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Halmnedbrukning

effekt på skörd och mark

Persson, Jan and Mattsson, Lennart and Carlgren, Käll (2006). Halmnedbrukning. Technical Report. Uppsala: (NL, NJ) > Dept. of Soil Sciences > Div. of Soil Fertility and Plant Nutrition, Sveriges lantbruksuniversitet. Rapport / Sveriges lantbruksuniversitet, Institutionen för markvetenskap, Avd. för växtnäringslära ; 213
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Official URL: http://www-mv.slu.se/vaxtnaring/forsok/Jan%20P/rap...

Abstract

A long-term pot experiment demonstrating interaction between straw and mineral nitrogen was performed. Mineral nitrogen and straw was supplied every second year while no additions were made every second year. In total the experiment was continued for 26 years. The straw caused heavy immobilisation, more intense the higher the straw addition. There was a definite interaction between straw and mineral nitrogen. Remineralization of the immobilised nitrogen started immediately, but a single straw addition caused only a small remineralization. However, not even after 26 years, the total remineralization did not completely compensate for the total immobilization if the straw addition was large. After 26 years 59 % of added nitrogen (straw-N and mineral N) was utilized by the crop with the largest straw addition. The lowest straw addition resulted in 82 % utilization. The straw additions increased soil organic nitrogen.

Authors/Creators:Persson, Jan and Mattsson, Lennart and Carlgren, Käll
Title:Halmnedbrukning
Subtitle:effekt på skörd och mark
Series/Journal:Rapport / Sveriges lantbruksuniversitet, Institutionen för markvetenskap, Avd. för växtnäringslära (0348-3541)
Year of publishing :2006
Number:213
Number of Pages:24
Place of Publication:Uppsala
Publisher:Institutionen för markvetenskap, Sveriges lantbruksuniversitet
ISSN:0348-3541
Language:Swedish
Publication Type:Report
Refereed:No
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Soil science
Keywords:Kväve, N-mobilisering, N-remineralisering, Kärlförsök
URN:NBN:urn:nbn:se:slu:epsilon-1-5
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-1-5
ID Code:3113
Department:(NL, NJ) > Dept. of Soil Sciences > Div. of Soil Fertility and Plant Nutrition
Deposited By: Lennart Mattsson
Deposited On:12 Dec 2007 00:00
Metadata Last Modified:02 Dec 2014 10:19

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