Periodical Literature. 521 



A three year experiment by Bohmerle to de- 



Effect temiine whether the removal of moss would 



of effect tree growth gave the result that, in 



Moss the dry year 1908, the plots on which the 



on moss had been killed and burned over 



Increment showed considerably better increment than 



the plot with the ground cover undisturbed. 



Hence periodic removal or deadening of moss cover is advocated. 



Moosdecke und Holszuwachs. Forstwiss. Centralblatt. Feb. 1912. Pp. 



IIO-II. 



I 

 Through the efforts of Professor Moeller 

 Humus and demonstrations at the experiment gar- 



awe? den of the mycological laboratory' at Ebers- 



Soil walde a revolution in the practice of plant- 



Preparation ing pine and in the appreciation of the value 

 for of raw humus (dry turf) has been brought 



Planting about. Ten years of repeated experiments 



have proved that "the method of planting 

 pine in furrows turned over by the forest plow is extraordinarily 

 bad, yea nonsensical ; and that it is a mistake anywhere to make 

 seedbeds on turned over soil so that the surface soil of 4 inches 

 consists of non-humose sand, although this furnishes a beautiful 

 bed for manipulation." 



The most satisfactory tool, which, at no more expense than a 

 turning plow, mixes humus and soil perfectly is Geists's Wuhl- 

 grubber (mole plow; see F. Q., vol. VII, p. 339). That even the 

 worst form of raw humus under proper conditions can be used as 

 fertilizer for conifers with an effect which no other fertilizer can 

 produce has been amply demonstrated (see F. Q., vol. VI, p. 

 291). 



The use of the humus fertilizer in seedling nurseries, as well as 

 field plantations, avoiding the use of plows has in Eberswalde 

 produced the result, that the size of plants which formerly any- 

 where would have been considered extraordinary have become 

 mere average plants. 



Demonstration und Vortrap im Versuchsgartcn, etc. Zeitschrift fiir 

 Forst-u. Jagdwesen, May, 1912. Pp. 330-332. 



