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Proposing an Appropriate Soil Water Content Estimation Technique for Iran CIGR Journal
Karimi, Hadi; Ghassemzadeh, Hamid Reza; Pashaee, Payam; Zarei Shahamat, Ebrahim.
Limitation of water resources is one of the major factors in the agricultural development of Iran. In recent years. Iran suffers from increases water consumption and drought conditions, This is why efficient water management in agriculture production becomes an inevitable requirement. One of the main aspects of water management in agriculture production is operating any type of irrigation system efficiently. A good on-farm irrigation water management requires a routine monitoring of soil water content (SWC). Recently a substantial number of different experimental methods in categories of direct, indirect, ground based and remote sensing have been developed to determine the SWC, and a large body of knowledge is now available on theory and applications. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Iran; Water management; Soil water content; Water estimation technique.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3054
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An approach to compensation of dust effects on seed flow sensors CIGR Journal
Navid, Hosein; Fathipour, Amir; Karimi, Hadi; Ghaffarnezhad, Ali; Wang, Ning.
Optical seed mass flow sensors are widely used on seed drills and planters. An important challenge in these sensors is their malfunction in a dusty condition. Dust caused by soil and seeds may sit on the light elements and disrupt its function. In this study, an approach was developed to compensate this effect. A non-contact intelligent system with infrared diodes and a microcontroller with ARM architecture was built up to monitor the seed flow in the delivery tube of seed drills. At the hardware phase, a glass with a different radius of curvature was installed in front of the elements. The semi-cylindrical glass placement in front of the optical elements meant that the arrangement was sealed against dust. Besides, the fall of the seeds tangential to the...
Tipo: Info:eu-repo/semantics/article
Ano: 2023 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/8325
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