Production factors. 1. managing the diary entries and details of key inputs such as seed varieties, fertilizer or chemical supplements with day, month, year, clearly.1.1 seed varieties. -Must be from a trusted source. -Must be a breeder or seed that is not toxic and can be consumed. -And if a mix or seed coating with hazardous products, used in method and follow the instructions on the label for which registration.Soil, fertilizer, and pesticides 1.2 adjust prung -Must have good management. In the use of chemical fertilizer and soil conditioner prung to prevent contamination of trace chemical and physical feature.
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