Search results
Results from the WOW.Com Content Network
For premium support please call: 800-290-4726 more ways to reach us
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.
The tests also include soil pH, organic matter and cation exchange capacity. Each test includes nutrient application recommendations for the targeted crop or plant species based on the sample results.
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 ...
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.
Soil aeration maintains oxygen levels in the plants' root zone, needed for microbial and root respiration, and important to plant growth.Additionally, oxygen levels regulate soil temperatures and play a role in some chemical processes that support the oxidation of elements like Mn 2+ and Fe 2+ that can be toxic.
When the organic component of a soil is substantial, the soil is called organic soil rather than mineral soil. A soil is called organic if: Mineral fraction is 0% clay and organic matter is 20% or more; Mineral fraction is 0% to 50% clay and organic matter is between 20% and 30%; Mineral fraction is 50% or more clay and organic matter 30% or ...
ions from the root. Some plants also exude organic acids into the soil to acidify the zone around their roots to help solubilize metal nutrients that are insoluble at neutral pH, such as iron (Fe). Fertilizer use: Ammonium (NH + 4) fertilizers react in the soil by the process of nitrification to form nitrate (NO − 3), and in the process ...