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2. 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.

3. For healthy plants, test your garden's soil for pH level - AOL

   www.aol.com/lifestyle/healthy-plants-test...

   Every plant requires a specific soil pH range within which it can best absorb essential nutrients. Because the optimal range is different for every plant, gardeners should learn the pH ...

4. 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 ...

5. SESL Australia - Wikipedia

   en.wikipedia.org/wiki/SESL_Australia

   SESL provides independent laboratory testing and advisory services to landscape, horticulture, sport and leisure turf, [1] civil construction, environment, [2] government, [3] [4] mining and the waste industry. It offers sample collection, monitoring, analysis and interpretation of soil, water, plant tissue and wastes.

6. Iron deficiency (plant disorder) - Wikipedia

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

   Iron deficiency can be avoided by choosing appropriate soil for the growing conditions (e.g., avoid growing acid loving plants on lime soils), or by adding well-rotted manure or compost. If iron deficit chlorosis is suspected then check the pH of the soil with an appropriate test kit or instrument. Take a soil sample at surface and at depth.

7. Plant root exudates - Wikipedia

   en.wikipedia.org/wiki/Plant_root_exudates

   The rhizosphere is the thin area of soil immediately surrounding the root system. It is a densely populated area in which the roots compete with invading root systems of neighboring plant species for space, water, and mineral nutrients as well as form positive and negative relationships with soil-borne microorganisms such as bacteria, fungi and insects.

8. Ohio Agricultural Research and Development Center - Wikipedia

   en.wikipedia.org/wiki/Ohio_Agricultural_Research...

   The OARDC has pioneered research in aerial pesticide application, round hay bales, new apple cultivars, Phytophthora sojae oomycete in soybeans, removal of lead contamination in soil, and hundreds of other projects. The center provides information for farmers and an education for graduate students, and also deals with consumer-friendly products ...

9. Raunkiær plant life-form - Wikipedia

   en.wikipedia.org/wiki/Raunkiær_plant_life-form

   These plants have buds at or near the soil surface, e.g. common daisy and dandelion, and are divided into: Protohemicryptophytes: only cauline foliage; Partial rosette plants: both cauline and basal rosette foliage; and; Rosette plants: only basal rosette foliage.