Management zone delineation in arable crop systems

Ekanayake, Dinanjana; Roberts, Jessica; Royal, A.; Bennett, L.; Werner, Armin

dc.contributor.author	Ekanayake, Dinanjana	en
dc.contributor.author	Roberts, Jessica	en
dc.contributor.author	Royal, A.	en
dc.contributor.author	Bennett, L.	en
dc.contributor.author	Werner, Armin	en
dc.contributor.editor	Currie, L. D.	en
dc.contributor.editor	Burkitt, L. L.	en
dc.date.accessioned	2017-10-06T02:11:24Z
dc.date.issued	2015	en
dc.identifier.citation	Ekanayake, D., Roberts, J., Royal, A., Bennett, L., & Werner, A. (2015). Management zone delineation in arable crop systems. In L.D. Currie and L.L Burkitt (Eds.), Moving farm systems to improved attenuation: Occasional Report No.28. Fertilizer and Lime Research Centre, Massey University, Palmerston North, New Zealand. Retrieved from http://www.massey.ac.nz/~flrc/workshops/15/Manuscripts/Paper_Ekanayake_2015.pdf	en
dc.identifier.uri	https://hdl.handle.net/10182/8670
dc.description.abstract	Management Zone Delineation (MZD) could be of increasing importance for its economic and environmental benefits through varying rates of crop inputs to meet site-specific demands across individual fields. However, research on MZD in arable cropping systems is limited in New Zealand. Previous work from Lincoln Agritech Ltd. presented the benefits of Precision Agriculture for large scale farmers and contractors using yield, soil and aerial images to adopt Variable Rate Application of seeds, fertilizer and agro-chemicals. Furthermore, improved irrigation efficiency in wheat and maize cropping systems and maize zone delineation using Active Light-Nitrogen sensor, NIR camera technology and SPAD chlorophyll meter, were studied. The objective of the presented project is to develop methods and tools to identify optimal N supply rate for maize production with the emphasis on management zones and site adapted plant population densities in New Zealand. Two rain-fed maize fields from Waikato and one irrigated field from Canterbury were selected for field experiments. Yield and elevation data in 2013 and 2014 collected with a John Deer 7050 Series Self-Propelled Forage Harvester. Data analysis and mapping of management zone were done in Esri, ArcGIS 10.2.2. software. VESPER 1.6 free version from Australian Centre for Precision Agriculture was used to interpolate the data. Three management zones with low, medium and high yield potential were derived in the final map. Satellite images from Google Earth Archive of previous years were also used to delineate field boundaries and management zones. A strip-plot experimental design with 3 replicates was allocated to each management zone at each field. Three treatment levels of N fertilizer: farmer’s best N-fertilization practice, +35% and -35% were applied using calculated N-fertilizer demand prescription maps with an 8-row VRA fertilizer spreader. We expect that soil electrical conductivity field survey data, compatibility of yield data and prescription maps between different software packages, and the inclusion of annual yield data would improve the discriminating power of the various approaches.	en
dc.format.extent	7	en
dc.language.iso	en	en
dc.publisher	Fertilizer and Lime Research Centre	en
dc.relation	The original publication is available from - Fertilizer and Lime Research Centre - http://flrc.massey.ac.nz/workshops/15/Manuscripts/Paper_Ekanayake_2015.pdf	en
dc.rights	© The Authors & FLRC.	en
dc.source	28th Annual FLRC Workshop: Moving Farm Systems to Improved Nutrient Attenuation	en
dc.subject	arable crop systems	en
dc.subject	precision agriculture	en
dc.subject	management zones	en
dc.subject	management zone delineation	en
dc.title	Management zone delineation in arable crop systems	en
dc.type	Conference Contribution - Published
lu.contributor.unit	Lincoln University	en
lu.contributor.unit	Lincoln Agritech	en
lu.contributor.unit	Research Management Office	en
lu.contributor.unit	/LU/Research Management Office/2018 PBRF Staff group	en
dc.subject.anzsrc	0703 Crop and Pasture Production	en
dc.subject.anzsrc	079902 Fertilisers and Agrochemicals (Incl. Application)	en
dc.relation.isPartOf	Moving farm systems to improved attenuation, Occasional Report No. 28.	en
pubs.finish-date	2015-02-12	en
pubs.organisational-group	/LU
pubs.organisational-group	/LU/Lincoln Agritech
pubs.organisational-group	/LU/Research Management Office
pubs.organisational-group	/LU/Research Management Office/2018 PBRF Staff group
pubs.publication-status	Published	en
pubs.publisher-url	http://flrc.massey.ac.nz/workshops/15/Manuscripts/Paper_Ekanayake_2015.pdf	en
pubs.start-date	2015-02-10	en
dc.publisher.place	Massey University	en
dc.identifier.eissn	2230-3944	en
lu.identifier.orcid	0000-0002-0039-8202
lu.subtype	Conference Paper	en