Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-03T05:44:26.277Z Has data issue: false hasContentIssue false
  • English
  • Français

Nitrogen studies in a coffee soil II. The influence of mulch on natural and fertilizer levels of nitrate and ammonia in the top-soil

Published online by Cambridge University Press:  27 March 2009

J. B. D. Robinson
J. B. D. Robinson
Affiliation:
Coffee Services, Department of Agriculture, Kenya
Get access Rights & Permissions [Opens in a new window]

Extract

1. Evidence is presented to show that compared with an unmulched soil, a surface mulch reduces the nitrate-N levels significantly following an application of a nitrogen fertilizer during the rains.

2. Natural nitrate-X values in the top-soil were lower under a gravel mulch than a Napier grass mulch. It is concluded that the effect of a Napier grass-mulch cover in lowering natural soil nitrogen-N is offset in part by nitrates formed from the nitrogen it contains.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 56 , Issue 1 , February 1961 , pp. 49 - 59
Copyright
Copyright © Cambridge University Press 1961

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

Allison, R. V. (1939). Com. Fertil. 07, p. 12.Google Scholar
Anon. (1958/1959). Annu. Rep. Coffee Research Services, Kenya, p. 32.Google Scholar
Birch, H. F. (1958). Plant & Soil, 10, 9.CrossRefGoogle Scholar
Birch, H. F. (1959). Plant & Soil, 11, 262.CrossRefGoogle Scholar
Bremner, J. M. & Shaw, K. (1958). J. Agric. Sci. 51, 22.CrossRefGoogle Scholar
Bremner, J. M. & Shaw, K. (1958). J. Agric. Sci. 51, 40.CrossRefGoogle Scholar
Gethin-Jones, G. H. (1949). Comm. Bur. Soil Sci., Tech. Comm. 46, 92.Google Scholar
Greenland, D. J. (1958). J. Agric. Sci. 50, 82.CrossRefGoogle Scholar
Griffith Ap, G. (1951). Emp. J. Exp. Agric. 19, 1.Google Scholar
Griffith Ap, G. (1952). Trop. Agriculture, Trin. 29, 50.Google Scholar
Jacks, G. V., Brind, W. D. & Smith, Robert (1955). Comm. Bur. Soil Sci., Tech. Comm. 49, 32.Google Scholar
Jones, P. A., Robinson, J. B. D. & Wallis, J. A. N. (1960). Emp. J. Exp. Agric. (in the Press).Google Scholar
Lamb, J. & Chapman, J. E. (1943). J. Amer. Soc. Agron. 35, 567.CrossRefGoogle Scholar
Mills, W. R. (1953). E. Afr. Agric. J. 19, 53.Google Scholar
Pereira, H. C. & Jones, P. A. (1954). Emp. J. Exp. Agric. 22, 23.Google Scholar
Pereira, H. C. (1955). J. Agric. Sci. 45, 401.CrossRefGoogle Scholar
Pereira, H. C. (1957). J. Agric. Sci. 49, 459.CrossRefGoogle Scholar
Robinson, J. B. D. (1956). E. Afr. Agric. J. 22, 76.Google Scholar
Robinson, J. B. D. (1958). J. Soil Sci. 9, 58.CrossRefGoogle Scholar
Robinson, J. B. D. (1960). J. Agric. Sci. (in the Press).Google Scholar
Roller, E. M. & McKaig, N. (1939). Soil Sci. 47, 307.CrossRefGoogle Scholar
Stent, H. B. (1937). Annu. Rep. Coffee Research Station, Tanganyika, p. 47.Google Scholar