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Efficient use of nitrogen from livestock manure

{Tool} Efficient use of nitrogen from livestock manure. Creator(s): Askegaard, Margrethe. Issuing Organisation(s): SEGES. OK-Net Arable Practice abstract, no. 037. (2017)

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Online at: https://orgprints.org/31052/

Summary

Optimized application of nitrogen from livestock manure will reduce nitrogen losses and result in higher yields.
Practical recommendation
Nitrogen application from livestock manure to winter and spring crops has different effects on crop yields depending on the pre-crop and the amount of ammonium-N provided.
The results above show that nitrogen availability from livestock manure is limited. Based on the results, the following recommendations can be made:
• If the pre-crop is not nitrogen-fixing, apply 20 to 60 kg of ammonium-N from livestock manure prior to sowing of crops.
• Livestock manure application to a spring crop after nitrogen-fixing clover-grass is not yield effective and may bear the risk of nitrogen losses.
• If livestock manure is difficult to access, choose cereals that are competitive against weeds. Spring oats and win-ter rye are the best options for spring- and winter crops, respectively.
• Where nitrogen is a limited resource, yield potential is higher in winter crops than in spring crops. If weeds are abundant and difficult to control in a poorly fertilized winter crop, spring crops might be the better option.
• Try not to compromise the nitrogen-supply of certain grass seeds, i.e. ryegrass, which need at least 100 to 110 kg of ammonium-N per ha for optimum growth.


EPrint Type:Practice tool
What problem does the tool address?:Nitrogen is often a yield limiting factor in organic arable crops. Therefore, it is important to apply available nitrogen sources, such as livestock manure, efficiently based on crop-specific needs.
What solution does the tool offer?:Optimum use of nitrogen from livestock manure requires knowledge on crop-specific nitrogen demand, yield optimisa-tions and response of crops to different amounts of ammoni-um-N.
Country:Denmark
Type of Practice Tool:Practice abstracts
Theme:Nutrient management
Keywords:arable farming, crop species, manure, nitrogen, nutrient management
Keywords:arable farming, crop species, crops, organic fertilizers, nitrogen, nutrient management
Agrovoc keywords:
LanguageValueURI
Englisharable farminghttp://aims.fao.org/aos/agrovoc/c_36528
Englishcropshttp://aims.fao.org/aos/agrovoc/c_1972
Englishorganic fertilizershttp://aims.fao.org/aos/agrovoc/c_4592
Englishnitrogenhttp://aims.fao.org/aos/agrovoc/c_5192
Englishnutrient managementhttp://aims.fao.org/aos/agrovoc/c_330697
Subjects: Crop husbandry > Composting and manuring
Farming Systems > Farm nutrient management
Research affiliation: Denmark > SEGES
European Union > Horizon 2020 > OK-Net Arable
Related Links:http://farmknowledge.org/index.php/search-for-ok-tools?v=31052
Project ID:oknet
Deposited By: Forschungsinstitut für biologischen Landbau, FiBL
ID Code:31052
Deposited On:18 Jan 2017 15:34
Last Modified:08 Jan 2019 19:21
Document Language:English
Status:Published

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