HABERHAUFFE, M.— Uber die Hederich vertilgung mit- 



tels Eisenvitriol. 

 Ztschr. Landw., Sachsen. 

 Fuhlings Landw. Ztg., (1899), S. 238. 



HAGLUND, E. & H. VON FEILITZEN — (Ora ograesets 



utrotande genom besprutning med 

 jaernvitriol.) 



Svenska Mosskulturfor. Tidskr., 18 (1904), No. 6, pp. 413-420. 

 E. S. R. 16, p. 1091. 



Preliminary experiments on moor soils showed that the spraying 

 method furnishes an effective means of checking, if not killing, many 

 weeds growing on such soils. 



HANDTKE, ( ).— (Hederichvertilgung). 



Ztschr. Landw'. Kammer. Prov. Schlesien, (1898), S. 9(59. 

 Lupiness and Serradella suffered injury. 



HANSEN, J. — Anbauversuche mit verschiedenen Kultur- 

 pflanzen (Vertilgung des Hederich durch 

 Verspritzen). 



Deut. Landw. Presse, (1903), No. i, S. 4. 



Centbl. Agr. Chem., Bd. 33, S. 69. 



A 15 per cent solution S. of I. gave very successful results. 



HEINRICH, ( ).— Neue Mittel zur Vertilgung von Hederich 

 und Ackersenf. 



Deut. Landw. Presse, (1900), S. 666. 



Use of fertilizers to be preferred to S. of I., e. g. Chilisaltpeter, Am- 

 monium Sulphate, Chloride Potash (40 per cent). 



HILLMANN, P. — Die Bekampfung des Hederichs durch Be- 

 spritzung mit Salzlosungen. 



Mitt. Deut. Landw. Gesell., 18, (1903), S. 80. 

 Jahresber. Agr. Chem. 46, S. 249. 

 Centbl. Agr. Chem., Bd. 32, S. 463. 



A 15 per cent solution of S. of I. applied at the rate of 400-500 1. per 

 hectare gave the best results. If dew is on the leaves the spraying 

 will do no good. Clover is as little injured as cereals. 



HILLMANN, P. — Die Ergebnisse der Umfrage betr. die Un- 

 krautvertilgung. 



Deut. Landw. Presse, Bd. XXIX, S. 416. 



Use of molasses with S. of I. for plants with smooth leaves. A pre- 

 liminary experiment with thistles apparently successful. 



