A ridge-shaped Mushroom 

 bed. 



Mushrooms grown in a large box. 



Section of ridge-shaped bed: a is manure; 

 6, spawn ; c, layer of soil ; d, straw 

 covering. 



Section of Mushroom bed under 

 cover : the references are as 

 in the ridge-shaped bed. 



Fully-grown Mushroom 

 or Broiler. 



Mushrooms growing in a box : Light is excluded 

 by fixing on a deep lid. 



1077 



