Farm emission plan announced, expect to pay more for your food...

[harm_less]

Your link relates to American cropping systems
These say otherwise and are more relevant to NZ pastoral systems
https ://www.tandfonline.com/doi/pdf/10.1080/00288233.1988.10423439 Dead link
https://newzealandecology.org/nzje/1886.pdf Nitrogen input noted is by way of fixation by legumes which is totally different than application of high analysis soluble N fertiliser.

N fertiliser IS frequently made from crude oil products, but it does not have to be  behttps://www.outpostcentral.com/remote/(S(4hde4so4cwepcxlrjrstfe2z))/WaterforceDefault.aspx?uguid=e156854f-4cc0-e811-80c5-bc764e18087e URL is for login page of a subscription website.

The Haber Bosch process sources nitrogen from the air and currently uses hydrogen sourced from natural gas.
The hydrogen can be sourced other wise (note proposals to use Tiwai point to make "green" hydrogen)Hydrogen production is a whole different discussion. 'Excess' electricity when Tiwai closes is far more efficiently utilised to charge EVs and address national domestic pricing. Hydrogen used in fertiliser production is far more likely to be sourced from the blue hydrogen production system proposed at Ballance's Kapuni (ammonia urea) plant.

Your link to stats is 3 years out of date.
Dairy cows numbers have declined and recent forestry conversions have yet to be factored in.
https://www.thecattlesite.com/news/59168...ected-gain. Your link relates to a US based article summarising beef production rates in NZ with minimal mention of dairy cattle. The Stat's NZ website is slow to update but the strong trends shown over the past decade (i.e. doubling of dairy numbers since 1980s won't have reversed in the past 3 years. Also the mention of reducing herd numbers is a "projection" which is a less than reliable approach in light of the volatility of world markets in the current economic and social climate.

Plenty of spurious info in your post. My notes in red above.