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Microwave Based Weed Control and Soil Treatment

Authors: --- --- --- --- et al.
ISBN: 9783110605570 Year: Pages: 185 DOI: 10.1515/9783110605570 Language: English
Publisher: De Gruyter
Subject: Agriculture (General) --- General and Civil Engineering
Added to DOAB on : 2018-11-14 18:42:56
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Herbicide resistance has become an important constraint on modern agricultural practices. An alarming increase in weed biotypes that are resistant to herbicides has also been reported. Opportunity exists for a novel weed management technology, which is also compatible with no-till agricultural practices. Microwave heating can kill both emerged weed plants and weed seeds in the soil. When the intensity of the microwave fields is moderate, plants, which have already emerged, are susceptible to microwave treatment. If the microwave field is intense enough, very rapid volumetric heating and some thermal runaway in the plant structures cause micro-steam explosions in the plant cells, which rupture the plant structures, leading to death. Soil treatment requires significantly more energy however, there are secondary benefits for crops growing in microwave treated soil. These include: significant reduction of the dormant weed seed bank significant reduction of nematode populations significant reduction of fungal populations better availability of indigenous nitrogen for the plants more rapid humification and significant increases in crop growth and yield. Microwave weed management and soil treatment is not restricted by weather conditions therefore, the technology may offer some timeliness and environmental benefits, which are yet to be quantified in a cropping system.

Emerging Microwave Technologies in Industrial, Agricultural, Medical and Food Processing

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ISBN: 9781789234084 9781789234091 Year: Pages: 214 DOI: 10.5772/intechopen.69578 Language: English
Publisher: IntechOpen
Subject: General and Civil Engineering
Added to DOAB on : 2019-10-03 07:51:51

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Recently, the rapid development of microwave technologies has had a significant impact on current industrial, agricultural, medical, and food processing fields. This book is a self-contained collection of valuable scholarly papers related to the microwave applications. This book contains 10 chapters that cover several subtopics of the microwave engineering, namely, microwave system design models, emerging microwave devices, and microwave heating/drying technologies. Hence, this book should be useful to the academics, scientists, practicing researchers, and postgraduate students whose works are related to microwave technologies.

RF Probe-Induced On-Wafer Measurement Errors in the Millimeter-Wave Frequency Range

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783731508229 Year: Volume: 89 Pages: XII, 180 p. DOI: 10.5445/KSP/1000084392 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-28 18:37:01
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Measurement at millimeter-wave frequencies are prone to parasitic effects which distort the overall results. Especially the use of RF probes introduces unknown distortions, even after the measurement setup is calibrated. This works investigates these distortions based on electromagnetic field simulations of integrated circuits in conjunction with models of the used RF probes. This allows to comprehend the observed distortions and successfully resolve the root of the distortions.

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