution:
Experiment Design:
Replicates:
Start Year:
End Year:
Climate
Soil Order/Type:
MAT:
MAP:
Elevation:
Koppen-classication:
Treatments
336.0 m
Crop Rotations:
Tillage:
Fertility:
Other:
Data
Iowa State University
Ongoing
Mollisol
10.0°C
Dfa
maize-soybean(2)
maize-soybean-oat/red clover(3)
maize-soybean-oat/alfalfa-alfalfa(4)
The two-year maize-soybean system receives mineral N at recommended levels. The 3- and 4-year systems receive organic fertilizer with limited synthetic N.
Weed management split-plots (conventional versus low dosages of herbicides) were introduced in 2008 and maintained until 2022.
Description of available data:
Contact information:
Website
Iowa State University Agricultural Engineering and Agronomy Farm, Boone, IA - 42.01°, -93.78° (lat, lon)
Randomized Complete Block Design (RCBD)
Three rotations under different management systems, with each phase of each rotation system present every year in each block of replicates.
4
2001
871.0 mm
For the first 20 years of the experiment, the two-year maize-soy system had reduced tillage and the 3- and 4-year systems had conventional tillage. Beginning in fall 2021, the entire experiment was shifted to strip-till and no-till practices.
N/A
N/A
Marshall McDaniel (PI), [email protected],
Matt Liebman, [email protected]
Notes:
https://farms.cals.iastate.edu/project/agricultural-engineeringagronomy-and-central-iowa-research-farms