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Soil Sample: Soil testing characteristics can vary considerably from one spot to another, even during a tiny garden or field. Taking samples everywhere within the field is crucial to induce the foremost correct measurement of nutrients and different organisms. An example of this is often along gravel roads where the soil might have more lime from the mud from the roads settling down in the soil, or an previous animal feedlot where phosphorus and nitrogen counts can be on top of the rest of the sector. บริษัทเจาะสำรวจดิน There are various strategies to collect the soil sample within the field, around 40 acres of land it's advisable to require a soil teat with the sample at least in twenty completely different areas in order that the average value of fertility in the land may be found.