Abstract
AbstractIn New Zealand, potato crop yields of 90 t ha−1 are achievable but at 55 t ha−1, the average is becoming economically unsustainable. In 2012/13, a grower-initiated survey found that Rhizoctonia solani and Spongospora subterranea (soil-borne pathogens) and soil compaction were widespread in 11 Canterbury potato crops. Targeted areas in these crops had measured yield losses of 0 (healthy plants) – 42 (diseased, resource constrained plants) t ha−1, limiting the farmer-measured field yield to a 56 t ha−1 average. In 2014/15, growth, water use and health of three contrasting crops were measured. Near-potential yield was achieved in one crop when disease incidence and severity were low and resources adequate. The other two crops yielded less than potential; one had an inadequate water supply and the other widespread soil-borne disease. Any suspected links between soil-borne disease, soil compaction and yield were further investigated by using them as factors in replicated experiments reported elsewhere.
Funder
The New Zealand Institute for Plant And Food Research Limited
Publisher
Springer Science and Business Media LLC
Subject
Agronomy and Crop Science,Plant Science
Reference29 articles.
1. Carter, M.R., and J.B. Sanderson. 2001. Influence of conservation tillage and rotation length on potato productivity, tuber disease and soil quality parameters on a fine sandy loam in eastern Canada 2001. Soil and Tillage Research 63: 1–13.
2. CIP, 2018. Potato facts and figures. Available at https://cipotato.org/crops/potato/potato-facts-and-figures/. Accessed 6 Nov 2018.
3. Falloon, R.E., U. Merz, R.C. Butler, D. Curtin, R.A. Lister, and S.M. Thomas. 2016. Root infection of potato by Spongospora subterranea: Knowledge review and evidence for decreased plant productivity. Plant Pathology 65: 422–434.
4. FAO, 2008. Sustainable potato production. Guidelines for developing countries. www.fao.org/3/a-i1127e.pdf. Accessed 6 November 2018.
5. Fletcher, J.D. 2012. A virus survey of New Zealand fresh, process and seed potato crops during 2010–11. New Zealand Plant Protection 65: 197–203.
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