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Author: John V. Stafford Publisher: Brill Wageningen Academic ISBN: 9789086863631 Category : Conference proceedings Languages : en Pages : 0
Book Description
Precision agriculture is a reality in agriculture and is playing a key role as the industry comes to terms with the environment, market forces, quality requirements, traceability, vehicle guidance and crop management. Research continues to be necessary, and needs to be reported and disseminated to a wide audience. These proceedings contain reviewed papers presented at the 13th European Conference on Precision Agriculture, held in Budapest, Hungary. The papers reflect the wide range of disciplines that impinge on precision agriculture - technology, crop science, soil science, agronomy, information technology, decision support, remote sensing and others. The broad range of research topics reported will be a valuable resource for researchers, advisors, teachers and professionals in agriculture long after the conference has finished.
Author: John V. Stafford Publisher: Brill Wageningen Academic ISBN: 9789086863631 Category : Conference proceedings Languages : en Pages : 0
Book Description
Precision agriculture is a reality in agriculture and is playing a key role as the industry comes to terms with the environment, market forces, quality requirements, traceability, vehicle guidance and crop management. Research continues to be necessary, and needs to be reported and disseminated to a wide audience. These proceedings contain reviewed papers presented at the 13th European Conference on Precision Agriculture, held in Budapest, Hungary. The papers reflect the wide range of disciplines that impinge on precision agriculture - technology, crop science, soil science, agronomy, information technology, decision support, remote sensing and others. The broad range of research topics reported will be a valuable resource for researchers, advisors, teachers and professionals in agriculture long after the conference has finished.
Author: Andrew David Rackers Publisher: ISBN: Category : Electronic Dissertations Languages : en Pages : 192
Book Description
Variable rate irrigation was studied for the production of corn and rice on a nonuniformsoil texture using a three tower, conventional, center-pivot irrigation system on the East Marsh Pivot (Marsh Pivot) at the University of Missouri Delta Research Center in Portageville, MO. The soil of the Marsh Pivot is of the Hayti-Portageville-Cooter association. Veris Technologies' Soil Electrical Conductivity (EC) System was used in 2002 to determine the sand content within the soil. The mean sand was calculated from the deep reading of the system because the EC from the deep reading had the better correlation with the calibration soil samples from the Marsh Pivot. Six irrigation treatments were used for corn irrigation in 2009 and 2010. In 2009, 15 mm was used to produce the maximum yield for corn, but in 2010 46 mm was used to produce the maximum yield for corn on the non-uniform soils. However, for both years 8 mm produced yields equal to or greater than all other irrigation treatments at the 95% confidence interval. Seven repetitions of six irrigation treatments were studied on the east half of the Marsh Pivot in 2010. The center-pivot irrigation system produced average yields greater than conventional flood irrigation (8970 kg-ha-1 vs 7040 kg-ha-1, Vories et al., 2002) while using less applied water for an application depth of at least 11 mm, (790 mm vs 1200-1600 mm)., Jehangir et al., 2004).
Author: Latief Ahmad Publisher: Springer ISBN: 3030034488 Category : Technology & Engineering Languages : en Pages : 205
Book Description
This book focuses on the recent advances in precision agriculture and satellite farming, detailing applications for sensing, data handling, modeling, and control. In addition, the book reviews its history - establishing the background on the various processes and applications – describes the current status, and offers insight into the future technology of satellite farming in India. Introducing processes and applications based on a global scale, the book reveals how precision agriculture can be used in large-scale agriculture, community agriculture, and diversified farming. It includes site-specific information from a variety of information sources for planning, planting, growing, and harvesting agricultural crops. It also presents a new concept based on the control system theory that can be used to formulate systematic methods for more effective precision crop production. Precision agriculture when properly integrated into the crop production process, can greatly improve overall production and sustainability.
Author: Miguel Jesus Jimenez-Berni Publisher: ISBN: 9781303153723 Category : Languages : en Pages :
Book Description
Agriculture is the largest user of fresh water in the world. Therefore, any improvement in the efficiency of irrigation water use will result in cost reduction and the possibility of larger irrigated areas. This communication presents a precision irrigation system based on a wireless network of sensors and actuators in which a high level of control is achieved by means of valve automation. Water needs are calculated based on the crop characteristics, soil information, and the design of the irrigation system. Regional real-time weather data were obtained from the California Irrigation Management Information System (CIMIS). A new software system was developed to manage and control multiple valve groups according to different crops and strategies, and to make decisions on when and for how long to irrigate. The system was tested in almonds and walnuts where strategies based on evapotranspiration, stem water potential, and grower opinion were carried out. A total of 36 five-tree units were controlled with valves operated by the control software. Water use, yield, and nut quality were measured to analyze differences between the irrigation strategies. A cost/benefit analysis was also done using current water costs in different California agricultural regions. The use of this variable rate system to control irrigation based on evapotranspiration resulted in water savings of 1,776 m3/ha for almonds and 995 m3/ha for walnuts compared to normal grower control. Despite the reduction of water use, at current water costs these savings will not compensate for the differences in yield.
