ets and the arable industry
DESCRIPTION
ETS and the Arable industry. Stuart Wright. New Zealand’s Greenhouse Gas Inventory 1990–2010. Agriculture (chapter 6) 2010 - PowerPoint PPT PresentationTRANSCRIPT
ETS and the Arable industry
Stuart Wright
New Zealand’s Greenhouse Gas Inventory 1990–2010
• Agriculture (chapter 6) • 2010 • The agriculture sector was the largest source of emissions in
2010, contributing 33,748.4 Gg CO2-e (47.1 per cent) of total emissions. New Zealand has a unique emissions profile amongst developed countries. In most other developed countries, agricultural emissions are typically less than 10 per cent of total emissions.
• The largest sources of emissions from the agriculture sector in 2010 were enteric fermentation from dairy cattle and sheep, and nitrous oxide emissions from agricultural soils.
ADDING VALUE TO THE BUSINESS OF ARABLE FARMING
Yield trends in wheat UK and New Zealand
ADDING VALUE TO THE BUSINESS OF ARABLE FARMING
Cultivation practice following grass
Can we lower our crop establishment emissions without reducing our crop yields and margins?
ADDING VALUE TO THE BUSINESS OF ARABLE FARMING
Spring barley yields Year 1 - 3 (t/ha) Wanganui 2009 - 2011
Establishment Method
Year 1 Year 2 Year 3 Mean
Plough 6.8 8.3 6.7 7.3
Top Work 7.2 7.9 6.9 7.3
Direct 7.1 7.9 7.0 7.3
Aerate + Direct 7.0 8.2 6.8 7.3
Yields based on plots receiving same of nitrogen as paddock approx 90 kg N/ha for the spring barley
ADDING VALUE TO THE BUSINESS OF ARABLE FARMING
The Sirius Wheat Calculator software
2012 Wheat Calculator will be available from Rob Craigie at FAR from late July.Email: [email protected]
ADDING VALUE TO THE BUSINESS OF ARABLE FARMING
Optimising ryegrass seed yields with less N input
0
500
1000
1500
2000
0 50 100 150 200 250 300 350 400
Total plant N [straw+seed+roots] (kg N/ha)
Seed
yie
ld (k
g/ha
)
Luxury uptake
maximumseed yield
minimum plant N for max yield