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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 ...
A hygrometer is an instrument which measures the humidity of air or some other gas: that is, how much of it is water vapor. [1] Humidity measurement instruments usually rely on measurements of some other quantities, such as temperature, pressure, mass, and mechanical or electrical changes in a substance as moisture is absorbed.
Capacitance hygrometers are not affected by most volatile chemicals and can be much smaller than other alternative sensors. They do not require cleaning, but are less accurate than dew point hygrometers (+/- 0.015 a w). They should have regular calibration checks and can be affected by residual water in the polymer membrane (hysteresis).
It forms part of a standard weather station and holds instruments that may include thermometers (ordinary, maximum/minimum), a hygrometer, a psychrometer, a dewcell, a barometer, and a thermograph. Stevenson screens may also be known as a cotton region shelter, an instrument shelter, a thermometer shelter, a thermoscreen, or a thermometer screen.
Global Open Data for Agriculture and Nutrition (GODAN) is an initiative that seeks to "support global efforts to make agricultural and nutritionally relevant data available, accessible, and usable for unrestricted use worldwide. The initiative focuses on building high-level policy as well as public and private institutional support for open ...
This data is submitted through use of software, a personal computer, and internet connection (or amateur radio) and are utilized by groups such as the National Weather Service (NWS) when generating forecast models. Each weather station submitting data to CWOP will also have an individual Web page that depicts the data submitted by that station.
African Journal of Range & Forage Science; Agricultural and Forest Meteorology; Agricultural Economics (journal) Agriculture, Ecosystems & Environment; Agroecology and Sustainable Food Systems; Agronomy for Sustainable Development; Agronomy Journal; American Journal of Enology and Viticulture; Annual Review of Phytopathology; Aquaculture (journal)
The Journal of Central European Agriculture (JCEA) is an Open access peer-reviewed scientific journal founded in 1999 by three faculties from Croatia, Hungary and Slovakia. [ 1 ] [ 2 ] Today, JCEA is a product of cooperation from nine central European member countries.