马铃薯是高产经济作物,近几年在黑龙江省播种面积逐年增加,马铃薯田块杂草危害普遍较重,该省绝大多数地区都采取封闭除草方式防除马铃薯田块杂草。 Potato is a high-yielding cash crop. In recent years, the sown area in Heilongjiang Province has been increasing year by year. The weeds in potato fields are generally more damaging. In most of the province, closed weed control measures are taken to control weeds in potato fields.