编辑同志：当前农资市场上出售的各种农药，在包装袋（瓶）上普遍没有酸性、碱性的注明，这给农民在生产中对症购药、用药造成了困难。在生产中，许多农民经常把几种农药混合在一起喷施，一次用药防病又灭虫，经济又省力。东港市长山镇农民隋传印的２０亩水稻得了穗颈瘟、... Editor: At present, all kinds of pesticides sold in the agricultural market are generally not labeled as acidic or alkaline in bags (bottles), which makes it difficult for farmers to symptomatically buy medicine and use medicines in their production. In the process of production, many peasants often spray several kinds of pesticides together, prevent and control pests once and for all while using them economically and economically. 20 mu of rice from Sui Chuan-yin, a farmer in Changshan Town, Donggang City, got panicle blast, ...