 Study of just rate of fertilizer application |  Cultivation of lettuce by degradable mulch |
 Control of soil rot of sweet potato by soil microbe |  Study of soil born disease using infested isolation field |
 The mammy card of Encarsia formosa: natural enemy of greenhouse whitefly |  Examination of virus by electron microscope |
 Study on diffusion of soil fungicide chloropicrin |  Pesticide residue analysis by gas chromatography |