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The soil test value for a given nutrient does not give you the total amount of that nutrient in the soil; it instead provides an index of nutrient availability that is correlated with plant response. For the base cations (potassium, calcium, magnesium), the value represents the "exchangeable" form of the nutrient - the portion that is attached to clays and organic matter and available to move ...
Jun 6, 2024 · What Does a Soil Test Tell You? Test Results Explanation. Soil tests tell you the pH (acidity), percentage of organic matter, cation exchange capacity, and nutrient levels of your garden beds. Because soil is the foundation of your garden, tests are one of the most reliable insights into its health.
to raise the soiltest P level by 1 ppm (2lb/acre), and 8 lb K. 2. O/acre are neededto raise the soiltest K level by 1 ppm.Fertilizer and lime recom mendationsare also based on crop rotations,soil texture, plant variety andyield goal when appropriate. NutrientAvailabilityIndex. Theconcentrationsof soil nutrientsappear in the. Nutrient ...
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Dec 12, 2016 · Pay attention to the extractant used for your soil test. For example, the Olsen (or sodium bicarbonate) extraction is the OMAFRA-accredited test for phosphorus. OMAFRA fertilizer guidelines are based on the Olsen test. Be sure that you are not accidently confusing a Bray-1 P soil test result with an Olsen result.
The primary goal of soil testing is to inform efficient and effective resource management. Soil testing is the most accurate way to determine lime and nutrient needs. Soil testing is also useful for identifying contaminated sites (e.g., elevated levels of lead). The results provided on your soil test report reflect the properties of the sample you submitted and the testing procedures used by ...
Understanding the Soil Test Report Page 2 of 7 Soil Test Results pH The soil’s level of acidity, or pH, affects the availability of nutrients to the crop. • The pH scales ranges from 0 to 14, where 7 is neutral, below 7 is acidic, and above 7 is alkaline or basic. • Each whole unit (1.0) is a ten-fold difference in the level of acidity.
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soil (table 1). Soil test results (see figure 1) can be viewed in three categories: (1) low or yes, a fertilizer addition will likely increase growth and yield; (2) high or no, a fertilizer addition will not likely increase growth or yield; and (3) intermediate or maybe, a fertilizer addi-tion may increase growth or yield. Categorization of
