To determine if DGT could predict P fertiliser requirements for the field and to compare results from the DGT soil P test with other common soil P testing techniques (Colwell P and resin).
Key messages
The DGT method is an improved soil test for predicting P response from a given soil.
Greater confidence in accurately predicting P fertiliser requirements can be obtained from using DGT measurements.
Lack of response to liquid and granular P at two trial sites in the Birchip region were explained with greater accuracy using DGT measurements.
Trial source data and summary not available Check the trial
report PDF for trial results.
Climate
Derived climate information
No observed climate data available for this trial. Derived climate data is
determined from trial site location and national weather sources.
Birchip VIC
Hopetoun VIC
Birchip VIC
CAUTION: Trial site locality unknown; Climate data sourced from Birchip Cropping Group office location
Hopetoun VIC
NOTE: Exact trial site locality unknown - Climate data may not be accurate
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to
construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol
16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
