Effect of adding different rates of fermented sawdust on some physical-chemical and Fertility properties in heavy texture soil and productiving of bean

This research was conducted at the Nashabia Research Station in Damascus Countryside governorate for the two years (2021-2020) with the aim of studying the impact of the treatment of clay soils at different rates of fermented sawdust by descent (25%, 50%, 75%) The rest of the percentage is added in the form of fermented municipal fertilizer in some physical, chemical and fertility characteristics and in bean productivity.The impact of these additives has been compared with municipal manure, fermented sawdust, metal manure and witness .The results show that the addition of organic enhancers reduced the apparent density and morally increased the total pores of organic transactions and the treatment of compost sawdust exceeded 100%, and the results showed a decrease in the point of wilting and a moral increase in field capacity and water available in the soil when adding organic enhancers. The results of available potassium and intersaltic capacity showed a moral superiority of compost transactions over metal manure and witness. Fermented sawdust recorded 100% higher content of organic matter and morally increased compared to metal manure and witness. The differences were not moral with other organic transactions. The soil content of total azawat also increased in compost transactions and recorded moral differences excluding treatment (75% fermented sawdust +25% municipal fertilizer) compared to metal manure and witness. There were no moral differences between the witness and the metal manure, while the concentration of phosphorus available for the treatment of mineral manure, and the rest of the transactionsrespectively exceeded 50% compost +50%fermented sawdust< compost 25%+ 75% fermented sawdust 100% < fertilizer100% <lumine sawdust. The results show productivity and morphology indicators that exceed the treatment of metal manure and sawdust compost at the highest value and then the treatment of municipal manure ( . 1