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 (t/ha) Wanganui Establishment Method Year 1Year 2Year 3Mean Plough Top Work Direct Aerate + Direct 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. z

ADDING VALUE TO THE BUSINESS OF ARABLE FARMING Optimising ryegrass seed yields with less N input Total plant N [straw+seed+roots] (kg N/ha) Seed yield (kg/ha) Luxury uptake maximum seed yield minimum plant N for max yield