sˈɪns ðə nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi z, ˌæɡɹɪkˈʌltʃɚɹəl pɹˌɑːdəktˈɪvᵻɾi hɐz ɪŋkɹˈiːst dɹəmˈæɾɪkli, dˈuː lˈɑːɹdʒli tə ðɪ ɪŋkɹˈiːst jˈuːs ʌv ˈɛnɚdʒiɪntˈɛnsɪv mˌɛkɐnᵻzˈeɪʃən, fˈɜːɾəlˌaɪzɚz ænd pˈɛstɪsˌaɪdz.
Since the 1940s, agricultural productivity has increased dramatically, due largely to the increased use of energy-intensive mechanization, fertilizers and pesticides.