home    about    browse    search    latest    help 
Login | Create Account

Weed dynamics in the Danish long-term experiments on organic arable crop rotation systems

Melander, Bo (2022) Weed dynamics in the Danish long-term experiments on organic arable crop rotation systems. Speech at: Studies of agroecology in long-term organic and conventional cropping systems, Aarhus University, Research Center Foulum,Tjele, Denmark, 7-8 June 2022. [Completed]

[thumbnail of Bo_melander_Weed_dynamics_long_expt.pdf] PDF - English


Summary of main findings on perennial weeds:
1. Gradual increase of perennial weeds over time, predominantly in the O4 rotation (without green manure)
2. Perennial green manures suppressed Creeping thistle and Sowthistle but caused Couch to increase
3. Cover crops hindered effective cultivation campaigns against perennials, especially Couch
4. Legume crops and mixtures with cereals and legumes caused perennials to proliferate, particularly Couch
5. Fertilisation had inconsistent effects
6. Summer fallow was effective st perennials, especially against Couch in particular
Summary of main findings on annual weeds:
1. No major problems encountered at all three sites
2. Skillfull operations of weed harrows, inter hoes and other mechanical tools improved over time
3. Hemp, spring oat and winter rye were particularly suppressive
4. Green manuring with grass clover or lucerne reduced the pressure of annual weeds in the first years after termination of the green manure

EPrint Type:Conference paper, poster, etc.
Type of presentation:Speech
Agrovoc keywords:
weed control
long-term experiments
organic agriculture
arable farming
crop rotation
Subjects: Crop husbandry > Crop combinations and interactions
Knowledge management > Research methodology and philosophy > Systems research and participatory research
Crop husbandry > Weed management
Research affiliation: Denmark > Organic RDD 4 > ClimOptic
Denmark > DARCOF III (2005-2010) > CROPSYS - The effect of cropping systems on production and the environment
Denmark > Organic RDD 5 > CCRotate
Denmark > Organic RDD 1 > HighCrop
Denmark > DARCOF I (1996-2001) > III Development of organic plant production systems
Denmark > DARCOF II (2000-2005) > IV.1 (EXUNIT) Experimental units for research in organic farming systems
Denmark > AU - Aarhus University > Faculty of Science and Technology > Department of Agroecology
Denmark > CROPSYS
International Conferences > 2022: Studies of agroecology in long-term organic and conventional cropping systems
Denmark > Organic RDD 2 > RowCrop
Deposited By: Christensen, Jytte
ID Code:44236
Deposited On:29 Jun 2022 14:56
Last Modified:29 Jun 2022 14:56
Document Language:English
Refereed:Not peer-reviewed
Additional Publishing Information:An international scientific workshop to celebrate the 25 years anniversary of the long-term experiment on organic arable crop rotations

Repository Staff Only: item control page


Downloads per month over past year

View more statistics