由于孟山度公司推出一系列可以抵抗草甘膦的转基因农作物,美国农户得以提高草甘膦除草剂用量,这导致杂草抵抗力提高,可以抵抗这种除草剂的“超级杂草”也随之滋生蔓延。美国农学家日前表示,超级杂草对草甘膦除草剂的抵抗能力已经令中西部地区轮作作物种植户疲于应对杂草。专家称,农业主产区的农户应当考虑深耕土地作法,以应对日益加剧的杂草问题。早在几十年前美国农户就不再使用深耕土地的 As Monsanto introduced a series of GM crops that are resistant to glyphosate, U.S. farmers are able to increase the amount of glyphosate herbicide that leads to increased weed resistance and resistance to the herbicide “super weed” Also will be breeding and spreading. U.S. agronomists said recently that the resistance of super weeds to glyphosate herbicides has weeded the weeds in the central and western crop rotation. Experts say farmers in major agricultural producing areas should consider plowing land practices in response to the growing problem of weeds. As early as decades ago, American farmers no longer used the land for deep plowing