Hussam Hdaiwah*(1), Mazen Nassour(1) and Issa Kbybo(2)
(1). Department of Horticulture, Faculty of Agriculture, Tishreen University, Latakia, Syria.
(2). Department of soil and water sciences, Faculty of Agriculture, Tishreen University, Latakia, Syria.
(*Hussam Hdaiwah , E-mail: Hussam. hdaiwah76@gmail.com)
Received: 8 /04/2022 Accepted: 15 /06/2022
Abstract:
TThe research was carried out in Lattakia, in cooperation by Horticulture, soil and water sciences Departments, Faculty of Agriculture, Tishreen University during two seasons (2018-2019) and (2019-2020). The aim of this research was to determine the role of bio and organic fertilization and phosphogypsum on some microbial groups (Bacteria,Fungi,Actinomycete) of planted soil with Chrysanthemum (Chrysanthemum grandiflorum). in order to getrid of phosphogypsum by safe way on environment,and as a result save the cost of fertilization,in addition to phosphogypsum is an important source of calcium ,sulphur,and phosphorous. Bio fertilizer by EM1(2ml\m2) was applied tow times, one week after planting and one month after the first one. organic fertilization and phosphogypsum was used for 2kg/m2 applied before planting. The results showed that the use of bio and organic fertilization and phosphogypsum caused an increase in EC and a decrease in pH in the studied soil , and an increase of fungi and actinomycete after addition of the phosphogypsum with organic or bio-fertilization or together ,compared with its number in the soil before planting and compared with a control. Bacteria,s number decreased with decrease in pH of the studied soil ,while the number increased in T1and T2 so the pH was (6.95,7.38) consecutively. Adecrease of the total number of microbial groups in end of the flowering compared with beginning was noticed for all treatments.
Keywords: chrysanthemum, biofertilizer EM1 , phosphogypsum ,organic fertilization
Full paper in Arabic: pdf