The Experts below are selected from a list of 321 Experts worldwide ranked by ideXlab platform
Richard Austin - One of the best experts on this subject based on the ideXlab platform.
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Rural skills training course - Pesticide Application Tractor Mounted PA2
2016Co-Authors: Richard AustinAbstract:rural skills, skills, training course, training, Pesticides, Pesticide Application, tractor, PA2
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Rural skills training course - Pesticide Application hand held PA6
2016Co-Authors: Richard AustinAbstract:rural skills, training course, training, skills, Pesticides, Pesticide Application, PA6, commoning, commoner
M. Guerra - One of the best experts on this subject based on the ideXlab platform.
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Effect of sowing techniques and seed Pesticide Application on dry bean yield and harvest components
Field Crops Research, 2006Co-Authors: J. B. Valenciano, Pedro A. Casquero, J. A. Boto, M. GuerraAbstract:Abstract Common bean, Phaseolus vulgaris L., is widely cropped by small farmers in the northwest of Spain. The emergence and establishment of common beans are affected by insects, soil fungi and crust formation. The objective of this study was to determine if seed Pesticide Application and sowing techniques improve bean yield. This work was carried out during 1998 and 1999 in the province of Leon, Spain. A split-split-plot design with three replications was used. The main plot was bean cultivar (“Rinon de Leon” and “Canela”), the subplot was the Application system of Pesticides (untreated, treatment on seed before sowing and treatment on seed during sowing) and the sub-subplot was the sowing technique (sowing in raised beds, sowing on the flat without adding substrate, sowing on the flat adding sawdust and sowing on the flat adding vermiculite). The plant population density at harvest and yield was improved by Pesticide Application and by addition of substrate in the seed row. Yield increase was caused by a higher plant population density at harvest. The sowing techniques had a greater influence on plant population density at harvest and bean yield than the Pesticide treatment carried out for its protection. Seed Pesticide Application improved number of pods per plant and 1000-seed weight.
Brian Fulfrost - One of the best experts on this subject based on the ideXlab platform.
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Spatial relationships between water quality and Pesticide Application rates in agricultural watersheds.
Environmental Monitoring and Assessment, 2006Co-Authors: John W. Hunt, Brian S. Anderson, Bryn M. Phillips, Ronald S. Tjeerdema, Nancy Richard, Val Connor, Karen Worcester, Mark Angelo, Amanda Bern, Brian FulfrostAbstract:Pesticide Applications to agricultural lands in California, USA, are reported to a central data base, while data on water and sediment quality are collected by a number of monitoring programs. Data from both sources are geo-referenced, allowing spatial analysis of relationships between Pesticide Application rates and the chemical and biological condition of water bodies. This study collected data from 12 watersheds, selected to represent a range of Pesticide usage. Water quality parameters were measured during six surveys of stream sites receiving runoff from the selected watershed areas. This study had three objectives: to evaluate the usefulness of Pesticide Application data in selecting regional monitoring sites, to provide information for generating and testing hypotheses about Pesticide fate and effects, and to determine whether in-stream nitrate concentration was a useful surrogate indicator for regional monitoring of toxic substances. Significant correlations were observed between Pesticide Application rates and in-stream Pesticide concentrations (p 0.30). Neither total watershed area nor the area in which Pesticide usage was reported correlated significantly with the amount of Pesticides applied, in-stream Pesticide concentrations, or in-stream toxicity (all p > 0.14). In-stream Pesticide concentrations and effects were more closely related to the intensity of Pesticide use than to the area under cultivation.
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Spatial relationships between water quality and Pesticide Application rates in agricultural watersheds.
Environmental monitoring and assessment, 2006Co-Authors: John W. Hunt, Brian S. Anderson, Bryn M. Phillips, Ronald S. Tjeerdema, Nancy Richard, Val Connor, Karen Worcester, Mark Angelo, Amanda Bern, Brian FulfrostAbstract:Pesticide Applications to agricultural lands in California, USA, are reported to a central data base, while data on water and sediment quality are collected by a number of monitoring programs. Data from both sources are geo-referenced, allowing spatial analysis of relationships between Pesticide Application rates and the chemical and biological condition of water bodies. This study collected data from 12 watersheds, selected to represent a range of Pesticide usage. Water quality parameters were measured during six surveys of stream sites receiving runoff from the selected watershed areas. This study had three objectives: to evaluate the usefulness of Pesticide Application data in selecting regional monitoring sites, to provide information for generating and testing hypotheses about Pesticide fate and effects, and to determine whether in-stream nitrate concentration was a useful surrogate indicator for regional monitoring of toxic substances. Significant correlations were observed between Pesticide Application rates and in-stream Pesticide concentrations (p < 0.05) and toxicity (p < 0.10). In-stream nitrate concentrations were not significantly correlated with either the amount of Pesticides applied, in-stream Pesticide concentrations, or in-stream toxicity (all p > 0.30). Neither total watershed area nor the area in which Pesticide usage was reported correlated significantly with the amount of Pesticides applied, in-stream Pesticide concentrations, or in-stream toxicity (all p > 0.14). In-stream Pesticide concentrations and effects were more closely related to the intensity of Pesticide use than to the area under cultivation.
