Looking at a document on corn. XX producer has agreed to plant and grow corn for XX company, and XX company is specifying the activities that must be carried out by the producer, i.e, plowing, etc. Since I'm not an agricultural expert, I need help sorting out what all these words/phrases actually mean so that I understand what the producer is being asked to do. Is "Clearing of canals" an accurate translation for "Tumba de canales"? Tumba de canales = Clearing of canals???