منابع مشابه
An Autonomous Weeding Robot for Organic Farming
The objective of this research is the replacement of hand weeding in organic farming by a device working autonomously at field level. The autonomous weeding robot was designed using a structured design approach, giving a good overview of the total design. A vehicle was developed with a diesel engine, hydraulic transmission, four-wheel drive and four-wheel steering. The available power and the s...
متن کاملWheat Growing and Quality in Organic Farming
Agricultural crop species represent a negligible part of the existing biodiversity. Over 50 percent of the daily global requirement of proteins and calories is met by just three crops – maize, wheat and rice (FAO, 1996) – and only 150 crops are commercialised on a significant global scale. On the other hand, ethnobotanic surveys indicate that, worldwide, more than 7,000 plant species are cultiv...
متن کاملTine after tine: a varied approach to the removal of a long-standing IVC filter
Inferior vena cava filters are important tools used to help prevent life-threatening pulmonary embolisms in hospitalized patients with contraindications to pharmacological prophylactic anticoagulation. This is a case report of a patient who had an inferior vena cava filter placed after a traumatic subdural hematoma. He made a complete recovery but was lost to follow-up until he presented 1825 d...
متن کاملTine testing in HIV positive patients.
BACKGROUND The incidence of tuberculosis is increased in HIV positive patients. Purified protein derivative (PPD, tuberculin) testing has not been performed routinely on patients infected with HIV in the UK and its usefulness in diagnosing tuberculosis in these patients is unclear. METHODS 198 HIV positive patients were Tine tested and a CD4+ lymphocyte count and chest radiograph were perform...
متن کاملOrganic Wheat Farming Improves Grain Zinc Concentration
Zinc (Zn) nutrition is of key relevance in India, as a large fraction of the population suffers from Zn malnutrition and many soils contain little plant available Zn. In this study we compared organic and conventional wheat cropping systems with respect to DTPA (diethylene triamine pentaacetic acid)-extractable Zn as a proxy for plant available Zn, yield, and grain Zn concentration. We analyzed...
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ژورنال
عنوان ژورنال: New Zealand Plant Protection
سال: 2004
ISSN: 1179-352X,1175-9003
DOI: 10.30843/nzpp.2004.57.6939