Sugarcane yield monitoring: a protocol for yield map interpolation and key considerations in the collection of yield data

Bramley, R. G. V. and Jensen, T. A. (2013) Sugarcane yield monitoring: a protocol for yield map interpolation and key considerations in the collection of yield data. In: 35th Annual Conference of the Australian Society of Sugar Cane Technologists (ASSCT 2013), 16-18 Apr 2013, Townsville, Australia.

Abstract

Yield monitoring is a key element of Precision Agriculture (PA) given the importance of yield maps to the process of 'management zone' delineation and decisions around the targeting of inputs such as fertilisers. This paper presents a protocol for the interpolation of yield maps from yield monitor data and considers some critical issues in the data acquisition process relating to the calibration of the yield monitor to tonnages recorded at the mill. These strongly suggest that successful adoption of yield monitoring and mapping in the sugar industry, and thus of PA more broadly, will depend on significant improvements being made to the consignment system; electronic consignment presents as one possible solution to yield monitor calibration errors. In addition, yield mapping requires: geolocation with an accuracy of dGPS or better; yield monitor calibration on a per-harvest event basis, logging of yield data at 3 second intervals, or where more frequent logging is used, data thinning to an equivalent of 3 second logging; removal of errors and aberrant values from the yield monitor data based on harvester speeds of < 0.75 m/s and zero yields followed by cleaning of values that are more than three standard deviations from the mean yield; and map interpolation using local block kriging onto a 2 m grid, using exponential variograms, blocks of 10 m and a data cloud of 100 points.


Statistics for USQ ePrint 26354
Statistics for this ePrint Item
Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version, in accordance with the copyright policy of the publisher.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 10 Nov 2014 00:42
Last Modified: 22 Jun 2018 02:44
Uncontrolled Keywords: consignment; kriging; precision agriculture
Fields of Research : 07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070306 Crop and Pasture Nutrition
07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070104 Agricultural Spatial Analysis and Modelling
07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070103 Agricultural Production Systems Simulation
Socio-Economic Objective: B Economic Development > 82 Plant Production and Plant Primary Products > 8203 Industrial Crops > 820304 Sugar
URI: http://eprints.usq.edu.au/id/eprint/26354

Actions (login required)

View Item Archive Repository Staff Only