Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-26T03:56:06.174Z Has data issue: false hasContentIssue false

The effect of the size of soil aggregates on nutrient supply

Published online by Cambridge University Press:  27 March 2009

I. S. Cornforth
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts

Summary

Soil aggregates of different sizes, separated by sieving, and artificial aggregates stabilized by a chemical conditioner were used to study the effect of particle size on the uptake of nitrogen and phosphorus by plants growing in pots. Phosphate uptake was consistently less from the coarser than from the finer fractions of soil. The uptake of nitrate was also greater from smaller than from larger aggregates, despite its mobility in soil moisture.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1968

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

Barber, S. A., Walker, J. M. & Vasey, E. H. (1963). Mechanism for the movement of plant nutrients from the soil and fertilizer to the plant root. J. agric. Fd Chem. 11, 204–7.CrossRefGoogle Scholar
Bray, R. H. (1954). A nutrient mobility concept of soil plant relationships. Soil Sci. 78, 922.CrossRefGoogle Scholar
Olsen, S. R., Kemper, W. D. & Jackson, R. D. (1962). Phosphorus diffusion to plant roots. Proc. Soil Sci. Soc. Am. 26, 222–7.CrossRefGoogle Scholar
Tepe, W. & Leidenfrost, E. (1958). A comparison between plant-physiological, kinetic and static values of soil analysis. I. Kinetics of soil ions as measured by means of ion exchangers. Landw. Forsch. 11, 217–29.Google Scholar
Wiersum, L. K. (1961). Utilization of soil by the plant root system. Pl. Soil 15, 189–92.CrossRefGoogle Scholar
Wiersum, L. K. (1962). Uptake of nitrogen and phosphorus in relation to soil structure and nutrient mobility. PI. Soil 16, 6270.CrossRefGoogle Scholar