Research entitled The Effect of Coconut Shell Biochar and Cow Manure on the Growth and Production of Cucumbers (Cucumis sativus L.) on Red and Yellow Podzolic Soil. Research was carried out at the Cold Water Experimental Garden, Faculty of Agriculture, Riau Islamic University, Pekanbaru City for 3 months starting from May to July 2023. The aim of this research was to determine the main and inte…