eprintid: 15850
rev_number: 2
eprint_status: archive
userid: 185
dir: disk0/00/01/58/50
datestamp: 2009-06-26
lastmod: 2010-04-12 07:39:23
status_changed: 2009-08-20 14:43:24
type: journalp
metadata_visibility: show
item_issues_count: 0
doclang: en
projects: djf
refereed: yes
budget: 0
publicfulltext: TRUE
creators_name: Halberg, N.
creators_name: Kristensen, I. Sillebak
title: Expected Crop Yield Loss When Converting to Organic Dairy Farming in Denmark
ispublished: pub
subjects: 4plant
keywords: Crop yield loss, organic dairy farming, 
abstract: Knowledge of differences between organic and conventional crop yields is of interest for farmers, advisors, politicians and research scientists. Based on collected data from Danish organic and conventional mixed dairy farms the yield difference was estimated to be 21-37% in grain crops and 12-18% in fodder beets and grass/clover depending on climatic conditions and soil type. A method is presented to correct for the influence of year and geographic differences using crop and farm-specific simulated potential yields as regression variables in a linear statistical model. An interaction between potential yield and farming system indicates that other growth factors, possibly nutrients, are limiting the yields on organic farms more than on conventional farms. The results might facilitate modelling and evaluation of economics and energetic of organic farming at the crop and farm level.
date: 1997
date_type: published
publication: Biological Agriculture and Horticulture
volume: 14
publisher: A B Academic Publishers
editors_name: Harris, P.J.C.
editors_name: Hodges, R.D.
full_text_status: public
pagerange: 25-41
fp7_project: no
access_rights: info:eu-repo/semantics/openAccess
citation:    Halberg, N. and Kristensen, I. Sillebak   (1997) Expected Crop Yield Loss When Converting to Organic Dairy Farming in Denmark.   Biological Agriculture and Horticulture, 14, pp. 25-41.        
document_url: /id/eprint/15850/1/15850.pdf