Patent ID: 6205703
Filing Date: 2001-03-27
Classification: A01G

Abstract:
A casing material capable of sorption for stacks and beds for mushroom cultivation, for arrangement on a mushroom substrate, comprising peat fibers, cellulosic fibers and wood pulp fibers mixed with mineral substances with a predominant fine grain component of less than 10 mm, the mineral substances additionally containing expandable layered silicates, the casing material including:a) 50 to 80 percent by weight filter cake from paper manufacture; andb) 20 to 50 percent by weight aggregates selected from at least one of peat, natural vegetable fibers, ground limestone and marl, the casing material having a ratio of organic to inorganic portions of 90:10% to 60:40%, and a water storing capacity of up to 3 times absolutely dry net weight, the casing material being adjusted to a pH of 6.5 to 8.0; and further being adjusted with respect to nutrient content to less than 0.15% potassium, less than 0.5% nitrogen and less than 0.08% phosphorus.