Advertisement

Journal of Applied Phycology

, Volume 2, Issue 3, pp 269–272 | Cite as

Effect of seaweed concentrate on the growth and mineral nutrition of nutrient-stressed lettuce

  • I. J. Crouch
  • R. P. Beckett
  • J. van Staden
Article

Abstract

The effects of the seaweed concentrate ‘Kelpak’ on the growth and mineral nutrition of lettuce plants grown under conditions of varying nutrient supply were investigated. Kelpak significantly increased the yield and the concentration and amounts of Ca, K and Mg in the leaves of lettuce receiving an adequate supply of nutrients, but had little effect on nutrient stressed plants. Results are discussed in relation to the physiological mechanisms that have been proposed to explain the beneficial effects of seaweed concentrate on plants.

Key words

lettuce nutrient stress seaweed concentrate 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Abetz P, Young CL (1983) The effect of seaweed extract sprays derived fromAscophyllum nodosum on lettuce and cauliflower crops. Bot. mar. 26: 487–492.Google Scholar
  2. Beckett RP, van Staden J (1989) The effect of seaweed concentrate on the growth and yield of potassium stressed wheat. Plant Soil 116: 29–36.Google Scholar
  3. Beckett RP, van Staden, J (1990a) The effect of seaweed concentrate on the yield of nutrient stressed wheat. Bot. mar. 33: 147–152.Google Scholar
  4. Beckett RP, van Staden, J (1990b) The effect of seaweed concentrate on the uptake of foliar applied Cu, Mn and Zn by tomato seedlings. S. Afr. J. Bot 56: 389–392.Google Scholar
  5. Blunden G (1972) The effects of aqueous seaweed extract as a fertilizer additive. In: Proc. 7th International Seaweed Symp., University of Tokyo Press, Tokyo, 584–589.Google Scholar
  6. Blunden G, Wildgoose PB (1977) The effects of aqueous seaweed extract and kinetin on potato yield. J. Sci. Food Agric. 28: 121–125.Google Scholar
  7. Booth E (1966) Some properties of seweed manures. In: Proc. 5th International Seaweed Symp., Pergamon Press, London, 349–357.Google Scholar
  8. Caiozzi M, Peirano P, Rauch E, Zunino H (1968) Effect of seaweed on the levels of available phosphorus and nitrogen in a calcareous soil. Agron. J. 60: 324–326.Google Scholar
  9. Castillo NO (1966) Effects of the brown alga,Macrocystis integrifolia in increasing iron availability of a calcareous soil. An. Fac. Quim. Far., University of Chile. 18: 120–126. In: Chemical Abstracts 68: 104216.Google Scholar
  10. De Villiers J, Kotze WAG, Joubert M (1983) Effect of seaweed foliar sprays on fruit quality and mineral nutrition. The Deciduous Fruit Grower 33: 97–101.Google Scholar
  11. Featonby-Smith BC (1984) Cytokinins inEcklonia maxima and the Effect of Seaweed Concentrate on Plant Growth. Ph.D. Thesis, University of Natal, Pietermaritzburg, 153 pp.Google Scholar
  12. Francki RIB (1960a) Manurial value of seaweeds: I. Effects ofPachymenia himantophora andDurvillea antarctica meals on plant growth. Plant Soil 12: 297–310.Google Scholar
  13. Francki RIB (1960b) Studies in manurial value of seaweeds: II. Effects ofPachymenia himantophora andDurvillea antarctica on the immobilization of nitrogen. Plant Soil. 12: 311–323.Google Scholar
  14. Glass ADM (1989) Plant Nutrition. An Introduction to Current Concepts. Jones and Bartlett, Boston, 234 pp.Google Scholar
  15. Hewitt EJ (1966) Sand and Water Culture Methods Used in the Study of Plant Nutrition, 2nd Edition. Commonwealth Agricultural Bureaux, Farnham Royal, Bucks, 547 pp.Google Scholar
  16. Lynn LB (1972) The chelating properties of seaweed extractAscophyllum nodosum vs.Macrocystis perifera on the mineral nutrition of sweet peppers,Capsicum annuum. M. S. Thesis, Clemson University, Clemson, S.C.Google Scholar
  17. Metting B, Zimmerman WJ, Crouch IJ, van Staden J (1990) Agronomic uses of seaweed and microalgae. In Katsuka IA (ed.), Introduction to Applied Phycology. SPB Academic Publishing, The Hague (in press).Google Scholar
  18. Nelson WR, van Staden J (1984) The effect of seaweed concentrate on growth of nutrient-stressed greenhouse cucumbers. HortScience 19: 81–82.Google Scholar
  19. Senn TL, Kingman AR (1978) Seaweed research in crop production. Econ. Dev. Admin. U.S. Dept. of Commerce. Washington, D.C. i–xx, 1–25.Google Scholar

Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • I. J. Crouch
    • 1
  • R. P. Beckett
    • 1
  • J. van Staden
    • 1
  1. 1.UN/FRD Research Unit for Plant Growth and Development, Department of BotanyUniversity of NatalPietermaritzburgSouth Africa

Personalised recommendations