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Effect of animal manure on phosphorus and potassium content of herbage

Part of the Developments in Plant and Soil Sciences book series (DPSS, volume 30)

Abstract

To diagnose phosphorus (P) and potassium (K) nutrition, the relations between the contents of nutrients in herbage (% P: % N, % K: %N) for two plots of different soil fertility were established. These relations were used to study the cumulative effect of animal manure. A rapid improvement of plant nutrition was shown for the initially deficient plot. This conclusion was checked by comparing nitrogen (N) content and herbage dry matter (DM) yield. The economic benefits of animal manure in disadvantaged areas are discussed.

Key words

fertilization manure plant nutrition grassland mineral diagnosis 

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Copyright information

© Martinus Nijhoff Publishers, Dordrecht 1987

Authors and Affiliations

  • M. Duru
    • 1
  1. 1.Unité de Recherche sur les Systèmes Agraires et le DéveloppementINRA - Station d’AgronomieCastanet TolosanFrance

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