تطوير أنتاج الفطر الزراعي الأبيض باستعمال أوساط محلية وتدعيمها حيويا

Abstract

The common reed plants growing naturally on the middle and south of Iraq . They form very large quantity of wastes , while in this location wheat straw quantity decrease and its price increase . On the other hand there are a large quantity from Sunflower head wastes . This study aims to evaluate Agaricus bisporus productivity using three substrates formulation and four casing soil .The three substrate formulation were (i) Wheat straw (ii) Common reed straw (iii) Wheat straw 60% + Common reed straw 40% . They were amended with chicken manure , urea , gypsum and inoculated with Streptomyces O3 . Casing soils were included (1) Peat moss 90% + 10% CaCO3 , (2) Peat moss 45% + sand soil 45% + 10% CaCO3 , (3) Composted sunflower head 90% + 10 CaCO3 and (4) Peat moss 30% + sand soil 30% + composted sunflower head 30% + 10% CaCO3 . The compost of sunflower head was prepared with 10% cows manure (v/v) during one year and thereafter heat treated during 48h at the end of the composting period . Results indicated that the substrate (i) was given a higher yield 460.68 g /5 Kg wet weight of substrate , Substrate (ii) was given a higher fruit bodies weight 41.78 g , longer production cycle 60.75 days and lower protein content 16.51% , compared with substrate (i) which was given 23.28 g , 58 days and 17.60% respectively . Casing soil (4) was given higher yield and fruit bodies weight were 474.65 g / Kg wet weight of substrate , protein content 18.44 % and shorter production cycle period 58 days . All substrates and casing soils hadn’t clear effect on fruit bodies content from amino acids were included alanine , aspartic acid , glutamic acid , glycine and threonine .