Augmentation of agricultural output using Farm Ambience Sensing Tool (FAST)
01 Jun 2014-pp 1-3
TL;DR: A viable solution is the FAST (Farm Ambience Sensing Tool) - a multi-sensor tool which detects the conditions of the agricultural area and notifies the farmer.
Abstract: One of the major problems in present day agriculture is low productivity. To improve the output of the field, it is of utmost importance that the farmer not only has the items required but also the knowledge to implement them effectively. A viable solution is the FAST (Farm Ambience Sensing Tool) - a multi-sensor tool which detects the conditions of the agricultural area and notifies the farmer.
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TL;DR: It is proposed that on-the-go vehicle-based sensing systems have potential for efficiently and rapidly characterizing variability of soil macronutrients within a field.
Abstract: Accurate measurements of soil macronutrients (i.e., nitrogen, phosphorus, and potassium) are needed for efficient agricultural production, including site-specific crop management (SSCM), where fertilizer nutrient application rates are adjusted spatially based on local requirements. Rapid, non-destructive quantification of soil properties, including nutrient levels, has been possible with optical diffuse reflectance sensing. Another approach, electrochemical sensing based on ion-selective electrodes or ion-selective field effect transistors, has been recognized as useful in real-time analysis because of its simplicity, portability, rapid response, and ability to directly measure the analyte with a wide range of sensitivity. Current sensor developments and related technologies that are applicable to the measurement of soil macronutrients for SSCM are comprehensively reviewed. Examples of optical and electrochemical sensors applied in soil analyses are given, while advantages and obstacles to their adoption are discussed. It is proposed that on-the-go vehicle-based sensing systems have potential for efficiently and rapidly characterizing variability of soil macronutrients within a field.
141 citations
01 Jan 2010
TL;DR: In this article, a multi-ion measuring system (MIMS) for proximal sensing of soil nitrate, potassium and sodium using ion selective electrodes (ISEs) is presented.
Abstract: This paper outlines the laboratory experimentation and development of a multi-ion measuring system (MIMS) for proximal sensing of soil nitrate, potassium and sodium using Ion Selective Electrodes (ISEs). We present work conducted for characterising ion exchange reactions using multiple ISEs and a universal extracting solution. The use of ion exchange kinetics and prediction models for rapid estimation of soil extractable nutrient concentration was evaluated. Using these techniques the prototype laboratory and field portable MIMS was developed to provide rapid in-field soil nutrient analysis in less than 30 seconds. The system automates the measurement process including ISE calibration, temperature compensation, and soil analysis with nutrient estimation. Finally we describe the hardware and the performance of the MIMS under laboratory and field conditions.
7 citations