Irrigation Discussion Group Focus Paddock - Impact of nitrogen & micronutrients on crop yield

2022

Research organisatons
Funding source

Trial details

Researcher(s) Bendan Wallis
Contact email charlie.aves@irrigatedcroppingcouncil.com.au
Contact phone 0416400979
Year(s) 2022
Contributor Irrigated Cropping Council
Trial location(s) Frances 2022,
Irrigation Discussion Group Focus Paddock - Impact of nitrogen & micronutrients on crop yield locations
Aims

To increase irrigated wheat yields with well-timed applications of foliar sprays as well as pre seeding applications of micronutrients.

Key messages
  • No significant differences were recorded from the addition of zinc, copper, and manganese. However, when removing large grain yields there will be large levels of removal from the soil. This needs to be replaced to avoid over mining the soils.
  • Nitrogen is still he major element which controls yield and grain protein. Need to ensure that the crop is fed to the yield potential to maximise both.
  • Know your starting base of nitrogen within the soil is important to determine nitrogen fertiliser rates. When we have Urea at over $1500/t you want to be using it strategically.
Lead research organisation Irrigated Cropping Council
Host research organisation MacKillop Farm Management Group
Trial funding source GRDC ICF1906-002RTX
Related program N/A
Acknowledgments

MacKillop Farm Management Group would like to thank Circle H Farms for hosting this trial. We would also like to thank SARDI for sowing, harvesting, in-crop management and quality analysis of the trial.


Other trial partners Pinion Advisory
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Crop: Nutrition
Trial type Experimental
Trial design Replicated

Frances 2022 2022

Sow date 19 May 2022
Harvest date 7 December 2022
Plot size Not specified
Plot replication Not specified
Fertiliser

Treatment variables consisted of +/- foliar application of trace elements as well as +/- the addition of a non-chemical organic product Humates FF50 as a source of nutrients.

We also had a farmer practice treatment to reflect what is happening in the paddock as a comparison.

All plots (with exception of the farmer practise and the nil plots) received the same nitrogen treatments with 118kg/ha of N applied.  Farmer practice plots received 256kg/ha of N. this was applied in the form of urea and DAP (down the tube at seeding). Farmer practise plots also received 3l/ha of smart trace triple foliar spray.

Nutritional analysis of the foliar and humate products are outlined below in tables 1 and 2.  

Table 1: Humates FF50 nutritional analysis.

Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Frances 2022, Not specified
Derived trial site soil information
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

Loading

Climate

Frances 2022 2022


Observed climate information

Rainfall trial gsr (mm) 428mm

Derived climate information

Frances 2022

Loading
Loading
Loading

Some data on this site is sourced from the Bureau of Meteorology

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.

Trial report and links

2022 trial report

Event Date Type Effect
Rainfall at harvest

115.4mm of the total growing season rainfall of 428mm fell within the harvest period of November and December 

30-11-2023 Nov - Dec High rainfall N/A


Trial last modified: 23-05-2023 11:41am AEST