J. B. Valenciano - One of the best experts on this subject based on the ideXlab platform.
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Effect of sowing techniques and seed Pesticide Application on dry bean yield and harvest components
Field Crops Research, 2006Co-Authors: J. B. Valenciano, Pedro A. Casquero, J. A. Boto, M. GuerraAbstract:Abstract Common bean, Phaseolus vulgaris L., is widely cropped by small farmers in the northwest of Spain. The emergence and establishment of common beans are affected by insects, soil fungi and crust formation. The objective of this study was to determine if seed Pesticide Application and sowing techniques improve bean yield. This work was carried out during 1998 and 1999 in the province of Leon, Spain. A split-split-plot design with three replications was used. The main plot was bean cultivar (“Rinon de Leon” and “Canela”), the subplot was the Application system of Pesticides (untreated, treatment on seed before sowing and treatment on seed during sowing) and the sub-subplot was the sowing technique (sowing in raised beds, sowing on the flat without adding substrate, sowing on the flat adding sawdust and sowing on the flat adding vermiculite). The plant population density at harvest and yield was improved by Pesticide Application and by addition of substrate in the seed row. Yield increase was caused by a higher plant population density at harvest. The sowing techniques had a greater influence on plant population density at harvest and bean yield than the Pesticide treatment carried out for its protection. Seed Pesticide Application improved number of pods per plant and 1000-seed weight.
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Evaluation of the occurrence of root rots on bean plants (Phaseolus vulgaris) using different sowing methods and with different techniques of Pesticide Application
New Zealand Journal of Crop and Horticultural Science, 2006Co-Authors: J. B. Valenciano, Pedro A. Casquero, J. A. Boto, V. MarceloAbstract:Abstract Root rots are the main diseases caused by soil fungi and their incidence can vary according to seed treatment and sowing techniques used. They cause loss of plants, limit establishment, and canlead to reduced plant development. There are negative correlations between yield and the presence of root rots. This work was carried out in 1998 and 1999 in the province of Leon, Spain. The factors investigated were respectively —bean landrace (Phaseolus vulgaris), Pesticide Application system, and sowing technique. Differences were noticed in response to sowing techniques where the number of damaged plants was higher with sowing in furrows (mean, 1.31% plants affected). With regard to Pesticide Application differences were only observed at Ribas in 1999, where there was reduced plant damage (83% with seed treated and 97% with soil treated in the row). There was a significant Pesticide Application by sowing technique interaction at Ribas 1999. Rhizoctonia solani was detected in 91.8% of affected plants.
Ajay Shah - One of the best experts on this subject based on the ideXlab platform.
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Techno-economic impacts of using a laser-guided variable-rate spraying system to retrofit conventional constant-rate sprayers
Precision Agriculture, 2020Co-Authors: Ashish Manandhar, Erdal Ozkan, Ajay ShahAbstract:Specialty crops, such as apples, are vulnerable to insects and pathogens, and require higher Pesticide input than row crops, a significant fraction of which is off-target loss, causing adverse environmental and socio-economic impacts. An advanced laser-guided variable-rate sprayer (VRS) could improve spray deposition uniformity and minimize Pesticide waste, while maintaining efficacy against insects and pathogens. Despite these merits, retrofitting a conventional sprayer with laser-guided variable-rate spraying functions adds to its cost. Thus, the objective of this study was to analyze the techno-economics of a conventional Pesticide sprayer retrofitted with VRS, in comparison to a conventional constant-rate sprayer (CRS) for Pesticide Application during apple production. A techno-economic model was developed for the apple orchards covering areas of 4 and 20 ha, which are common orchard sizes in the USA. The model incorporated cost for operation, equipment, fuel use and labor during Pesticide Application. The data were obtained from field tests in orchards in Ohio, USA in years 2016 and 2017, literature, and the original VRS development team at USDA-ARS and Ohio State University. The results indicated that VRS can reduce Pesticide costs by 60–67%, Pesticide Application time by 27–32% and labor and fuel by 28% compared to CRS. For larger orchards, VRS also reduced equipment requirement. Compared to CRS, overall annual Pesticide Application cost savings by using VRS were between $1420 and $1750 ha^−1. The payback time for using VRS was estimated to be between 1.1 and 3.8 years for apple orchards between 4 and 20 ha, respectively, in Ohio.