Comparison of Different Plant Digestion Methods ( Di-acid & Microwave) for Phosphorus Determination Content of Potato Leaf Using Spectrometry Grown in Erzurum: Pasinler and Oltu District Agricultural Soils . IJIRCST [Internet]. 2017 Nov. 1 [cited 2024 Nov. 24];5(6):407-11. Available from: https://acspublisher.com/journals/index.php/ijircst/article/view/13448