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2. Base-cation saturation ratio - Wikipedia

   en.wikipedia.org/wiki/Base-cation_saturation_ratio

   Base-cation saturation ratio (BCSR) is a method of interpreting soil test results that is widely used in sustainable agriculture, supported by the National Sustainable Agriculture Information Service (ATTRA) [1] and claimed to be successfully in use on over a million acres (4,000 km 2) of farmland worldwide.

3. Calcium deficiency (plant disorder) - Wikipedia

   en.wikipedia.org/wiki/Calcium_deficiency_(plant...

   Soil pH should be tested, and corrected if needed, because calcium deficiency is often associated with low pH. [14] [15] [citation needed] [16] Early fruit will generally have the worst symptoms, with them typically lessening as the season progresses. Preventative measures, such as irrigating prior to especially high temperatures and stable ...

4. Soil pH - Wikipedia

   en.wikipedia.org/wiki/Soil_pH

   Then, using the initial soil pH and the aluminium content, the amount of lime needed to raise the pH to a desired level can be calculated. [68] Amendments other than agricultural lime that can be used to increase the pH of soil include wood ash, industrial calcium oxide , magnesium oxide, basic slag (calcium silicate), and oyster shells.

5. The Best Soil Test Kits Will Help You Grow Your Perfect Garden

   www.aol.com/lifestyle/best-soil-test-kits-help...

   Take the guesswork out of gardening this year and find out exactly what your soil needs to grow beautiful plants and healthy produce.

6. Soil test - Wikipedia

   en.wikipedia.org/wiki/Soil_test

   In agriculture, a soil test commonly refers to the analysis of a soil sample to determine nutrient content, composition, and other characteristics such as the acidity or pH level. A soil test can determine fertility , or the expected growth potential of the soil which indicates nutrient deficiencies, potential toxicities from excessive ...

7. Plant nutrients in soil - Wikipedia

   en.wikipedia.org/wiki/Plant_nutrients_in_soil

   Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...

8. Plant nutrition - Wikipedia

   en.wikipedia.org/wiki/Plant_nutrition

   When soil-potassium levels are high, plants take up more potassium than needed for healthy growth. The term luxury consumption has been applied to this. Potassium intake increases with root temperature and depresses calcium uptake. [47] Calcium to boron ratio must be maintained in a narrow range for normal plant growth.

9. Agricultural lime - Wikipedia

   en.wikipedia.org/wiki/Agricultural_lime

   The best way to determine if the soil is acidic or deficient in calcium or magnesium is with a soil test which a university can provide with an agricultural education department for under $30.00 for United States residents. [8] Farmers typically become interested in soil testing when they notice a decrease in crop response to applied fertilizer.