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The value of liquid digested sewage sludge. III. The results of an experiment on barley

Published online by Cambridge University Press:  27 March 2009

E. G. Coker
E. G. Coker
Affiliation:
Hertfordshire Institute of Agriculture, St Albans
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Extract

In a trial laid out to compare the effects of liquid digested sludge with equivalent nitrogen and phosphate fertilizers as ‘Nitra-shell’ and superphosphate, growth data, and data of grain and straw yield were obtained.

Liquid digested sludge increased the dry weight and shoot number at the ‘tillering’ stage, and dry weight and ear number at the flowering stage, more than equivalent fertilizer.

By 13 May, sludge-treated plants had absorbed more nitrogen than fertilizer-treated plants. By 19 June this was reversed for the sludge-treated plants had then absorbed 81% of the nitrogen absorbed by fertilizer-treated plants; ripe grain from sludge plots had a lower nitrogen percentage than grain from fertilizer plots.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 67 , Issue 1 , August 1966 , pp. 105 - 107
Copyright
Copyright © Cambridge University Press 1966

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References

REFERENCES

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