LH E STORY OF SLEN ii 
Spent Mushroom Manure is a real stable manure to 
which has been added 20% of rich top soil and then 
used to grow one crop of Mushrooms in the huge 
limestone caverns at West Winfield in Butler County. 
The heat of fresh manure is gone, but the organic 
content and fertility of good barnyard manure is 
retained. 
The high organic content, almost five times that 
of top-soil, is quite valuable in loosening heavy soils 
and increasing the moisture retention value. It is a 
long time source of mineral elements which are re- 
leased gradually through decomposition into the soil. 
New studies proved that organic plant foods such 
as mushroom Manure are absolutely vital in growing 
crops for human consumption. They claim that vege- 
tables grown without organic elements are almost 
valueless in supplying the needs of our body. 
Spent Mushroom ‘Manure is the all-purpose soil 
conditioner and is the answer to our fondest desires 
since the automobile has replaced the horse and regu- 
lar stable manure is almost not available to add to 
your garden. 
Spent Mushroom Manure has a wide variety of 
uses some of which are as follows: Fruit Growers use 
it as a mulch under fruit trees. The largest producers 
of fruit in Western Pennsylvania use hundreds of 
cubic yards annually. Commercial flower growers use 
thousands of cubic yards. Vegetable gardeners have 
been users for many years. The largest growers of 
Nurery Stock and Forest Trees in our section use 
thousands of tons each year. Our best kept cemeteries 
in the Pittsburgh District use hundreds of cubic yards 
annually. It is used by many Golf Courses. It is used 
in large quantities by our various parks. Nearly all 
landscape gardeners use it in large. quantities for 
planting and mulching. 
