In the U.S.A., commercial development of fluid nitrogen fertilizers has proceeded rapidly; in Europe the pace has been much slower. It is pertinent to enquire into the cause of this discrepancy and, in particular, to investigate whether climatic or soil conditions play a significant rôle. The author reviews the results of field trials in many European countries and does in fact conclude that mild, wet winters place a severe restriction on autumn application of ammonia.
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References
1.
HauckR. D. and RusselD. A. (1969). Outlook on Agriculture, 61.
2.
Anon, (undated).l'Ammoniac anhydre, engrais azoté. L'Air Liquide Bulletin, 20 pp.
3.
Anon. (1967). Hectares. Revue d'Expansion mondiale de Technique et Methodes pour l'Agriculture.
4.
BuchnerA. (1966). Landw. Forschung, 19185.
5.
van BurgP. F. J. (1967). Netherl. Nitrogen tech. Bull. No. 3.37 pp.
