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Investigations in crop husbandry. III. Effect of time of application of sulphate of ammonia to wheat

Published online by Cambridge University Press:  27 March 2009

F. H. Garner  and
H. G. Sanders
F. H. Garner
Affiliation:
School of Agriculture, Cambridge
H. G. Sanders
Affiliation:
School of Agriculture, Cambridge
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Extract

1. Over a period of six years seven field experiments were carried out to study the effect of the time of application of sulphate of ammonia to autumn-sown wheat.

2. Three experiments were located on light gravelly soil which had been farmed highly for some years, and in those three cases sulphate of ammonia decreased yield, irrespective of time of application; the reduction in yield was of the order of 10 per cent. and is ascribed to more lodging and greater incidence of “foot-rot”.

3. Three experiments were located on heavy clay soil in poor condition; in these sulphate of ammonia gave percentage increases in yield of 18, 20 and 7.

4. Evidence is produced that early dressings of sulphate of ammonia do not affect germination or plant establishment, but that they tend to increase tiller formation by the end of February.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 26 , Issue 2 , April 1936 , pp. 316 - 327
Copyright
Copyright © Cambridge University Press 1936

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