Author : Pranee Rattananupong

Summary : The study was conducted to compare growth and seed production performance of corn (variety Nakhon sawan 1) and mungbean (variety Kampangsan 2) when monocropped or intercropped, and under various pest management system (no pest control, applied with botanicals or chemical pesticide) and fertilization regime (no fertilizer, organic fertilizer and inorganic fertilizer) for two seasons (wet and dry) at the Nakornsrithammarat Campus, Nakornsrithammarat, Thailand. The fertilizers used were poultry manure and inorganic fertilizer. The botanicals treatment was comprised of neem powder, garlic solution, and lemon grass and marigold grown around the experimental plots. The chemical pesticides used were alachlor herbicide, carbofuran and monocrotophos insecticides and quintozene fungicide. All the chemical pesticides used were based on Thailand's official recommendation for corn and mungbean production (DAE, 1993 a,b). All mungbean plots were inoculated with Rhizobium. Tillage was done during the first cropping (wet season) only. The treatments were combined in a 3x3x2 factorial, arranged in a split split plot in randomized complete block design (RCBD) with three replications. The pest management, fertilizer source and cropping pattern served as mainplot, subplot, and subplot, respectively.