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Soil fertility refers to the ability of soil to sustain agricultural plant growth, i.e. to provide plant habitat and result in sustained and consistent yields of high quality. [3] It also refers to the soil's ability to supply plant/crop nutrients in the right quantities and qualities over a sustained period of time.
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.
It also deals with the microbiology of soil fertility, such as microbial degradation of organic matter and soil nutrient transformations. The primary goal of agricultural microbiology is to comprehensively explore the interactions between beneficial microorganisms like bacteria and fungi with crops. [ 1 ]
Centennial Campus is a research park and educational campus owned and operated by North Carolina State University in Raleigh, North Carolina, United States.Composed of two locations, the 1,334 acres (5.4 km 2) property provides office and lab space for corporate, governmental and not-for-profit entities, in addition to providing space for 75 university research centers, institutes ...
The approach of other soil labs also entering the soil health field is to add into common chemical nutrient testing a biological set of factors not normally included in routine soil testing. The best example is adding biological soil respiration ("CO 2 -Burst") as a test procedure; this has already been adapted to modern commercial labs in the ...
Produce 2 to 6 times more food at intermediate yields, assuming a reasonable level of farmer skill and soil fertility (which increase over time as the method is practiced) Produce a 100% increase in soil fertility. Reduce by 50% or more the amount of land required to grow a comparable amount of food.
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Cation-exchange capacity (CEC) is a measure of how many cations can be retained on soil particle surfaces. [1] Negative charges on the surfaces of soil particles bind positively-charged atoms or molecules (cations), but allow these to exchange with other positively charged particles in the surrounding soil water. [2]