在“农业学大寨”的群众运动推动下,1975年我们进行了防除甘蔗田杂草的多点试验,面积6.5亩。试验表明7431对多种一年和多年生杂草防除效果好。对恶性杂草双穗雀稗狗牙根效果突出,对甘蔗安全。贫下中农深有体会的说“7431好,能杀绊根草,省工、增产是良药”。 Driven by the masses’ movement in Dazhai Agricultural University, in 1975 we conducted a multi-point test to control weed in sugar cane fields with an area of ​​6.5 mu. Tests have shown that 7431 is effective against a wide range of annual and perennial weeds. Malignant weeping canary bermudagrass teeth root prominent, safe for sugarcane. Poor middle peasants have a deep experience that “7431 is good, can kill trip root grass, labor, increase production is good medicine.”