Study

Tillage and seasonal emissions of CO2, N2O and NO across a seed bed and at the field scale in a Mediterranean climate

  • Published source details Lee J., Hopmans J.W., van K.C., King A.P., Evatt K.J., Louie D., Rolston D.E. & Six J. (2009) Tillage and seasonal emissions of CO2, N2O and NO across a seed bed and at the field scale in a Mediterranean climate. Agriculture, Ecosystems & Environment, 129, 378-390.

Actions

This study is summarised as evidence for the following.

Action Category

Soil: Use reduced tillage in arable fields

Action Link
Mediterranean Farmland
  1. Soil: Use reduced tillage in arable fields

    A controlled study in 2003–2006 in an irrigated wheat-sunflower-chickpea field in Yolo County, California, USA, found similar amounts of greenhouse gas in soils with reduced tillage, compared to conventional tillage. Greenhouse gases: Similar amounts of greenhouse gas (carbon dioxide and nitrous oxide) were found in soils with reduced tillage, compared to conventional tillage (3–14 vs 3–15 Mg C/ha/year; 2–9 vs 1–4 kg N/ha/year). Methods: Conventional tillage was used on one half of a field, and reduced tillage was used on the other half, in 2003–2006. Different crops were planted in different years (2003: fallow; April 2004: maize; May 2005: sunflower; November 2005: chickpea). Ripping (45 cm depth), disking (15 cm depth), grading, listing beds were used for conventional tillage. Herbicide, stubble chopping, mulching, and disking were used for both conventional tillage and reduced tillage. Both treatments were fertilized and irrigated. Greenhouse gases were measured with closed chambers, in several places (crop row, crop bed, bottom of the furrow, and side of the furrow), 1–2 times/month, in 2003–2006 (nine samples/treatment).

     

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 18

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust