Cropping systems under no tillage in soils degraded by intensive agricultural use (Pergamino, Argentina)
- Objective
- Develop criteria for the design of cropping systems under no-tillage that contribute to increase crop productivity and soil and water conservation
- Data Access Statement
- Available to collaborators only
- Data license
- Don't know
- Data policy
- Don't know
- Organization
- Instituto Nacional de Tecnología AgropecuariaResearch organisation
- Person
- Ing. Agr., MAgrSc Manuel Ferrariprincipal investigatorINTA-ArgentinaEstación Experimental Agropecuaria Pergamino
Site: INTA Pergamino (Argentina)
- Type
- research station field
- Location
- PergaminoBuenos AiresArgentina
- Geographic location
- -33.95591, -60.562457
- Elevation
- 64 Metres
- Visits permitted?
- Yes
- Visiting arrangements
- Contact: Ing. Agr. Manuel Ferrari (ferrari.manuel@inta.gob.ar)
- History
- Long period of cropping with intensive tillage (mouldboard plough, disk harrow, tine harrow, roller)
- Management
- Continuous no tillage
- Soil type
- unknown
- Soil description
- Typic Argiudoll
- Climatic type
- humid subtropical climate
Design period: Split-plot (1997—)
- Description
- The experiment consists of rather large experimental units (14 m x 35 m) and all labours are performed by using commercial-size machinery. At both sides of the trial, permanent pastures (tall fescue and white clover) established in 1998 serve as reference sites for studying the evolution of soil properties with time.
- Design description
- Main plots: deep tillage (paraplough or cultivie) frequency treatments Subplots: crop rotation treatments
- Number of plots
- 9
- Number of subplots
- 27
- Number of replicates
- 3
- Number of harvests per year
- 2
- Crops
Crop Years grown wheat maize soybeans sorghum oats feed legumes - Crop Rotations
- a 1998—
- 1wheat
- 2sorghum
- 3maize
b 1998—- 1oats
- 2feed legumes
- 3soybeans
c 1998—- 1wheat
- 2soybeans
- 3maize
- Factors
- Factor name
- Factor levels
- crop rotation Three crop rotations are compared: "a" (wheat/double cropped grain sorghum-maize), "b" (oats+hairy vetch as cover crop/full season soybean), and "c" (wheat/double cropped soybean-maize)
crop rotation A
wheat/double cropped grain sorghum-maizecrop rotation B
oats+hairy vetch as cover crop/full season soybeancrop rotation C
oats+hairy vetch as cover crop/full season soybean), and "c" (wheat/double cropped soybean-maize)- tillage process Deep tillage frequency: "A" (at the beginning of the experiment only), "B" (at the beginning of the experiment and then periodically), "C" (no deep tillage)
deep tillage A
at the beginning of the experiment onlydeep tillage B
at the beginning of the experiment and then periodicallydeep tillage C
no deep tillage
- Measurements
Variable Material Units Frequency Scale Comment Grain yield trait All crops kg/ha annually Above ground biomass accumulation, instead of grain yield, is measured for the cover crop of oats+hairy vetch. Soil organic matter Soil t/ha every ten years approx. Bulk density Soil g/cm3 every ten years approx. Total soil nitrogen Soil gram per kilogram every ten years approx. pH Soil every ten years approx. Extractable phosphorous Soil mg/kg every ten years approx. Bray and Kurtz 1-P Aggregate stability Soil percentage every ten years approx. Hydraulic conductivity Soil mm per hour every ten years approx. Pore size distribution Soil percentage every ten years approx. Soil biological properties Soil every ten years approx.