4.1 quality of crops grown ratings directly according to the standard of the market. Due to its value for its plant genetic variance is high. Grain crop or its ratings quality or quality ตำทํ reflects the characteristics of large output ratings ratings directly as market, Ta needs.
.Its 4.2 knowledge on its academic works of producers or farmers also ratings enough. SPL management its ratings in 2005, according to the good production system
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