Author: William L. Kranz Publisher: ISBN: Category : Precision farming Languages : en Pages : 8
Book Description
This publication provides information about the electronic controls and communication equipment that have been developed to allow center pivots to deliver irrigation water based on spatial production levels, soil texture, fertility, or field topography. Though the focus of this publication is center pivot irrigation systems, some of the information could also apply to sprinkler irrigation systems tha move in a straight line across the field. (Page 1)
Author: Cengiz Kahraman Publisher: Springer ISBN: 3319310933 Category : Technology & Engineering Languages : en Pages : 406
Book Description
This book offers a multifaceted perspective on fuzzy set theory, discussing its developments over the last 50 years. It reports on all types of fuzzy sets, from ordinary to hesitant fuzzy sets, with each one explained by its own developers, authoritative scientists well known for their previous works. Highlighting recent theorems and proofs, the book also explores how fuzzy set theory has come to be extensively used in almost all branches of science, including the health sciences, decision science, earth science and the social sciences alike. It presents a wealth of real-world sample applications, from routing problem to robotics, and from agriculture to engineering. By offering a comprehensive, timely and detailed portrait of the field, the book represents an excellent reference guide for researchers, lecturers and postgraduate students pursuing research on new fuzzy set extensions.
Author: Xingye Zhu Publisher: LAP Lambert Academic Publishing ISBN: 9783659764080 Category : Languages : en Pages : 212
Book Description
Sprinkler irrigation is one of the key technologies in the development of water-saving irrigation. New equipment is an important guarantee to popularize sprinkler irrigation. A complete fluidic sprinkler, a new type of water-saving product, was originally invented in China. This product depends on Coanda effect theory to accomplish the functions of direct spraying, stepping, and reversing. We own the intellectual property for this product and for several correlative patents. A series of complete fluidic sprinklers and other water-saving products have been developed by relying on several national major projects. Writing a professional book is necessary to introduce the key technology for these new products. Knowledge on the characteristics of fluidic sprinkler and variable-rate irrigation system will have high academic value and practical significance.
Author: Aghil Yari Publisher: ISBN: Category : Languages : en Pages :
Book Description
"Variable-rate irrigation (VRI) is an emerging technology to optimize water and energy consumption, increase crop yields, and minimize environmental impacts. The goals of this research project were to assess the performance of VRI, to investigate field spatial and temporal variability for delineating irrigation management zones, and to quantify the potential water and energy savings, and crop productivity benefits of VRI for two crop types in southern Alberta. The research included a four-year field experiment during the 2013 to 2016 growing seasons at the Alberta Irrigation Technology Centre (AITC) in southern Alberta, Canada. In the 2013 and 2014 growing seasons, the experimental site was seeded to Hard Red Spring (HRS) wheat, and during the 2015 and 2016 growing seasons, Russet Burbank potato was planted. In 2013 and 2014, the performance of a center pivot irrigation system (CPIS) retrofitted with a commercial VRI package was assessed. Overall, the uniformity of application both along the system's lateral and in the travel direction were above 90% for the majority of the trials under the different wind speeds and water application depths. Wind speeds greater than 3.3 m s-1 reduced application uniformity by 3.9%. The volumetric flow measurement of the system indicated that up to 34% water savings can be achieved with VRI versus non-VRI. Moreover, the average energy cost decreased by 18% with VRI during the 2013 and 2014 seasons due to non-application of water to areas such as ponds, roads, and non-cropped areas in the study site. In an effort to delineate irrigation management zones for VRI application, temporal and spatial variation of soil physical and chemical properties were assessed. A stepwise multivariate regression approach and a fuzzy C-mean clustering algorithm were used to identify optimum number of variables for management zone delineation. It was found that soil electrical conductivity (EC), pH, and field elevation were the best of 10 parameters for management zone delineation. The validity criteria identified that the three management zones were optimum for the study site. Statistical analyses showed that the delineated management zones were significantly different in terms of crop yields. In the 2014 growing season, the highest wheat yield (4.80 t ha-1) was produced within the management zone three where the EC value was low and elevation was high. The lowest wheat yield (2.22 t ha-1) was in the management zone one situated in the high EC and low elevation areas. The AquaCrop model was used to optimize crop productivity within the three management zones. Simulation of HRS wheat growth in the study area under the different irrigation scenarios indicated that the crop yield would be improved with optimum irrigation application and drainage management.The study also has investigated the potato productivity under VRI technology in 2015 and 2016 growing seasons. Three irrigation applications (high, normal, and low irrigation treatments) were applied to Russet Burbank potatoes. In 2015, higher water application in the experimental plots resulted in no significant improvement to potato yield. The harvest of tubers in normal irrigation plots proved to be more uniform in quality and size of tubers. In 2016, there were no significant differences among irrigation treatments for any of the yield and quality factors analyzed." --
Author: John V. Stafford
Author: John V. Stafford
Author: M. C. Brouwer
Author: Andrew David Rackers
Author: Judith M. Kaspersma
Author: Latief Ahmad
Author: Miguel Jesus Jimenez-Berni
Author: William L. Kranz
Author: Cengiz Kahraman
Author: Xingye Zhu
Author: Aghil Yari