Soil degradation and diseases such as stem rust are major concerns globally; approximately 40% of the world's agricultural land is seriously degraded.
sˈɔɪl dᵻɡɹɐdˈeɪʃən ænd dɪzˈiːzᵻz sˈʌtʃ ɐz stˈɛm ɹˈʌst ɑːɹ mˈeɪdʒɚ kənsˈɜːnz ɡlˈoʊbəli; ɐpɹˈɑːksɪmətli fˈoːɹɾi pɚsˈɛnt ʌvðə wˈɜːldz ˌæɡɹɪkˈʌltʃɚɹəl lˈænd ɪz sˈɪɹiəsli dᵻɡɹˈeɪdᵻd.