Fertilizer Recommendation Test for Different Types of Fertilizers on Soil Chemical and Fertility Properties, and on Eggplant Productivity

Abstract

his research was conducted in the Damascus Countryside in Damascus Governorate in 2023 and 2024, with the aim of studying the effect of Fermi Compost, fermented cow dung manure and mineral fertilizer in some chemical properties and in the productivity of the eggplant. Fertilizer additives (Fermi Compost, mineral and cow manure) in the quantities used according to the agricultural recommendation of summer vegetables, led to the absence of significant differences in acidity and soil conductivity. This shows the safe effect of the studied transactions, and none of the transactions caused soil salinization, Organic fertilizers significantly increased the soil organic matter content compared to the mineral and control treatments, and the Fermicompost treatment exceeded clearly on the treatment of fermented cow manure , the results showed that the fermicompost treatment was superior to the mineral fertilizer coefficient and the control in the soil content of the total nitrogen, while the treatment of the Fermi-compost showed no significant different with the treatment of compost. Fermented cow manure, as the results show more than the values of potassium and phosphorous available in the treatment of cow manure on the control, and with non-clear differences with the rest of the compost treatments, while the differences were not clear and in favor of my fermi treatment. Compost and metal compared to the control. All transactions outperformed the control in productivity. The results also showed significant differences in the fertilizer transactions among themselves, and the productivity was in the order of mineral fertilizers, followed by the Fermi Compost treatment, then the fermented cow manure.