Hostname: page-component-848d4c4894-pjpqr Total loading time: 0 Render date: 2024-07-06T10:56:50.620Z Has data issue: false hasContentIssue false

The nutrition of maize in sand culture II. The uptake of nitrogen and phosphorus and its relevance to plant analysis

Published online by Cambridge University Press:  27 March 2009

J. Glover
Affiliation:
East African Agriculture and Forestry Research Organization

Extract

The materials and methods have been described in the first paper of this series (Glover, 1953). All experiments were of 33 factorial design (Yates, 1937) involving three different levels of supply of nitrogen, phosphorus and potassium.

The results of the measurements are shown graphically in Figs. 1–4 inclusive. Because of the limits set by reproduction of Figs. 1 and 2 it is impossible to show minor variations due to different treatments. Where the curves of uptake run together one broad line is used to denote this. Deviations from this line are shown where they occur. Superimposed on the figures are lines denoting the length of the tasselling and silking periods. Thus a line covering a period of, say, 10 days and bearing the symbol T shows that tasselling in the particular series was completed in that period, and the first tassel was set at the date corresponding to the start of the line.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1953

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

REFERENCES

Glover, J. (1953). J. Agric. Sci. 43, 154.CrossRefGoogle Scholar
Goodall, D. W. & Gregory, F. G. (1947). Tech. Commun. Bur. Hort. E. Mailing, no. 17.Google Scholar
Sayre, J. D. (1948). Plant Physiol. 23, 267.CrossRefGoogle Scholar
Yates, F. (1937). Tech. Commun. Bur. Soil Sci., Harpenden, no. 35.Google Scholar