The production of the field decreased because of the low soil nutrient content of the field. There are two reasons why the soil content of the cornfield is low. First, the farmer failed to alternate the crops produced in his field. He just used one type of crop, therefore, the same type of nutrients were used up from his field. He should have planted legumes like peanuts after harvesting corn so that the soil will recover the nutrients with the help of the nitrogen-fixing bacteria found in the roots of legumes. Second, the dead corn stalks were removed from the field. The decomposers act on detritus to convert them into organic nutrients. Since there are no dead materials to be broken down by the decomposers, the soil remained lacking in nutrients which are very vital in the growth and production of the corn.