Ababel hamoud*(1) and Hayat watfa(2)

(1). Natural Resources, General Authority for Agricultural Scientific Research, Damascus, Syria.
(2). Faculty of Agriculture, Damascus University, Damascus , Syria.
(*Corresponding author: Ababel Hamoud. E-mail:ababelhamod@gmail.com).

Received: 3/03/2024             Accepted:25/05/2024

Abstract: 

The experiment was carried out at the Al-Nashabiya station of the General Authority for Scientific Agricultural Research in Damascus Countryside Governorate in the year 2021), with the aim of determining the optimal time for fermentation of sawdust and the study of changes in some of the chemical properties of compost during its manufacture of sawdust. Where the sawdust was brewed over four periods (0, 1, 2, 4) , and to determine the degree of ( pH, EC) and the percentage of organic carbon,total nitrogen, organic matter, and C/N . The results of the statistical analysis The pH decreased in fermented sawdust at the beginning of the fermentation at 7.27, then the degree of pH rose to be alkaline at the end of the fermentation and reached 8.17. The degree of Ec is two months after the start of the fermentation, and then it decreased at the end of the fermentation process, and the percentageof total nitrogen content was observed in the start of the fermentation due to its nitrogenous poverty. A significant decrease in organic carbon and organic matter was also observed with increased fermentation time, and the results showed that the percentage of C/N was high in fermentation raw materials and then decreased after two months with significant differences in favor of the treatment 4 months. The treatment (4 months) is the best results and with clear differences in all the indicators studied in the experiment.
Key words: sawdust, carbon, nitrogen, organic matter, compost, fermentation.

Full paper in Arabic: pdf