To assess simple nitrogen management strategies to determine the best return on investment from fertiliser nitrogen applications.
To determine within a crop rotation (wheat, barley and canola) where was your fertiliser dollar best spent over a number of seasons.
Key messages
In wheat an application rate of 20 kg N/ha in-season was sufficient to achieve the highest yield at Hart in 2017. However, it was the 80 kg/ha treatment which maximised yield and protein to achieve the best return on nitrogen fertiliser invested.
For barley an application of 40 kg N/ha was adequate to produce the highest yield and quality within the trial.
DAP (18:20) @ 60 kg /ha at seeding (equivalent to 10 kg N/ha).
In-season nitrogen rates Table 1 of trial report.
Other trial notes
While all due care has been taken in compiling the information within this manual the Hart Field-Site Group Inc or researchers involved take no liability resulting from the interpretation or use of these results. We do not endorse or recommend the products of any manufacturers referred to. Other products may perform as well or better than those specifically referred to. Any research with un-registered products and rates in the manual does not constitute a recommendation for that particular use by the researchers or the Hart Field-Site Group Inc.
Hart 2017 Barley
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Fertiliser
Not specified
Other trial notes
While all due care has been taken in compiling the information within this manual the Hart Field-Site Group Inc or researchers involved take no liability resulting from the interpretation or use of these results. We do not endorse or recommend the products of any manufacturers referred to. Other products may perform as well or better than those specifically referred to. Any research with un-registered products and rates in the manual does not constitute a recommendation for that particular use by the researchers or the Hart Field-Site Group Inc.
Hart 2017 Canola
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Fertiliser
Not specified
Other trial notes
While all due care has been taken in compiling the information within this manual the Hart Field-Site Group Inc or researchers involved take no liability resulting from the interpretation or use of these results. We do not endorse or recommend the products of any manufacturers referred to. Other products may perform as well or better than those specifically referred to. Any research with un-registered products and rates in the manual does not constitute a recommendation for that particular use by the researchers or the Hart Field-Site Group Inc.
█
50 kg N/ha seeding + 50 kg N/ha late cabbage +100 kg N/ha bolting
41.1
1.31
5
█
200 kg N/ha @ bolting
38.5
1.52
Grain yield t/ha
Protein %
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.
Hart SA
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.
