CSIRO Publishing Books Journals About Us Shopping Cart You are here: Journals > Animal Production Science   
Animal Production Science
  Food, Fibre and Pharmaceuticals from Animals
 
Search
 
 
  Advanced Search
   

Journal Home
About the Journal
Editorial Board
Contacts
Content
Online Early
Current Issue
Just Accepted
All Issues
Special Issues
Research Fronts
Reviews
Sample Issue
For Authors
General Information
Notes for Authors
Submit Article
Open Access
For Referees
General Information
Review Article
Annual Referee Index
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates

 Early Alert
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

 Connect with us
facebook   youtube

Training

Publication Workshops


 

Article << Previous     |     Next >>   Contents Vol 46(11)

Poor incorporation of lime limits grain yield response in wheat

B. J. Scott A B D, N. E. Coombes C

A NSW Department of Primary Industries, Agricultural Institute, PMB, Wagga Wagga, NSW 2650, Australia.
B Current address: EH Graham Centre for Agricultural Innovation (NSW Department of Primary Industries and Charles Sturt University), Faculty of Science and Agriculture, School of Agricultural and Veterinary Sciences, Charles Sturt University, Locked Bag 588, Wagga Wagga, NSW 2678, Australia.
C NSW Department of Primary Industries, Agricultural Institute, Private Mail Bag, Wagga Wagga, NSW 2650, Australia.
D Corresponding author. Email: bscott@csu.edu.au
 
PDF (143 KB) $25
 Export Citation
 Print
  


Abstract

Thorough mixing of lime with the soil is a standard recommendation for lime application. However, the implements and passes that may be used to achieve this in Australian cereal farming are unclear. Therefore, 2 experiments were conducted to examine the incorporation of lime applied at 0, 2 and 5 t/ha using a range of different agricultural implements and numbers of cultivation events. Shoot dry matter and grain yield of wheat were measured in the year of lime application in both experiments. The plots were resown to wheat in the following season by direct drilling, and measurements were repeated. In a dry season, high soil disturbance (rotary hoe and disc harrow) improved the response of wheat to lime in the first year of experiment 1. In experiment 2, rainfall was higher, and the advantage from thorough incorporation was less clear. However, the rank order of incorporation methods and lime responsiveness was positively correlated with that in experiment 1 for both dry matter and grain yield; thorough incorporation tended to give better responses to lime than ‘poor’ incorporation (light harrowing). In the second year of experiment 1 there was limited evidence of the influence of incorporation method on lime response. In the second season of both experiments the effects of incorporation method on lime response had dissipated or other effects were more important. We found that to maximise grain yield responses to lime, the most effective incorporation was achieved with a disc harrow or with multiple passes with a tined implement (scarifier). Incorporation limited to a light harrow was inadequate. However, any effects of method of incorporation reduced or disappeared in the following season, even when direct drilling was used and there was limited further soil disturbance.

Keywords: cultivation, implements, machinery, soil acidity, soil pH.


   
Subscriber Login
Username:
Password:  

    


 
Top  Email this page
 
Legal & Privacy | Contact Us | Help

CSIRO

© CSIRO 1996-2012