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2. Soil pH - Wikipedia

   en.wikipedia.org/wiki/Soil_pH

   Soil pH is a key characteristic that can be used to make informative analysis both qualitative and quantitatively regarding soil characteristics. [ 1 ] pH is defined as the negative logarithm (base 10) of the activity of hydronium ions (H+ or, more precisely, H3O+aq) in a solution.

3. Soil moisture sensor - Wikipedia

   en.wikipedia.org/wiki/Soil_moisture_sensor

   A simple soil moisture sensor for gardeners. Soil moisture sensors measure the volumetric water content in soil. [1] Since the direct gravimetric measurement of free soil moisture requires removing, drying, and weighing of a sample, soil moisture sensors measure the volumetric water content indirectly by using some other property of the soil, such as electrical resistance, dielectric constant ...

4. Soil moisture - Wikipedia

   en.wikipedia.org/wiki/Soil_moisture

   Soil moisture. Soil moisture is the water content of the soil. It can be expressed in terms of volume or weight. Soil moisture measurement can be based on in situ probes (e.g., capacitance probes, neutron probes) or remote sensing methods. [1][2] Water that enters a field is removed from a field by runoff, drainage, evaporation or transpiration ...

5. Your Herb Garden Needs Special Care in Winter—These ... - AOL

   www.aol.com/herb-garden-needs-special-care...

   "A proper soil test is worth its weight in gold," he says. "Macro and micro mineral ratios, organic matter content, and pH levels are of paramount importance. By balancing your soil now, plants ...

6. When to Plant Dahlias for the Most Beautiful Blooms ... - AOL

   www.aol.com/plant-dahlias-most-beautiful-blooms...

   Dahlias thrive in full sunlight and well-drained soil with an almost neutral PH of 6.6 to 7. ... with too much moisture,” says Mary Turner, master gardener and owner of Salt Farm Flowers ...

7. Soil test - Wikipedia

   en.wikipedia.org/wiki/Soil_test

   A soil test is a laboratory or in-situ analysis to determine the chemical, physical or biological characteristics of a soil. Possibly the most widely conducted soil tests are those performed to estimate the plant-available concentrations of nutrients in order to provide fertilizer recommendations in agriculture.