D5

Local identifier
El Batán
Years operational
1991—
Objective
The experiment evaluates the effect of tillage, rotation and residue management on maize, wheat and dry bean performance and related soil, crop and profitability parameters in rain-fed conditions in the semi-arid highlands of Mexico
Farm operation data?
Sample archive?
Samples available?
 
Data Access Statement
Available to any researcher on request
Data Access Notes
We mostly receive requests for data that have been published through the email of the corresponding author (Bram Govaerts). In general we provide the published data to anyone who requests access. For unpublished data we do ask for more detailed information on what they intend to use the data for
Data license
No data license
Data policy
Yes (not online)
Organization
International Maize and Wheat Improvement Center
research organisation
Person
Dr Nele Verhulst
principal investigator
senior scientist and cropping systems agronomist
sustainable intensification

Site: D5 Trial Site

Type
research station field
Local code
El Batán
Location
Experimental station El Batán
El Batán
Mexico
Geographic location
19.529142, -98.846754
© OpenStreetMap contributors
Elevation
2240 Metres
Visits permitted?
No
Management
records of field operations are mainly available from 2003 for older operations records information it is unclear, it must be checked in written records
Soil type
phaeozem
Soil description
Haplic Phaeozem (Clayic)
Climatic type
humid subtropical / subtropical oceanic highland climate
Climate properties
VariableTime periodValue (range)Units
air temperature 1991 – 2016 15.4 (6.5 – 24.4) degree Celsius
precipitation 1991 – 2016 625 (451 – 1069) millimeter

Design period: (1991—)

Design Type
Randomized complete block design
Description
Plots measure 7.5 (width) x 22 (length) m
Design description
The 32 treatments have one crop per year (summer). The first 16 treatments have a factorial design and were never changed since the start of the experiment: -tillage practice: zero and conventional tillage -rotation: maize monoculture, wheat monoculture, maize-wheat rotation -residue management: retention and removal of residue The other 16 treatments are more flexible and include other alternatives, working towards conservation agriculture: - tillage practice: permanent beds of 75 cm and 150 cm -rotation: triticale-maize, wheat-bean-maize, wheat-bean -residue management: partial retention (different levels)
Number of plots
64
Number of replicates
2
Number of harvests per year
1
Crops
CropYears grown
maize
wheat
triticales
beans
Crop Rotations
Maize monoculture
  • 1
    maize
wheat monoculture
  • 1
    wheat
Maize wheat rotation
  • 1
    maize
  • 2
    wheat
triticale-maize
  • 1
    triticales
  • 2
    maize
wheat-bean-maize
  • 1
    wheat
  • 2
    beans
  • 3
    maize
wheat-bean
  • 1
    wheat
  • 2
    beans
Factors
tillage process
no-till
conventional tillage
crop residue management process
crop residue removal
crop residue retention
Crop residues are left at various amounts
row spacing
Plot application: Whole plot
 (75 cm)
 (150 cm)
Measurements
VariableMaterialUnitsFrequencyScaleComment
grain yield traitAll cropsannual
plant quality traitsAll cropsannual
soil pHSoilsampled sometimes
soil salinitySoilsampled sometimes
soil total carbonSoilsampled sometimes
composition of soilSoilsampled sometimes
soil water contentSoilsampled sometimes
weed species richnessNot specifiedsampled sometimes