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一、土壤样品采集土壤样品采集应具有代表性,并根据不同分析项目采用相应的采样和处理方法。1、采样单元采样前要详细了解采样地区的土壤类型、肥力等级和地形等因素,将测土配方施肥区域划分为若干个采样单元,每个采样单元的土壤要尽可能
First, soil sample collection Soil sample collection should be representative, and according to different analysis projects using the appropriate sampling and processing methods. 1, Sampling unit Before sampling to understand the sampling area of soil types, fertility levels and topography and other factors, the soil testing and fertilization area is divided into a number of sampling unit, the soil of each sampling unit should be as possible