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Nitrate leaching from silage maize

Hansen, E.M. and Eriksen, J. (2009) Nitrate leaching from silage maize. ICROFSnews, November 2009, pp. 4-5.

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Online at: http://www.icrofs.org/pdf/icrofsnews/2009_4.pdf

Summary

During the last 20 years the area with maize in Denmark has increased dramatically and reached 163,000 ha in 2008. Silage maize is easy to grow, is a suitable fodder for cows and goes well with grass-clover in the diet. This means that silage maize is often found in crop rotations with grass-clover on sandy soils in western Denmark. The ploughing in of grass-clover fields poses a serious risk of increased nitrate leaching on a coarse sandy soil, even when carried out in spring. With increased maize cropping, there is therefore a need for strategies to reduce nitrate leaching after ploughing of grass-clover.In the ICROFS project, OrgGrass, we examined the effect of catch crop and slurry application on nitrate leaching from maize after a spring-ploughed grass-clover.


EPrint Type:Newspaper or magazine article
Keywords:maize, catch crops, cover crops, ryegrass, nitrate leaching
Subjects: Soil > Nutrient turnover
Environmental aspects > Air and water emissions
Research affiliation: Denmark > DARCOF III (2005-2010) > ORGGRASS - Grass-clover in organic dairy farming
Deposited By: Hansen, Grethe
ID Code:17876
Deposited On:11 Oct 2010 11:27
Last Modified:15 Oct 2010 08:05
Document Language:English
Status:Published

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