Generation digital management map for herbicide application in VRA spraying by using GPS

Paper

Mohammad Zamani, D., Rashidi, M. and Khabbaz, B. G.. 2009. "Generation digital management map for herbicide application in VRA spraying by using GPS ." Banhazi, T. M. and Saunders, C. (ed.) SEAg 2009: Agricultural Technologies In a Changing Climate. Brisbane, Australia 13 - 16 Sep 2009 Brisbane, Australia.

Paper/Presentation Title	Generation digital management map for herbicide application in VRA spraying by using GPS
Presentation Type	Paper
Authors	Mohammad Zamani, D. (Author), Rashidi, M. (Author) and Khabbaz, B. G. (Author)
Editors	Banhazi, T. M. and Saunders, C.
Journal or Proceedings Title	Proceedings of the 2009 CIGR International Symposium of the Australian Society for Engineering in Agriculture (SEAg 2009)
Number of Pages	8
Year	2009
Place of Publication	Brisbane, Australia
ISBN	9780858259096
Web Address (URL) of Paper	http://search.informit.com.au/fullText;dn=640639799413453;res=IELENG
Conference/Event	SEAg 2009: Agricultural Technologies In a Changing Climate
Event Details	SEAg 2009: Agricultural Technologies In a Changing Climate Event Date 13 to end of 16 Sep 2009 Event Location Brisbane, Australia
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.
Keywords	variable rate application; Global Positioning System (GPS); digital management mapping; soil organic water content; soil texture; pre-emergence herbicide; precision farming
ANZSRC Field of Research 2020	300206. Agricultural spatial analysis and modelling
	300207. Agricultural systems analysis and modelling
	409901. Agricultural engineering
Public Notes	File reproduced in accordance with the copyright policy of the publisher/author.
Byline Affiliations	Islamic Azad University, Iran
	National Centre for Engineering in Agriculture

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