牙齿草又称眼子菜、水案板、水上漂、檀木叶等,是云南省稻田的主要恶性杂草.牙齿草的繁殖力强,鳞基在土中串得很深,草害重的田用人工薅除一次,每亩需工30个以上,还很难薅净.由于牙齿草叶片覆盖面积大,根系深,既与水稻争肥,又降低水田温度,严重影响水稻正常生长,一般重草田因草害可使水稻每亩减产100斤以上。 Teeth grass, also known as eye dish, water plank, floating on water, sandalwood leaves, is the main malignant weed in Yunnan rice fields. Teeth grass reproductive ability, squamous base in the soil string deep, grass heavy weight Field artificial removal once, more than 30 per acre need to work, it is very difficult to clean the net.Because the tooth grass leaf area, root deep, not only with rice fight fat, but also reduce the temperature of paddy field, seriously affecting the normal growth of rice, the general Heavy grass because of grass can make rice yield per mu more than 100 pounds.