Search Results - "ONCE"

Machine vision for precise control of weeds by Blasco, José, Benlloch, J. V., Agustí, Manuel, Moltó, Enrique

“…Then, growing techniques are applied to discriminate between vegetation and background. Once plant pixels are identified, weeds are distinguished from the crop by estimating the position of the row and employing shape analysis techniques. …”
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Economic injury levels for Asian citrus psyllid control in process oranges from mature trees with high incidence of huanglongbing by Monzó, César, Stansly, Philip A.

“…While this approach slows spread and also decreases severity of HLB once the disease is established, economic viability of increasingly frequent sprays is uncertain. …”
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General guidelines for statistically sound and risk-based surveys of plant pests by Lázaro, Elena, Parnell, Stephen, Vicent, Antonio, Schans, Jan, Schenk, Martijn, Cortinas-Abrahantes, Jose, Zancanaro, Gabriele, Vos, Sybren

“…The survey design is flexible and can be tailored to each pest and specific situation in the Member States. Once the survey is implemented following this approach, the conclusions allow surveys to be compared across time and space, contributing to the harmonisation of surveillance activities across the EU Member States.…”
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Structural heterogeneity of wildflower strips enhances fructose feeding in parasitoids by Mockford, Alice, Westbury, Duncan B., Ashbrook, Kate, Urbaneja, Alberto, Tena, Alejandro

“…Using orange orchards as a model system, three experimental alleyway management treatments were investigated: a control treatment where naturally occurring vegetation in the alleyways between rows of trees was managed under standard farm practice; a standard management wildflower treatment in which sown wildflower strips in alleyways were managed by cutting once a year; and an active management wildflower treatment, in which the wildflower strips in alleyways was managed by cutting three times a year. …”
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Preliminary evaluation of pomegranate peel extracts for the control of Rhizopus rot of stone fruits by Taberner, Verónica, Pérez-Gago, María B., Palou, Lluís

“…For this, each fruit was artificially inoculated once in a peel wound with a spore suspension of R. stolonifer and, 2 h later (assessment of curative activity), 30 μL of PPE were applied in the same wound with a micropipette. …”
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Comportamiento reproductivo de la polilla guatemalteca de la papa Tecia Solanivora (Lepidoptera: Gelichidae) by Rincón Rueda, Diego Fernando, García González, Javier

“…Fue introducida accidentalmente al pais a mediados de los ems 80 y en cerca de once arios logro dispersarse por las zonas productoras de papa causando perdidas econ6micas anuales superiores al 20%, en los departamentos de Norte de Santander, Boyacá, Cundinamarca, Antioquia y Nariño (Arias 1996, Herrera 1998).…”
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Evaluación de híbridos experimentales de maíz para la costa Atlántica colombiana. by Navas Arboleda, A.A., Mejia, S., Ospina, J.G., Urrea, R.

“…Para determinar el potencial de rendimiento y estabilidad fenotipica se evaluaron cuatro híbridos experimentales sencillos (HE) y siete testigos comerciales de maíz en once localidades (L), durante 1995 y 1996. El diseño experimental utilizado fue de bloques completos al azar con cuatro repeticiones con parcelas de cuatro surcos de cino m de longitud, distanciados a 0.90 m entre surcos y 0.45 entre golpes (49 383 plts/ha). …”
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Carbón balance of PGR-IV-treated cotton plants by Cadena Torres, Jorge

“…Cotton (Gossypium hirsutum L.) is a plant of tropical origin that is planted throughout the world for fiber production. Once planted it may be subjected to several environmental constraints like water stress, low and high temperatures, and nutrient shortage, conditions under which growth is affected and final yield reduced. …”
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Caracterización de café cereza empleando técnicas de visión artificial by Sandoval Niño, Zulma LilianaPrieto Ortiz, Flavio Augusto

“…Se desarrolló un sistema de visión artificial para la clasificación de frutos de café en once categorías dependiendo de su estado de madurez. …”
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Variables que influyen en la aplicación de la agricultura de precisión en Colombia: revisión de estudios by Pérez Ortega, Diego Javier, Bolaños Alomia, Fabio Andrés, da Silva, Alexandre Marco

“…Como resultado de estos filtros, se seleccionaron once artículos para analizarlos, lo cual permitió identificar contextos de análisis de aplicaciones de tecnologías de AP en Colombia. …”
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La orientación de las investigaciones de silvicultura para Latinoamérica by Wadsworth, F.H.

“…Using the favorable environment created by a high although useless, canopy, underplanting with some highly valuable species may be another alternative. Once the objective of producing well spaced stands of high quality timbers species is attained, research can move towards other goals such as investigating relationships between different sites, species and intensity of practices (including fertilization). …”
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Los agroecosistemas cafetaleros modernos y su relación con la conservación de mariposas en paisajes fragmentados by Pérez García, Oscar, Benjamin, Tamara J., Tobar López, Diego

“…All sites were sampled once a month from May to July 2007. We obtained 4.5 hours of sampling/ site, and 27 hours of sampling/habitat. …”
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Sobrevivencia y crecimiento de maderables en plantaciones lineales en Talamanca, Costa Rica y Changuinola, Panamá by Somarriba, Eduardo, Kapp, Gerald, Beer, John, Bonnemann, Arnim, López Sampson, Arlene

“…Doce especies fueron estudiadas en líneas monoespecíficas con dos a cuatro especies por sitio en once sitios. Las especies evaluadas fueron Acacia mangium, Bombacopsis quinata, Carapa guianensis, Cordia alliodora, Eucalyptus deglupta, Tabebuia rosea, Terminalia ivorensis, Tectona grandis, Pterocarpus macrocarpus, Swietenia macrophylla, Vochysia ferruginea y Vochysia hondurensis. …”
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Hur påverkar skogsägares beslut skogens värden? by Backman, Filip

Akrylamid : skillnader i upptag, metabolism och utsöndring mellan gnagare och människa by Petersen, Daniel

“…Consequently, the compound is currently regarded as a potential carcinogen in hu-mans. Once in the body, AM may be transformed into the genotoxic compound glycidamide (GA). …”

Restoration strategies in boreal forests by Espinosa Del Alba, Clara

“…Data was collected in three occasions: once prior to restoration (2010) and twice post restoration; one year after (2012) and eight years after (2019). …”
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Skötselplan och ekologi för tre rödlistade kärlväxter på SLU:s mark, Ultuna by Bergström, Linnéa

X-ray imaging of water flow through soil by Garbari, Lorenzo

“…The experiments were conducted on three different kinds of soil samples: a bare mixture of soil and peat (50/50 by volume), a planted mixture of soil and peat (50/50 by volume) and garden soil samples that once collected and prepared where buried underground for four weeks. …”
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The effects of historical land use on plant diversity in semi-natural grasslands by Kumlander, Elisabeth

“…The meadows and semi-natural grasslands that once played a central role in the agricultural landscape have been reduced with up to 95%. …”

Förröjning i förstagalling - vad kostar det och följer utförarna instruktionerna? by Eriksson, Anders, Lindberg, Anders

“…If cleaning has been made once or twice earlier in the stand, the contractor`s job is easier since selection of main stems is already done. …”
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