Molybdenum for wheat grown on deficient in acidic yellow sandplain

1980

Research organisaton

Trial details

Researcher(s) N/A
Year(s) 1980
Contributor Department of Agriculture and Food WA
Trial location(s) Bodallin_2, WA
Molybdenum  for wheat  grown on  deficient in  acidic yellow  sandplain locations
Aims

To determine the residual value of previous applied Mo and determining the critical concentration of Mo in youngest fully emerged blades.

Key messages

 A series of experiments started in late 1970'S to the earlier 1980 on very acidic yelllow sands that are deficient in Mo.  

Yellow  acidic sandy earths with  soil pH (CaCl2) of <4.5. Mo trioxide at nil, 140 & 280 g/ha was applied on original nil Mo plots.

Summary of the Mo on very acidic yellow soils:

 With ammonium nitrate the recommended rate of Mo (140 g Mo trioxide) was  inadequate for wheat grain 2 -3 years later.. 

Mo effectiveness rapidly declines with 2 to 3 years after the application.

A general conclusion for this experimental series:_  The residual effectiveness of Mo for cereal is likely to vary widely in different situations depending on soil pH, soil content of free iron, aluminium and manganese and the rate and type of nitrogen fertliser applied to the crop.

Critical Mo concentratin in wheat YEB s appeared to be 0.03 - 0.06 mg/kg. The evaluation of Mo in the YEB as a reliable tissue test but suggested continuing testing into future years.

 

Lead research organisation Department of Agriculture and Food WA
Host research organisation Department of Agriculture and Food WA
Related program More Profit from Crop Nutrition
Acknowledgments N/A
Other trial partners Not specified

Method

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

Bodallin_2 1980

Sowing machinery

12 run sowing machine 

Sow date Not specified
Harvest date Not specified
Plot size 2.1m x 50m
Plot replication 4
Fertiliser

200 kg Plain super/ha; 

 Copper as Cu sulfate 6.5 kg/ha; Zn @ 2.0 kg/ha.

Mo applied as sodium molybdate at nil, 100 , 200 & 400 g/ha.

Nitrogen applied as ammonium nitrate.

 

 

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
Bodallin_2, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Bodallin_2, WA Kandosol
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.

Bodallin_2 WA

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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


No trial reports or attachments found


Trial last modified: 28-05-2019 11:46am AEST