1024 JOURNAL OF I'ORESTRV 



Action des Bngrais sur les vegetaux ligneux {The Effect of Fer- 

 tilisers on Woody Plants) . By Lucien Chancerel* 



In spite of its evident importance, the study of the efifect of fer- 

 tihzers on woody plants has been neglected for a long time. At shorter 

 or longer intervals experiments have been recommended. Some ex- 

 periments were even carried on, notably in France, by Chevandier, 

 about 1850. But little attention was paid to the knowledge gained, and 

 the experiments, not continued, were soon forgotten. 



For several years the question has again presented itself for deter- 

 mination. 



It is to the Belgian foresters that belongs the honor of having again 

 brought up the subject. In Belgium, as elsewhere, the experiments 

 were carried on first and chiefly in the nurseries. Huberty and Delville 

 devoted themselves to the work and made known the results ; but there 

 were also some tests made in the forest, notably in the Campine. Hu- 

 berty enumerated in 1901, in the "Bulletin de la Societe centrale for- 

 estiere de Belgique," those which were carried on by Naets on the estate 

 of Count Merode-Westerloo,^ In 1903- 1904 Halleux gave a detailed 

 abstract of the results obtained in the afforestation of the Campine. 

 Finally, in 1908 Haumont^ gave an account of experiments carried on 

 with broad-leaved trees in the State forest of Dilserbrosch. 



In Germany the action of fertilizers on woody plants has been studied, 

 in later years, by a number of people, notably by Schwappach, of the 

 Eberswalde Forest School, and Goetting, of the Agricultural Institute 

 of Luedinghausen ; by von Daacke and Hallbauer, at Metz ; Scott- 

 Preston, at Dobrilugk; Ramm, at Calmbach ; Wendt, at Friedewald; 

 Schalk, at Rehau ; Reichart, at Freising . . . and finally, by Ramann 

 and Felber, at Stassfurt, and Giersberg,^ at Berlin. 



In Luxemburg, Beiler* and Theis made about the same tests. 



The question is one of importance in Austria and in Denmark. 



In France, Thezard ascertained that fertilizers, applied in an oak 

 forest in Eure, had caused an increase both in acorn production and in 

 growth of wood. Experiments were carried on by Henry in the State 

 forest of Chinon. At the research station of the forest school of 

 Nancy, Cuif studied the action of various fertilizers on plants raised in 



* "Revue des Eaux et Forets," Series 4, Vol. VIII. 



^J. Huberty: Emploi des engrais chimiques en culture forestiere. Bruxelles, 

 1901. 



^L. Haumont: Emploi des engrais chimiques en sylviculture. Bruxelles, 1908. 

 Dr. Giersberg: Kunstliche Dungung im forstlichen Betriebe. 3d edition. 

 Berlm, 1905. 



*Prof. J. P. Beiler: Kunstdiingun im forstlichen Betriebe. Berlin, 1907. 



