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Kvävebalans i korn och höstvete

Mattsson, Lennart (2003). Kvävebalans i korn och höstvete. 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 ; 206
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Abstract

The investigation showed that the N-balance, applied minus removed, for N-rates of normal size was lower in winter wheat following ley for grass production or fallow than wheat following cereals or oil seed. In barley the N-balance was the lowest after sugar beets and the highest after spring cereals. It was also shown that the N-balance was lower on soils with clay contents of 15-25% than on soils with more or with less clay. Regional comparisons of the N-balance showed increasing values from south to north. Calculations of the N-balance at economic optimum N-rates showed N excess values from 10 to 27 kg ha-1 depending on region, clay content or preceding crop. For barley similar calculations gave values between 1 and 14 kg ha-1.

Authors/Creators:Mattsson, Lennart
Title:Kvävebalans i korn och höstvete
Series/Journal:Rapport / Sveriges lantbruksuniversitet, Institutionen för markvetenskap, Avd. för växtnäringslära (0348-3541)
Year of publishing :2003
Number:206
Number of Pages:28
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:Kväveoptimum, Regional balans, Lerhalt
URN:NBN:urn:nbn:se:slu:epsilon-1-14
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-1-14
ID Code:3164
Department:(NL, NJ) > Dept. of Soil Sciences > Div. of Soil Fertility and Plant Nutrition
Deposited By: Lennart Mattsson
Deposited On:08 Feb 2008 00:00
Metadata Last Modified:02 Dec 2014 10:19

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