Show manure for mushrooms horse manure furnishes the die only satisfactory compost known tor for mushroom growing this may contain an ample supply of straw which has been used in bedding the straw not only adds to the bulk of the material but it also reaches a desirable stage of dee da composition in a comparatively short time and has that moisture holding capacity which Is so desirable in mush bush room growing growL ng somo some growers advise the addition ot of I 1 13 3 of 0 fresh loam in the compost montreal herald |