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Title: Examining the potential for active optical sensors to provide biomass estimation in improved and native pastures
Contributor(s): Trotter, Mark (author); Lamb, David (author); Schneider, Derek (author); Edwards, Clare (author); McPhee, Malcolm J (author); Falzon, Gregory (author)orcid 
Publication Date: 2012
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Abstract: This study examined the potential for Active Optical Sensors (AOS) to provide estimates of green biomass in improved and native pastures. Two sampling campaigns were undertaken across two pasture types (improved and native) in September and October 2011. The AOS was found to correlate poorly with the green fraction of the sward in September when senescent material dominated the sward, particularly in the improved pastures. In contrast the AOS demonstrated good correlations with green dry matter in October when there was a higher proportion of green material in the sward. The correlation was particularly sound for the improved pasture (r² 0.91) and better than expected for the native pasture (r² 0.63). This study demonstrates the potential for AOS to provide rapid estimates of biomass in both improved and native pastures and suggests that further research be undertaken to further quantify the value of these sensors.
Publication Type: Conference Publication
Conference Name: 16th Australian Agronomy Conference, Armidale, Australia, 14th - 18th October, 2012
Source of Publication: Capturing Opportunities and Overcoming Obstacles in Australian Agronomy: Proceedings of 16th Australian Agronomy Conference (Precision Agriculture)
Publisher: The Regional Institute Ltd
Place of Publication: online
Field of Research (FOR): 070399 Crop and Pasture Production not elsewhere classified
070302 Agronomy
070304 Crop and Pasture Biomass and Bioproducts
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
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Series Name: Australian Agronomy Conference Proceedings
Series Number : 16
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Appears in Collections:Conference Publication
School of Environmental and Rural Science

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