D. Mohammed Abdullah Abdullah
Department of Soil Science and Water Resources, College of Agriculture, University of Baghdad, Iraq
Q. Jamal Abdalrasool
Department of Soil Science and Water Resources, College of Agriculture, University of Baghdad, Iraq
A field experiment was conducted on the Arizona potato variety (Solanum tuberosum L.), during the spring season of 2025 in one of the research fields belonging to the College of Agricultural Engineering Sciences, University of Baghdad. The aim of this study is to determine the optimal fertilizer combination of Bulky and non-Bulky organic fertilizers for potato yield and growth indicators. The results showed that treatment (NG2B2) gave the highest indicators of high plant , number of shoot , chlorophyll , dry wight m in value (88.00 cm , 7.11 plant-1 ,40.20 SPAD ,4.56 mg h-1 ) respectively and treatment B2M2 give the highest value of tuber yield 59.9 mg h-1, These results highlight the importance of integrating both Bulky and non-Bulky organic fertilizers with mineral fertilizers to achieve an optimal combination that supplies essential nutrients to the plants while maintaining soil health.