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SOIL TESTING CONVENTIONS IN THE U.S. Soil testing is far from a uniform practice across the United States. Soil fertility testing is really the combination of three discrete but interrelated processes: analysis, interpretation, and recommendation (Eckert,1987). Many differences in these three
soil testing is an important element in nutrient management. You can use soil tests as a diagnostic tool or to identify trends through time. To obtain meaningful test results, you must sample soil correctly, at the same time each year, and you must maintain records.
The soil analysis (testing) methods described in this laboratory guide are the more commonly used methods applicable to most soil types. To assist manual users, interpretation data for analysis results are given for each method.
Soil and plant testing is considered to be the most effective and reliable tool to assess plant nutrient demand in-situ or on-site. The practices of site-specific nutrient management, best fertilizers management practices, 4R nutrient stewardship, nutrient expert based recommendations etc. are based on testing/analysis of soil and plant parts.
The first, the Basic Soil test, includes components of significance across all applications: pH. Phosphorus. The Cations: Calcium, Potassium, Magnesium and Sodium. Cation Exchange Capacity and Base Saturation. Volume Weight. The Basic Test can be supplemented by additional tests where extra information is required.
APALs soil test interpretation guide summarises the Lab methods undertaken and also provides a general interpretation guide. APALs tests and interpretation is based on up to date research and literature for Australian soils, promoting best industry practice.
Reliable soil analysis and proper interpretation of the results can only occur when appropriate soil sampling practices are used. This step-by-step field guide is a summary of best practices and recommendations for composite soil sampling. 1. Plan on where to sample.
