Effect of Adding Mineral Fertilizer NPK and Biochar on the Potential Buffering Capacity of Potassium and its Relation to Corn Yield in Calcareous Soil in Northern Iraq
Mağallaẗ al-Qādisiyyaẗ li-l-ʿulūm al-zirāʿiyyaẗ/Al-Qadisiyah journal for agriculture sciences