Khon Kaen, a Split plot experiment planning in RCB number 4 contains 4 main factors such as plough plough 3-1 over a variable time before planting a fresh pineapple grown in Tainan before to loosen fertilizer (A1), the plough, chisel plough 2 variables before planting, planting, fertilizer is fresh pineapple to loosen before County. Plough, chisel plough 1 variable before planting, planting, fertilizer is fresh pineapple to loosen before plough (A3) and the plough plough 3-1 over a variable time before planting, planting, fertilizer is fresh pineapple to loosen before plough (A4)
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