Keep soil samples using the drill land (Hand Auger), a depth 3-level 1 land on the floor store a depth 0 - 30 cm layer of soil 2 middle-class store at depths of 30 - 60 cm.and the 3rd floor storage below ground level to a depth 60 - 100 cm. To take possession of the soil in each analysis to floor level and lead to evaluate the fertility of the soil, the soil analysis.
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