sˌʌm stˈʌdiz lˈiːv ɪɾ ɔnðə fˈiːld tə pɹətˈɛkt ðə sˈɔɪl fɹʌm ɪɹˈoʊʒən ænd tʊ ˈæd ɔːɹɡˈænɪk mˈæɾɚ, wˌaɪl ˈʌðɚz tˈeɪk ænd bˈɜːn ðə kˈoʊpɹədˌʌkt tə pˈaʊɚ ðɪ ˈɛθɐnˌɑːl plˈænt, bˌʌt duːnˌɑːt ɐdɹˈɛs ðə ɹɪzˈʌltɪŋ sˈɔɪl ɪɹˈoʊʒən wˌɪtʃ wʊd ɹᵻkwˈaɪɚɹ ˈɛnɚdʒi ɪnðə fˈɔːɹm ʌv fˈɜːɾəlˌaɪzɚ tə ɹᵻplˈeɪs.
Some studies leave it on the field to protect the soil from erosion and to add organic matter, while others take and burn the coproduct to power the ethanol plant, but do not address the resulting soil erosion (which would require energy in the form of fertilizer to replace).