农抗120是我国研制的新农用抗菌素,是一种链霉菌的代谢产物。经化学组成测定,确定为碱性水溶性核甙类抗菌素。其主要组分的理化性质和化学结构与国内已有的农用抗菌素明显不同。农抗120的作用机制是直接阻碍病原菌蛋白质的合成,导致病原菌死亡,对瓜、菜、果、粮多种作物的真菌病害有明显的防 Nongkang 120 is a new agricultural antibiotic developed in China, which is a kind of metabolite of Streptomyces. The chemical composition determination, identified as alkaline water-soluble nucleoside antibiotics. Its main components of the physical and chemical properties and chemical structure of the existing domestic agricultural antibiotics significantly different. The mechanism of action of Nongkang 120 directly hinders the synthesis of pathogenic bacteria proteins, leading to the death of pathogenic bacteria and obvious prevention against fungal diseases of various crops such as melon, vegetable, fruit and grain