2018 Journal Papers

Immediately below are PDF files of individual papers from the 48th Agronomy Society Conference held at Twizel in 2018.  Please click on the title of interest to download the file: 

You can download the latest version of Adobe Reader (to open the PDF files) here


A modelling approach to assessment and improvement of nitrogen management on New Zealand arable farms: a case study

E.N. Khaembah and A. Horrocks pp. 1-11


The effect of potassium fertilisation and timing on potassium uptake, grain yield and grain quality in a spring sown wheat crop

A.E. Dawson, A.J. Bedford, R.T. Hamilton and M.J. Shand pp. 13-23


Wheat response to nitrogen under contrasting irrigation regimes

A.J. Michel, E.I. Teixeira, H.E. Brown, M.J. George, S. Maley, R.N. Gillespie, E.D. Meenken and K.K. Richards pp. 25-34


Potassium fertiliser requirements of fodder beet

E. Chakwizira, J.M. de Ruiter, S. Maley and S. Armstrong pp. 35-49


Autumn sown wheat requires different fungicide inputs under irrigated and dryland conditions

J.B. Drummond, R.A. Craigie and B.L. McCloy pp. 51-60


Effects of seed treatments on germination and growth of maize in the field

P.S. Oliver, E.D. Walker, S.K. Dalgety and D.M. Thomas pp. 61-66


Helicropping – the role of nitrogen and phosphorus in forage cropping with aerial no-tillage

P.M.S. Lane pp. 67-76


Simulating plant growth in diverse pastures with new forage models in APSIM

R. Cichota and V. Snow pp. 77-89


Thermal requirements for inflorescence emergence in plantain

G.M. Payne, A.V. Stewart and S. Abel pp. 91-100


Managing Pilosella officinarum (Hieracium) with sulphur in South Island High Country

M.D. Craighead pp. 101-113


Ryegrass seed production in New Zealand: achieving 3000+ kg/ha yields

M.P. Rolston, R.J. Chynoweth, S.R. Vreugdenhil and A.M. Gunnarsson pp. 115-123


Impact of varying plant densities on two industrial hemp cultivars grown in the Manawatu

Q.M. Swanepoel, R. Barge, E. Kawana-Brown and L.H.J Kerckhoffs pp. 125-135


A text mining analysis of proceedings of the New Zealand Agronomy Society 1971-2017 using Natural Language Processing

J. Liu, A. Hunt and L. Jesson pp. 137-148


Yield and tuber quality variability in commercial potato cultivars under abiotic stress in New Zealand

A.B. Siano, N. Roskruge, L.H.J. Kerckhoffs and S. Sofkova-Bobcheva pp. 149-163


Methods for measuring Rhizoctonia stem canker severity in potato crops

A.J. Michel, R.E. Falloon, K.K. Richards, S.M. Sinton, F.A. Shah and S.J. Dellow pp. 165-176


Issues facing larger-scale taro growing in New Zealand

A. Parshotam pp. 177-189


Deriving a dataset from the New Zealand National Soils Database (NZ-NSD) for use in Soil and Water Assessment Tool (SWAT) Modelling

A. Parshotam pp. 191-203