SWEDEN - Independent Swedish study finds switch from conventional farming to organic would require 130% additional land to maintain yields [Genetic Literacy Project, May 2022]

Title:

Independent Swedish study finds switch from conventional farming to organic would require 130% additional land to maintain yields

 

Author:

David Connor

 

Published:

Genetic Literacy Project, 16 May 2022

https://geneticliteracyproject.org/2022/05/16/independent-swedish-study-finds-switch-from-conventional-farming-to-organic-would-require-130-additional-land-to-maintain-yields/

 

Context of study:

Most information on relative yield of organic (OA) and conventional agriculture (CA) is from plot experiments of individual crops grown with organic or inorganic fertilizers, respectively. Commonly reported values are 0.75–0.91, a relatively small difference. But organic manures are produced through biological nitrogen fixation(BNF) by legumes. How much and what else does that land in legumes contribute to overall yield?

Objective of study:

Establishment of OA/CA yield ratios for crop-dairy production at regional scale accounting for proportions of land in crop and fodder production and their contributions to overall food yield using human metabolizable energy (HME) as a unifying parameter of yield of grain and milk.