Irrigation Discussion Group Focus Paddock - Maize Nutrition

2020

Research organisaton
Funding source

Trial details

Researcher(s) N/A
Contact email charlie.aves@irrigatedcroppingcouncil.com.au
Contact phone 0416400979
Year(s) 2020
Contributor Irrigated Cropping Council
Trial location(s) Cooma, VIC
Irrigation Discussion Group Focus Paddock - Maize Nutrition locations
Aims

To supply all the maize crops nutritional needs as identified through tissue testing at three growth stages thought the season and see what the maximum yield potential is. Compare this with farmer pratice to understand the economics of pushing yield. 

Key messages

Additional N was applied to the entire area during the season, until the 3rd week of January.  The nitrogen level still continued to fall below the desirable range from Reuter & Robinson (1997) even with these applications, with a further decrease observed past the end of January.  This indicates that additional applications of late season N may have been required.

Additional P and Zn was applied to the unlimited strip in both late November and December.  Given this the P level still continued to appear marginal into January.

As the K levels in the plant appeared to be dropping in mid January additional K was applied to the crop.  Following this application the drop in K continued in the plant tissue, although it could be assumed that without this late K application the drop in K may have been to a greater extent.

Despite the tissue tests indicating nutrient requirements, no increase in yield was obtained bny applying additional applied nutrients

Cooma VIC 2020

Irrigation system: Drip

Variety grown: P1756

Tissue testing conducted: at less then 30cm / over 30cm (but not tassling) / 50% silking

 

Lead research organisation Irrigated Cropping Council
Host research organisation N/A
Trial funding source GRDC ICF1906-002RTX
Related program N/A
Acknowledgments

Ian & Mary Hamono for hosting the demonstration

Scott Palmer from SLTec for monitoring the demonstration


Other trial partners Maize Association of Australia
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Maize
Treatment type(s)
  • Crop: Nutrition
  • Fertiliser: Type
Trial type Demonstration
Trial design Unreplicated

Cooma 2020

Sow date 7 November 2019
Harvest date 17 April 2020
Plot size Not specified
Plot replication Not specified
Fertiliser

1. Unlimited Strip

The application and timing of the nutrients applied during the season was determined based on the tissue analysis conducted at the three key stages.  The total program consisted of the following:

  • 200 kg/ha urea pre drilled
  • 120 kg/ha granulock Z predrilled
  • 280 kg/ha DAP predrilled
  • 80 L/ha Corn PopupTM (8.8:11.1:0) in furrow at planting
  • 550 kg/ha urea fertigated throughout the season (including post January) Approx Weeks 5,7,9,11. (approx. 11/12/19, 25/12/19, 8/1/20, 22/1/20)

Foliar:

  • 29/11/19 applied 10 L/ha High PZTM (0:18:2:14.1)
  • 11/12/19 applied 20 L/ha High PZTM
  • 16/12/19 applied 4 L/ha of
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
Cooma, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Cooma, VIC Sodosol
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

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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.

Cooma VIC

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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

2020 trial report



Trial last modified: 23-05-2023 12:16pm AEST