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Abstract: This study was conducted to develop a precision method of application for cyanazine, a pre-emergence herbicide which eventuates to save herbicide and reduce its adverse effects on the environment and agricultural products. For this purpose a digital management map (DMM) using the global positioning system (GPS) for variable rate application (VRA) was generated. Uncultivated field of about 6500 m2 was selected and local and universal transverse mercator (UTM) coordinates of the field were determined using total station surveying equipments and four static GPS receivers. Data processing was performed using a personal computer equipped with COMPASS software. Soil characteristics were determined by sampling and analyzing these samples. By considering manufacture recommendations for herbicide application based on soil organic matter content (OMC) and soil texture, four management zones with four different herbicide application rates as 1.4, 1.7, 2.9 and 3.5 L ha-1 were determined and eventually a DMM was generated. Using the generated DMM and VRA, total required herbicide for the selected field was determined to be 1.6 L. It was concluded that herbicide application can be decreased up to 13% in compared with a uniform herbicide application rate for the entire selected field.

To cite this article: Zamani, D Mohammad; Rashidi, M and Khabbaz, BG. Generation Digital Management Map for Herbicide Application in VRA Spraying by Using GPS [online]. In: Agricultural Technologies In a Changing Climate: The 2009 CIGR International Symposium of the Australian Society for Engineering in Agriculture. Brisbane, Queensland: Engineers Australia, 2009: [259]-[266]. Availability: <http://search.informit.com.au/documentSummary;dn=640639799413453;res=IELENG> ISBN: 9780858259096. [cited 28 Jul 16].

Personal Author: Zamani, D Mohammad; Rashidi, M; Khabbaz, BG; Source: In: Agricultural Technologies In a Changing Climate: The 2009 CIGR International Symposium of the Australian Society for Engineering in Agriculture. Brisbane, Queensland: Engineers Australia, 2009: [259]-[266]. Document Type: Conference Paper, Research ISBN: 9780858259096 Subject: Global Positioning System; Digital mapping; Soil texture; Precision farming; Agricultural engineering--Research; Soils--Organic compound content; Affiliation: (1) Department of Agricultural Machinery, Faculty of Agriculture, Islamic Azad University, Takestan Branch, Iran
(2) Department of Agricultural Machinery, Faculty of Agriculture, Islamic Azad University, Takestan Branch, Iran
(3) Faculty of Engineering and Surveying, University of Southern Queensland, Australia, emails: m.rashidi@aeri.ir

Database: Engineering Collection