soil water monitoring Articles
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Evaluation of a Direct-Coupled TDR for Determination of 1 Soil Water Content and Bulk Electrical Conductivity
Signal degradation in coaxial cables and interconnects is a long-standing problem in the practical deployment of time domain reflectometry (TDR) for soil water monitoring. Acclima, Inc. has recently commercialized a TDR sensor (TDR-315) with all electronics required for waveform acquisition embedded in the probe head. We calibrated ten TDR-315 sensors and conventional TDR for apparent ...
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Performance of a new capacitance soil moisture probe in a sandy soil
Rapid population growth and increasing urban demand reduce the availability of water for agriculture in Florida. The water-holding capacity of sandy soils in the Central Florida Ridge area is very poor (<0.10 m3 m–3). Improved soil water monitoring probes can help growers manage irrigation more efficiently and conserve water. This study evaluated a new soil water probe (ECH2O EC-5 sensor, Decagon ...
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Evaluation of a Direct-Coupled TDR for Determination of Soil Water Content and Bulk Electrical Conductivity
Introduction Signal degradation in coaxial cables and interconnects is a long-standing problem in the practical deployment and calibration of time domain reflectometry (TDR) for soil water content monitoring. Acclima, Inc.1 has recently commercialized a TDR sensor (TDR-315) with all electronics required for waveform acquisition embedded in the probe head thereby avoiding signal degradation. Our ...
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Two Approaches for Optimizing Water Productivity
Agricultural Research Service researchers in Bushland, Texas, are helping farmers make the most of their water supplies in a region where they depend on the Ogallala Aquifer, a massive underground reservoir under constant threat of overuse. Steve Evett, Susan O'Shaughnessy, and their colleagues at the Conservation and Production Research Laboratory are developing and testing soil-water and ...
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Improved Agricultural Irrigation Scheduling Using a Soil Water Content Sensor - Case Study
Abstract The key to scheduling irrigation timing and amounts is determining moisture depletion in the soil. Two common methods include tracking crop evapotranspiration (ETc) and tracking the water content with a sensor buried in the soil. In Colorado, a popular online tool that estimates the ETc for a variety of well-irrigated crops is the Colorado Agricultural Meteorological Network (CoAgMet). ...
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Evaluation of three models that describe soil water retention curves from saturation to oven dryness
Measuring a soil water retention curve (SWRC) with the pressure plate device is generally limited to matric suctions 1500 kPa. A few models have been proposed to describe the SWRC from saturation to oven dryness using measurements in the pressure plate matric suction range. The development and validation of these models were mostly based on a limited set of published measurements, and in general, ...
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Extension of an existing model for soil water evaporation and redistribution under high water content conditions
Most crop, hydrology, and water quality models require the simulation of evaporation from the soil surface. A model developed by J.T. Ritchie in 1972 provides useful algorithms for estimating soil evaporation, but it does not calculate the soil water redistribution resulting from evaporation. A physically-based model using diffusion theory, described previously by Suleiman and Ritchie in 2003, ...
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Type of soil moisture sensor
Soil moisture sensor is an important tool in modern agriculture and horticulture. These devices measure the amount of water present in the soil, an important parameter in managing irrigation and ensuring that plants get the right amount of water.In this article, we will discuss the different types of soil moisture sensors, how they work, and their applications in agriculture and horticulture.Type ...
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Performance Evaluation of Selected Soil Moisture Sensors
Abstract Irrigation water management practices could greatly benefit from using soil moisture sensors that accurately measure soil water content or potential. Therefore, an assessment on soil moisture sensor reading accuracy is important. In this study, a performance evaluation of selected sensor calibration was performed considering factory- laboratory- and field-based calibrations. The selected ...
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The Accurate Way to Soil Moisture Sensing
Why Acclima soil moisture sensor technology is superior in terms of accuracy and cost Permittivity is a property of matter and is well characterized especially for materials that are electrically non-conductive. Water in its pure form is non-conductive. Permittivity quantifies the charge holding capacity for insulating materials. It is the ratio of stored electric charge to an applied electric ...
