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随着“五四○六”抗生菌肥广泛应用后,各生产单位常常碰到各种各样的菌种退化、衰变现象,而影响推广应用效果。近年来,虽做了大量的稀释提纯工作,但仍不能持久,也难以开展群众性的提纯运动。为此,我们在毛主席“艰苦奋斗”的光辉思想指引下,试验了用紫外线诱变育种——固体平皿法。它比过去的磁力震荡孢子悬液法节省了很多诱变材料与工具,减少了不少繁琐的手续。现简介于下:
With the “5460” antibacterial fertilizer widely used, the production units often encounter a variety of strains degradation, decay phenomenon, which affects the promotion of application results. In recent years, although a lot of dilution and purification work done, but still can not be sustained, it is difficult to carry out mass purification campaign. For this reason, under the guidance of Chairman Mao’s “glorious struggle”, we experimented with UV mutagenesis - solid plate method. It saves a lot of mutagenic materials and tools than the previous magnetic concussion spore suspension method, reducing a lot of tedious procedures. Now briefly below: