The aim of this research is to determine the best date and culture medium for the
production of big rolls consisting of seed mixture (Lolium perenne, Festuca Arundinacea,
Festuca rubra, Poa partensis) with the lowest costs. Seven different mediums
were
experimented in two different culture dates (15 September and 1 April).
The results showed that the mediums consisting of turf or spent mushrooms compost
gave the best germination rate (78-84%) in the two culture dates. They also gave ready big
rolls in a period of time less than in the other mediums (78-102 days). The mediums also
gave the best quality of big rolls in terms of light weight (41.96- 53.89 kg/m2), coverage
rate (93-98%), and color.
The medium that consisted of spent mushroom compost achieved an economic
increase higher than that in the other mediums, where the coefficient of profitability in the
former was (194.4%).