Hostname: page-component-745bb68f8f-b95js Total loading time: 0 Render date: 2025-01-22T03:49:55.876Z Has data issue: false hasContentIssue false
  • English
  • Français

The phosphorus requirement of lettuce

1. Use of P intensity estimates to predict the response curve

Published online by Cambridge University Press:  27 March 2009

R. Smith  and
M. A. Scaife
R. Smith
Affiliation:
National Vegetable Research Station, Wellesbourne, Warwick
M. A. Scaife
Affiliation:
National Vegetable Research Station, Wellesbourne, Warwick
Get access Rights & Permissions [Opens in a new window]

Summary

The optimal intensity of P supply for lettuce was investigated in a pot experiment with five soils, six levels of P application (0, 15, 30, 60, 120, 240 ppm) and three times of harvest (2, 3 and 4 weeks after emergence). The P adsorption isotherm for each soil was measured in 0.01 M CaCl2.

All soils responded strongly to P application, the amounts required for maximum growth varying from 120 ppm on a sandy soil to 300 ppm on a moss peat. The differences in requirement were related to the P adsorption by the soil, and on all soils a solution P concentration of about 1 ppm resulted in maximum growth.

The Optimal leaf P concentration in young lettuce was about 0·6%.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 80 , Issue 1 , February 1973 , pp. 111 - 117
Copyright
Copyright © Cambridge University Press 1973

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Balmukand, Bh. (1928). Studies in crop variation. V. The relation between yield and soil nutrients. J. agric. Sci., Camb. 18, 602–27.CrossRefGoogle Scholar
Balvoll, G. (1970). Phosphorus requirement and phosphorus uptake of lettuce plants grown at different temperatures. Meld. Norg. Landbr Høisk. 49, 15.Google Scholar
Boyd, D. A. & Dermott, W. (1964). Fertiliser experiments on maincrop potatoes 1955–61. J. agric. Sci., Camb. 63, 249–59.CrossRefGoogle Scholar
Cleaver, T. J. (1972). Rep. Nat. Veg. Res. Stn 1971.Google Scholar
Goodall, D. W. & Gregory, F. G. (1947). Chemical composition of plants as an index of their nutritional status. Technical communication no. 17. Imperial Bureau of Horticulture and plantation crops.Google Scholar
Grant Lipp, A. E. & Goodall, D. W. (1958). Nutrient interactions and deficiency diagnosis in the lettuce. IV. Phosphorus content and response to phosphorus. Aust. J. biol. Sci. 11, 30–40.CrossRefGoogle Scholar
Gunary, D. (1970). A new adsorption isotherm for phosphate in soils. J. Soil Sci. 21, 72–7.CrossRefGoogle Scholar
Hunt, J. (1967). Rep. Nat. Veg. Res. Stn 1966, p. 38.Google Scholar
Jackson, M. L. (1958). Soil Chemical Analysis, pp. 141–44. London: Constable and Co. Ltd.Google Scholar
F., M. A. A.. (1967). Fertiliser recommendations for agricultural and horticultural crops. N.A.A.S. Advisory paper no. 4.Google Scholar
Mattingly, G. E. G. (1965). In Soil Phosphorus, Technical bulletin no. 13. Proc. Conf. NAAS Soil Chemists, Oct. 1962. London: H.M.S.O.Google Scholar
Prummel, J. (1957). Fertiliser placement experiments. Pl. Soil 8, 231–53.CrossRefGoogle Scholar
Ozanne, P. G. & Shaw, T. C. (1967). Phosphate sorption by soils as a measure of the phosphate requirement for pasture growth. Aust. J. agric. Res. 18, 601–12.CrossRefGoogle Scholar
Roorda van Eysinga, J. P. N. L. & Smilde, K. W. (1971). Nutritional Disorders in Glasshouse Lettuce, pp. 56. Wageningen: Centre for Agricultural publishing and documentation.Google Scholar
Steenbjerg, F. & Jakobsen, S. T. (1963). Plant nutrition and yield curves. Soil Sci. 95, 69–88.CrossRefGoogle Scholar