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In this vein, a soil test is like a blood test for the soil. Soil tests can be used for four purposes: maintaining proper soil fertility; guiding plant selection; diagnosing plant health issues ...
A soil test can determine fertility, or the expected growth potential of the soil which indicates nutrient deficiencies, potential toxicities from excessive fertility and inhibitions from the presence of non-essential trace minerals. The test is used to mimic the function of roots to assimilate minerals. The expected rate of growth is modeled ...
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The soil tests we offer test both the main macro and micronutrients. These nutrients include phosphorus, exchangeable potassium, calcium, magnesium and more. The tests also include soil pH ...
History of soil science. The early concepts of soil were based on ideas developed by a German chemist, Justus von Liebig (1803–1873), and modified and refined by agricultural scientists who worked on samples of soil in laboratories, greenhouses, and on small field plots. The soils were rarely examined below the depth of normal tillage.
There are three major sub-types, two of which have two further sub-types each. Calcimorphic or calcareous soils develop from a limestone. It has two sub-types: Rendzina soils are thin soils with limited available water capacity. Terra rossa soils are deep red soils associated with higher rainfall than rendzina.
Infiltrometer. An infiltrometer is a device used to measure the rate of water infiltration into soil or other porous media. [1] Commonly used infiltrometers are single-ring and double-ring infiltrometers, disc permeameters, and falling head infiltrometers.
Plant tissue test. The nutrient content of a plant can be assessed by testing a sample of tissue from that plant. These tests are important in agriculture since fertilizer application can be fine-tuned if the plants nutrient status is known. Nitrogen most commonly limits plant growth and is the most managed nutrient.