Shoot and root growth and potassium concentration of maize as affected by potassium fertilizer placement

Perna, Jason and Menzies, Neal (2010). Shoot and root growth and potassium concentration of maize as affected by potassium fertilizer placement. In: Robert Gilkes and Nattaporn Prakongkep, Proceedings of the 19th World Congress of Soil Science: Soil solutions for a changing world. 19th World Congress of Soil Science: Soil solutions for a changing world, Brisbane, Australia, (222-225). 1-6 August 2010.

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
UQ237086_fulltext.pdf ERA evidence - not publicly available application/pdf 132.27KB 2
Author Perna, Jason
Menzies, Neal
Title of paper Shoot and root growth and potassium concentration of maize as affected by potassium fertilizer placement
Conference name 19th World Congress of Soil Science: Soil solutions for a changing world
Conference location Brisbane, Australia
Conference dates 1-6 August 2010
Proceedings title Proceedings of the 19th World Congress of Soil Science: Soil solutions for a changing world
Place of Publication Brisbane, Australia
Publisher International Union of Soil Sciences
Publication Year 2010
Sub-type Fully published paper
ISBN 9780646537832
Editor Robert Gilkes
Nattaporn Prakongkep
Start page 222
End page 225
Total pages 4
Language eng
Abstract/Summary Banding of fertilisers is becoming a necessary part of conservation tillage. Unfortunately, when nutrients are placed in a band there is the possibility of insufficient root contact for optimum uptake. For nitrogen (N) and phosphorus (P), this issue is addressed through the well understood plant response of root proliferation. In contrast, there has been little work done on fractional fertilising of potassium (K), and the existing work indicates that K does not promote root proliferation. A pot trial with treatments consisting of six different fractional soil volumes fertilised with K was set up to determine the effect of fractional fertilisation of K on the plant uptake of K, root morphology and shoot biomass. Root proliferation occurred in treatments with a band application of fertiliser and with 6.25 and 12.5% of soil volume fertilised. There was no effect from fractional fertilisation on plant uptake of K or shoot biomass production. Plants were able to adapt to the resource environment and achieve adequate uptake of K regardless of the soil volume fertilised.
Keyword Potassium
Root proliferation
Potassium fertiliser
Zea mays
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Published on DVD

Document type: Conference Paper
Collection: School of Agriculture and Food Sciences
 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Thu, 17 Mar 2011, 10:55:51 EST by Professor Neal Menzies on behalf of School of Agriculture and Food Sciences