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Cultivation in rows – Nitrogen fixation by catch crops and their effect on yield

{Tool} Cultivation in rows – Nitrogen fixation by catch crops and their effect on yield. [Rækkedyrkning – Efterafgrødens kvælstoffiksering og effekt på udbytte.] Creator(s): Petersen, Maja Eline and Bertelsen, Inger. Issuing Organisation(s): SEGES, AU - Aarhus University, KU - University of Copenhagen, AgroIntelli, Økologisk VKST, Barritskov Land- og Skovbrug. ROWCROP – Højere udbytter med rækkedyrkning og efterafgrøder. (2018)

[thumbnail of Nitrogen fixation and yield effect of catch crops] PDF - Published Version - Danish/Dansk (Nitrogen fixation and yield effect of catch crops)
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Document available online at: https://www.landbrugsinfo.dk/Oekologi/Planteavl/Sider/oe_18_3811_faktaark-om-raekkedyrkningssystem.aspx


Summary in the original language of the document

Row cultivation in cereals with nitrogen-fixing crops can improve nitrogen supply in the crop rotation, while reducing nitrogen leaching. Well-established and competitive catch crops are important, they can both supply a significant amount of nitrogen to the subsequent crops and compete against the weeds.
There needs to be a balance between main and catch crops – competitive main crops require early establishment of the catch crop and/or larger row distance. In a less competitive main crop, row distance can be narrower and the catch crops should be sown later. Early harvest is important to get a competitive catch crop.
Well established catch crops can increase the yield of the succeeding crop, corresponding to up to 50 kg nitrogen per hectare.
Well established catch crops – including nitrogen fixing species – reduce nitrogen leaching by up to 20 kg N per hectare.


Summary translation

Rækkedyrkning i korn med kvælstoffikserende efterafgrøder kan forbedre kvælstofforsyningen i sædskiftet, samtidig med at kvælstofudvaskningen reduceres. Det er vigtigt med veletablerede og kraftige efterafgrøder, som både kan levere en betydelig mængde kvælstof til de efterfølgende afgrøder og konkurrere mod ukrudtet.
Der skal være en balance mellem hoved- og efterafgrøder - konkurrencedygtige hovedafgrøder kræver tidlig etablering af efterafgrøderne og / eller større rækkeafstand. I en mindre konkurrencedygtig hovedafgrøde kan rækkeafstanden være smallere, og efterafgrøderne skal sås senere. Tidlig høst er vigtig for at få en konkurrencedygtig efterafgrøde.
Veletablerede efterafgrøder kan øge udbyttet af den efterfølgende afgrøde svarende til op til 50 kg kvælstof/ha.
Veletablerede efterafgrøder - inklusive kvælstoffikserende - reducerer kvælstofudvaskning med op til 20 kg N/ha.

EPrint Type:Practice tool
Teaser:Reduce N-leaching and improve yield with catch crops
What problem does the tool address?:High yields in cereals depend on sufficient nutrient supply
What solution does the tool offer?:Increased row spacing in the main crop and early sowing can improve the growth of the catch crop, provide better nitrogen impact and stabilize yields over time.
Country:Denmark
Type of Practice Tool:Leaflets & guidelines
Theme:Soil quality and fertility, Crop specific
Keywords:arable farming, crop rotation, catch crops, cereal crops, cover plants, cropping systems, crop management, green manures, nitrogen fixation
Agrovoc keywords:
Language
Value
URI
English
arable farming
http://aims.fao.org/aos/agrovoc/c_36528
English
crop rotation
http://aims.fao.org/aos/agrovoc/c_6662
English
catch crops
http://aims.fao.org/aos/agrovoc/c_29684
English
cereal crops
http://aims.fao.org/aos/agrovoc/c_25512
English
cover plants
http://aims.fao.org/aos/agrovoc/c_1936
English
cropping systems
http://aims.fao.org/aos/agrovoc/c_1971
English
crop management
http://aims.fao.org/aos/agrovoc/c_16094
English
green manures
http://aims.fao.org/aos/agrovoc/c_3375
English
nitrogen fixation
http://aims.fao.org/aos/agrovoc/c_5196
Subjects: Crop husbandry > Crop combinations and interactions
Crop husbandry > Production systems > Cereals, pulses and oilseeds
Soil
Research affiliation: European Union > Horizon 2020 > OK-Net Arable > Selected tools
Denmark > Organic RDD 2 > RowCrop
European Union > Organic Farm Knowledge
Related Links:http://icrofs.dk/en/research/danish-research/organic-rdd-2/rowcrop/, https://organic-farmknowledge.org/tool/36825
Project ID:ofk
Deposited By: Rasmussen, Ilse Ankjær
ID Code:36825
Deposited On:19 Nov 2019 14:39
Last Modified:02 May 2024 10:32
Document Language:Danish/Dansk
Status:Published

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