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Effects of soil compaction on yield and fertilizer requirement of sugar beet

Published online by Cambridge University Press:  27 March 2009

A. P. Draycott ,
R. Hull ,
A. B. Messem  and
D. J. Webb
A. P. Draycott
Affiliation:
Broom's Barn Experimental Station, Higham, Bury St Edmunds
R. Hull
Affiliation:
Broom's Barn Experimental Station, Higham, Bury St Edmunds
A. B. Messem
Affiliation:
Broom's Barn Experimental Station, Higham, Bury St Edmunds
D. J. Webb
Affiliation:
Broom's Barn Experimental Station, Higham, Bury St Edmunds
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Summary

Five experiments (1967–9) on soils formed from calcareous drift examined the effects of soil compaction on seedling emergence and yield of sugar beet, also the interaction between compaction and response to nitrogen fertilizer (N) and phosphate fertilizer (P2O5). Some seedbeds were compacted in winter, others in spring and others prepared with the minimum of compaction; each was tested with 0·6, 1·2 and 1·8 cwt/acre N plus 0·8 cwt/acre additional P2O5. All plots were given a basal dressing of 0–8 cwt/acre P2O6 and enough of other major nutrients.

Compaction decreased seedling populations in four experiments but increased it in one year, when the weather was dry while the seeds were germinating. However, in every experiment compaction significantly decreased yield of roots and sugar. It also interacted with the fertilizer treatments, significantly on average, increasing nitrogen requirement and decreasing phosphate requirement. On average, 0·6 cwt/acre N and 1·6 cwt/acre P2O5 gave the greatest yield without compaction and 1·2 cwt/acre N and 0·8 cwt/acre P2O6 with compaction.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 75 , Issue 3 , December 1970 , pp. 533 - 537
Copyright
Copyright © Cambridge University Press 1970

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References

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