甜菜宁是杀伤叶子的除莠剂,仅对刚出土的杂草有效。因此,应在杂草一长出来就喷撒。用甜菜宁在高温和强光下喷用,可以获得较好的效果。然而也增加了损害甜菜的危险。因此,在温暖时期,喷撒应在傍晚温度已下降时进行,这样能使得甜菜在晚上可以得到恢复。甜菜宁对大部分一年 Beet is rather a herbicide that kills leaves and is effective only on freshly weeds. Therefore, weeds should be sprayed when weeds grow. Beet with rather high temperature and light spray, you can get better results. However, it also increases the risk of damage to beets. Therefore, in warm weather, spraying should be done when the temperature in the evening has dropped, thus allowing the beet to recover in the evening. Beet mainly for most of the year