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Fact Sheet-07-23 A PRECISION AGRICULTURE FERTILIZATION PROGRAM FOR ALFALFA HAY PRODUCTION: WILL IT PAY FOR ITSELF?
"... Nevada producers are increasingly interested in alternative technological methods such as precision agriculture (PA) that will increase their yields while maintaining acceptable levels of production expenses. According to Prairie Geomatics (date unknown) PA can be described as, “an information and t ..."
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and variable-rate technology for fertilizer application. Lovelock has approximately 22,000 acres of
Variable rate fertilizer application in Turkish wheat agriculture: Economic assessment AJAR 2010
"... Fertilizer application is one of the most important operations in agricultural production. Traditionally, fertilizer is applied onto the whole farmland regardless of the variations across the land. Soil cores are taken randomly through the field and mixed into a single sample, which is then analyzed ..."
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is then analyzed, and consequently a unique fertility recommendation is made in accordance with the results. However, with this new technology of precision farming, grid or zone sampling is employed to determine the variability of the farmland soil fertility and fertilizers at variable-rates are applied onto each
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"... The objective of this paper was to report the development of precision agriculture for rice crop production in Taiwan during past five years. Three multi-disciplinary research teams have been organized for the purposes of developing techniques required for monitoring growth status and environmental ..."
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conditions for rice crop; integrating the elements necessary for fertilization recommendation system and pest management system; and developing machinery for yield monitoring and mapping system, field-based remote sensing system, variable-rate pesticide spraying system, and variable-rate fertilizing system
Title: Use of Slow-Release N Fertilizer to Control Nitrogen Losses Due to Spatial and Climatic Differences in Soil Moisture Conditions and Drainage
"... Management strategies to reduce soil N loss include improved timing of N fertilizer applications, better use of soil and plant testing procedures to determine N availability, switching to use of variable-rate N fertilizer applications and other more effective N fertilizer application methods, applic ..."
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Management strategies to reduce soil N loss include improved timing of N fertilizer applications, better use of soil and plant testing procedures to determine N availability, switching to use of variable-rate N fertilizer applications and other more effective N fertilizer application methods
AUGER-TYPE GRANULAR FERTYLIZER DISTRIBUTOR: MATEMATHICAL MODEL AND DYNAMIC SIMULATION
"... ABSTRACT: The objective of this study was to model mathematically and to simulate the dynamic behavior of an auger-type fertilizer applicator (AFA) in order to use the variable-rate application (VRA) and reduce the coefficient of variation (CV) of the application, proposing an angular speed controll ..."
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ABSTRACT: The objective of this study was to model mathematically and to simulate the dynamic behavior of an auger-type fertilizer applicator (AFA) in order to use the variable-rate application (VRA) and reduce the coefficient of variation (CV) of the application, proposing an angular speed
Managing Phosphorous Soil Dynamics Over Space and Time
- 2005 Annual Meeting of the American Agricultural Economics Association
, 2005
"... Disclaimer: The views and opinions expressed in this manuscript do not necessarily represent those of the USDA or ERS. i Understanding the relationship between soil fertility dynamics and crop response is conceptually appealing. Even more appealing is comprehension of the spatial and temporal hetero ..."
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Disclaimer: The views and opinions expressed in this manuscript do not necessarily represent those of the USDA or ERS. i Understanding the relationship between soil fertility dynamics and crop response is conceptually appealing. Even more appealing is comprehension of the spatial and temporal
Summary
"... Developing accurate variable-rate technology (VRT) fertilizer application maps is critical in implementing precision farming management. Intensive grid soil sampling has traditionally been used to develop application maps. Research at the University of Nebraska found that in many cases where the spa ..."
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Developing accurate variable-rate technology (VRT) fertilizer application maps is critical in implementing precision farming management. Intensive grid soil sampling has traditionally been used to develop application maps. Research at the University of Nebraska found that in many cases where
Economic Analysis of Phosphorus Applications under Variable and Single-Rate Applications in the Bothaville District
"... Variable-rate (VR) application of inputs in South African cash crop production is mainly concerned with fertilizer and lime, and this indicates the importance of these inputs in cash crop production. However, the profitability of VR application of inputs has not yet been investigated under South Afr ..."
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Variable-rate (VR) application of inputs in South African cash crop production is mainly concerned with fertilizer and lime, and this indicates the importance of these inputs in cash crop production. However, the profitability of VR application of inputs has not yet been investigated under South
AN INTEGRATED GIS AND KNOWLEDGE-BASED DECISION SUPPORT SYSTEM IN ASSISTING FARM-LEVEL AGRONOMIC DECISION-MAKING
"... A main task in agriculture production is field management of water and fertilizer. Excessive fertilizer and water application not only waste resource but also pollute the environment. The traditional principle of digital agriculture can only apply in flat or plain place where a large field usually s ..."
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that the variable-rate application of water and fertilizer to any regular or irregular cultivated field can be addressed. The core technology involved includes expert knowledge representation, model organization, software data exchange standard and integration of GIS, expert knowledge and analysis model
Congress Sponsored by ASAE and CIGR
, 2002
"... Abstract. There has been much advancement in GPS receiver technology in recent years. GPS accuracy, especially the dynamic (moving) accuracy, is very important in precision agriculture for collecting data and controlling variable rate inputs. Typical applications of GPS receivers in agriculture incl ..."
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include yield monitoring, parallel tracking and variable-rate application of fertilizer. Perhaps more important is the relevance of existing tests (primarily static tests), and the inability to compare receivers because of a variety of reporting formats. This project evaluated several different receivers
Results 11 - 20
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