Compared with Chemical Triadimefon,25%Amistar SC,2%Junkeduke AS,4% Agricultural Antibiotic 120AS were used to control Fritillaria ussuriensis Maximrusttest,respectively.

Agricultural antibiotic 120, Daconil and their mixtures, which were made by mixing up the two fungicides in different proportions, have been tested by mycelium growth to find out their inhibition and toxicities to Colletotrichum capsici in the laboratory.

In order to development new fungicide premix of agricultural antibiotic 120 and macozeb, its synergisticeffect and combination toxicity potential against Colletotrichum capsici was tested by mycelium hypha growth in thelaboratory.

The characteristics of a adulterated sample of diesel oil by 120# solvent naphtha were studied with three-dimension spectral subtraction fluorescence technique, and it is shown that the technique could determine quickly whether there is a adulterated sample of 120# solvent naphtha in diesel.

Having compared all separating ways,the authors made a proposal to refine n-heptane and reclaim methylcyclohexane from 120 solvent oil by using composite extraction separation.