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Soil Water Sensors for Agriculture – Theory and Issues
Soil water sensors have been used for irrigation and water management in agriculture for many years, but with limited success in many cases. Nonetheless, the use of soil water sensors in increasing as water scarcity increases and, conversely, problems associated with over irrigation also increase. Common problems with soil water sensing included sensor failure, problems with wiring, lack of or ...
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Using Soil Water Sensors to Improve Irrigation Management
Abstract Irrigation water management has to do with the appropriate application of water to soils, in terms of amounts, rates, and timing to satisfy crop water demands while protecting the soil and water resources from degradation. In this regard, sensors can be used to monitor the soil water status; and some can be used to calculate irrigation amounts and to decide when to optimally irrigate. ...
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Multisensor Capacitance Probes for Simultaneously Monitoring Rice Field Soil-Water-Crop-Ambient Conditions
Abstract: Multisensor capacitance probes (MCPs) have traditionally been used for soil moisture monitoring and irrigation scheduling. This paper presents a new application of these probes, namely the simultaneous monitoring of ponded water level, soil moisture, and temperature profile, conditions which are particularly important for rice crops in temperate growing regions and for rice grown with ...
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Summer Irrigation Makes the Crop
Summer Irrigation Makes the Crop Summertime. At this point in the growing season, fruit for tree and vine crops has long been set. Now, the challenge is to bring as much of this yield potential to harvest, and at the desired quality. Irrigation management is crucial to achieve this goal. For most crops, irrigation should provide readily available soil moisture continuously so that fruit and ...
By Farm(x)
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Application of soil sensor for agriculture
Background: A moisture sensor that measures the current moisture content of the soil. Sensors into irrigation sensors help to help to facilitate more efficient distribution of water supplies. According to technical classification, soil sensors are divided into the following categories: Ground – installed below the ground to monitor the root zone; Aerial – Using drones to detect data, ...
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Chain - Agriculture in cooperation with nature - Case Study
Client Institute of Field and Vegetable Crops Croatian Agricultural Land Agency Financed by The European Union from the Fund for the Serbia-Croatia cross-border cooperation Countries Republic of Serbia and Republic of Croatia Background project The Danube region is a major international hydrological basin and ecological corridor. This requires a regional approach to nature ...
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The Role of Portable Soil EC Detectors in Enhancing Agricultural Productivity and Water Management
Agriculture is a crucial aspect of our global food supply chain, and proper soil management is essential for sustainable crop production. Portable soil EC detectors have become an invaluable tool for agricultural managers, providing them with real-time soil EC (electrical conductivity) readings that can help optimize crop growth and water management. In this article, we will explore the role of ...
By JXCT
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The Role of Soil Sensor Innovation in Modern Agriculture
Introduction: Modern agriculture is increasingly reliant on technology to improve efficiency, sustainability, and productivity. One key technological innovation that is revolutionizing the way farmers manage their land is soil sensor technology. Soil sensors provide real-time data on crucial soil parameters, enabling farmers to make informed decisions about irrigation, fertilization, and overall ...
By JXCT
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Climate change, a storm in the coffee cup
Coffee is the third most consumed beverage in the world after water and tea. Food and Agriculture Organization (FAO) confirms ‘Coffee is the most widely traded tropical product, with up to 25 million farming households globally accounting for 80 per cent of worlds output’. In 2020, 87% of the global coffee production originated from the top 10 biggest coffee-producing nations, says ...
By Farmsio Ltd.
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Zambia Fish Pond Liner–A New Force of African Tilapia Culture
Introduction Zambia is a country rich in natural resources. 40% of Zambia’s area is covered by freshwater, including the Kariba Reservoir located between Zambia and Zimbabwe, with a water capacity of 5,400 cubic kilometers, which is the most suitable for the development of aquaculture. Lake resources are one of Zambia’s advantages, and Zambia’s soybean industry is also very ...
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