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Sammanfattning

The production of iceberg lettuce (Lactuca sativa) has been shown to be a potential source of nitrogen (N) leaching to ground water. Growers are concerned that reduced levels of N will lead to reduced yield and lowered quality. Experiments with a wide range of N levels the previous season showed that placed N fertilizer at planting had potential to reduce total N levels needed. This project was designed to verify these findings with use of commercially used, and lower, levels on N. The N content in the lettuce dry material at harvest and the N content in the soil profile (N-min) at several stages during the season were studied. By using placed starter N fertilizer, the total amount of N applied could be reduced by more than 25% without loss in yield or lowered quality. By using this strategy the risk of N leaching from the field could be significantly reduced at planting, during growth and after harvest.

Nyckelord

broadcast; placed; leaching

Publicerad i

Acta Horticulturae
2012, volym: 936, sidor: 299-304
Utgivare: International Society for Horticultural Science

Konferens

28th International Horticultural Congress on Science and Horticulture for People (IHC) / International Symposium on Quality-Chain Management of Fresh Vegetables - From Fork to Farm

SLU författare

  • Asp, Håkan

    • Hortikultur, Sveriges lantbruksuniversitet

  • Ekengard, Klara

    • Hortikultur, Sveriges lantbruksuniversitet

UKÄ forskningsämne

Jordbruksvetenskap
Trädgårdsvetenskap/hortikultur
Livsmedelsvetenskap

Publikationens identifierare

  • DOI: https://doi.org/10.17660/ActaHortic.2012.936.38
  • ISBN: 978-90-66054-94-3

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/42369