30-10-2022, 09:01 PM
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
https://newzealandecology.org/nzje/1886.pdf
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
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)
Your link to stats is 3 years out of date.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.
These say otherwise and are more relevant to NZ pastoral systems
https ://www.tandfonline.com/doi/pdf/10.1080/00288233.1988.10423439
https://newzealandecology.org/nzje/1886.pdf
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
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)
Your link to stats is 3 years out of date.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.