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Fertilizer research

, Volume 15, Issue 2, pp 147–154 | Cite as

Fertigation versus broadcasting in an orange grove

  • S. Dasberg
  • A. Bar-Akiva
  • S. Spazisky
  • A. Cohen
Article

Abstract

A long-term experiment was carried out in a mature orange grove comparing broadcasting versus continuous application of nitrogen at three rates (80, 160, 280 kg ha−1), 22 kg P ha−1 and 126 kg K ha−1 annually. The trees were irrigated with minispriklers wetting 70% of the soil area.

The level of NO3-N in the leaves varied according to the rate of N application. Leaf K and P content were not affected by fertilization. High N applications caused excess N in the soil solution. The rate of N application did not affect orange yield, fruit size or quality. Fertigation at 160 kg N ha−1 caused higher yields than when the same amount of fertilizer was broadcast. At the high application rate, no differences between modes of application were found.

Key words

Citrus sinensis leaf analysis nitrogen uptake Phosphorus Potassium 

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References

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Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • S. Dasberg
    • 1
  • A. Bar-Akiva
    • 2
  • S. Spazisky
    • 2
  • A. Cohen
    • 2
  1. 1.Dept. of Soil PhysicsThe Volcani CenterBet DaganIsrael
  2. 2.Dept. of Citriculture, Agricultural Research OrganizationThe Volcani CenterBet DaganIsrael

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