COMPARISON OF THE PHYSICAL AND CHEMICAL CHANGES IN LOCAL ORGANIC WASTE AFTER CULTIVATION OF THE GANODERMA LUCIDUM MUSHROOM AND COMPOSTING BY COMMON METHODS

Abstract

A study was carried out using local organic waste to develop Ganoderma lucidum mushroom, and assessing the physical and chemical changes occurring on the organic waste after the end of the mushroom cycle, and comparing it with the changes that occur to the organic waste after the composting process. The results of substrates properties ready for inoculation showed that the highest pH value was achieved at a rate of 6.93 with the A substrate (80% oak sawdust + 20% wheat bran) and that the highest moisture content of the substrates was achieved with the B substrate (80% palm trunk sawdust + 20% wheat bran) at a rate of 67.36%. The results showed that the highest production was achieved at a rate of 66.25 g / kg with the substrates B and decreased significantly (P> 0.05), and the lowest production was 18.03 g / kg with the substrates C (80% reeds straw + 20% wheat bran). The comparison results of the change in the physical and chemical properties of organic wastes after cultivation and after the composting showed an increased the rate of loss significantly in the dry matter after the composting process, and achieved at a rate of 39, 43.2 and 44.7% with palm trunk sawdust, reeds straw, cogon straw respectively. Whereas, the percentage of loss after the end of the yield cycle reached (28.71, 23.5 and 23.45%) with the substrate of palm trunk sawdust, reed straw, cogon straw, respectively. Conversely, the comparison results showed that the percentage of decrease in the carbon to nitrogen ratio increased significantly in the palm trunk sawdust after cultivation, and was achieved at a rate of 30.1%, while it reached a rate of 21.63% after the composting.