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水稻旱种田间杂草发生比较严重,稻农使用除草剂通常采用喷雾或撒毒土的方法。但多因土壤湿度差,施药不匀,造成杂草严重而减产。轻者减产1——2成,重者一半以上。几年来我们成功地试验了“水药同步”除草技术,1986年全县多点示范1700余亩,均达到了较理想的效果。一、操作技术水药同步除草法是利用一些除草剂在水中迅速扩散的道理,于灌蒙头水或稗草、牛筋草三叶期前灌水时,把除草剂兑入流水,使水、药同步进入田间杀死杂草。
Weeds in rice dry farming more serious, rice farmers use herbicides usually spray or sprinkle toxic soil method. However, due to poor soil moisture, uneven application, resulting in serious weeds and cut. Light production cuts 1-2%, more than half of heavy. Over the past few years we successfully tested the “water medicine synchronization” weeding technology, more than 1,700 acres of demonstrative demonstration in the county in 1986, have reached a more satisfactory results. First, the operating technology Synchronized weeding law is the use of some herbicides in the rapid diffusion of water truth, irrigation in the head of water or barnyard grass, tendon three-leaf period irrigation, the herbicide into the water, so that water, The medicine enters the field to kill the weeds simultaneously.