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Organic farmers to grow and harvest the manure of the future [View all]
http://dca.au.dk/en/current-news/news/show/artikel/oekologer-skal-selv-dyrke-og-hoeste-fremtidens-goedning/[font face=Serif][font size=5]Organic farmers to grow and harvest the manure of the future[/font]
[font size=4]In the long term the Danish organic agricultural organizations want to phase out the use of conventional animal manure in organic production. Recent research from Aarhus University shows that it may be profitable for organic farmers to replace animal manure by so-called mobile green manure and still achieve the same effect.[/font]
2016.08.19 | Nina Hermansen
Green manure has been used for several hundred years and is an excellent method of building up soil fertility and recirculating nutrients. Photo: Jørn Nygaard Sørensen
[font size=3]…
Green manure has been used for several hundred years and is an excellent method of building up soil fertility and recirculating nutrients. Traditionally, it entails that the farmer grows legumes such as e.g. red or white clover in his fields. Project manager and Senior Scientist at Department of Food Science, Aarhus University, Jørn Nygaard Sørensen explains:
- In the fall or spring the legumes are ploughed into the soil in order to function as fertilizer for a subsequent main crop. The news is that we have demonstrated that instead of ploughing the legumes into the soil, we should harvest them and use them in another field with e.g. cauliflower or leek, says Jørn Nygaard Sørensen, and he further compares the method to mowing the lawn and then subsequently apply the cut grass to the vegetable garden.
…
The major advantage of mobile green manure is that you can harvest repeatedly and achieve different manure crop qualities. The quality depends on the carbon/nitrogen ratio. If the crop contains too much carbon in relation to nitrogen the nutrients will be released too slowly and, on the other hand, high nitrogen contents will result in a quick release of nutrients.
…[/font][/font]
[font size=4]In the long term the Danish organic agricultural organizations want to phase out the use of conventional animal manure in organic production. Recent research from Aarhus University shows that it may be profitable for organic farmers to replace animal manure by so-called mobile green manure and still achieve the same effect.[/font]
2016.08.19 | Nina Hermansen
Green manure has been used for several hundred years and is an excellent method of building up soil fertility and recirculating nutrients. Photo: Jørn Nygaard Sørensen
[font size=3]…
Green manure has been used for several hundred years and is an excellent method of building up soil fertility and recirculating nutrients. Traditionally, it entails that the farmer grows legumes such as e.g. red or white clover in his fields. Project manager and Senior Scientist at Department of Food Science, Aarhus University, Jørn Nygaard Sørensen explains:
- In the fall or spring the legumes are ploughed into the soil in order to function as fertilizer for a subsequent main crop. The news is that we have demonstrated that instead of ploughing the legumes into the soil, we should harvest them and use them in another field with e.g. cauliflower or leek, says Jørn Nygaard Sørensen, and he further compares the method to mowing the lawn and then subsequently apply the cut grass to the vegetable garden.
…
The major advantage of mobile green manure is that you can harvest repeatedly and achieve different manure crop qualities. The quality depends on the carbon/nitrogen ratio. If the crop contains too much carbon in relation to nitrogen the nutrients will be released too slowly and, on the other hand, high nitrogen contents will result in a quick release of nutrients.
…[/font][/font]
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