In a recent study in Alberta, the effect of including
spring thaw emissions was included.
When
spring thaw emissions were combined with growing season emissions, the conventional tillage system actually had higher total nitrous oxide emissions than the zero till system.We suggest that this type of experiment (full year emission measurements) be repeated with deep banding of N fertilizer, which would be expected to further reduce emissions from zero till systems.
In the paper, he reported that they (University of Alberta and Alberta Agriculture, Food and Rural Development) had compared the two tillage systems (zero till and conventional till) and had included
spring thaw emissions as well as growing season emissions.
Not exact matches
N2O
emissions were higher from conventional till than zero till at
spring thaw time.
Their study was recently published in the journal Geophysical Research Letters in a paper titled, «Large CO2 and CH4
Emissions from Polygonal Tundra During
Spring Thaw in Northern Alaska.»
Large methane
emissions from a subarctic lake during
spring thaw: Mechanisms and landscape significance
Spring thaw, and the amount and frequency of growing season precipitation will influence N2O
emissions.
Shifting to
spring application may also help in reducing N2O
emissions by avoiding the
spring thaw and allow for a more accurate assessment of expected crop nutrient requirements.
The use of nitrogen inhibitors when fall banding may be an option to reduce N2O
emissions during
spring thaw.