Residual effects of fertiliser manganese on a grey sand at lBadgingarra Station WA

1982

Research organisaton

Trial details

Researcher(s) N/A
Year(s) 1982
Contributor Department of Agriculture and Food WA
Trial location(s) Badgingarra, WA
Residual effects of fertiliser manganese on a grey sand at  lBadgingarra Station WA locations
Aims

To investigate the effects of rates of initial and subsequent applications of manganese on lupin yields grown on Mn deficient soil

Key messages

In 1978, a residual value trial in which it is possible to compare the effectiveness of previuos applied Mn with cuuently applied Mn.  The Mn sulfate at 15, 30 & 60 kg/ha in 1978 produced maximum seed yield. The 15 & 30 kg Mn sulfate applied in 1982 produced the same maximum seed yield as Mn applied in 1978.  However, the 15 kg/ha of Mn sulfate applied in 1978 & 1982 still resulted in 11 - 16% split seed compared to the nil Mn that had 40% split seed. THe 30 kg Mn sul /ha reduced split seed to <5%.

The Mn concentration in whole shoot was 34 mg/kg; indicating Mn deficiency The Mn concentration in whole shoots with 15 kg Mn sul/ha was similar (80 mg/kg) for 1978 and 1982 applications.

THese results suggest that the residual value of soil applied Mn is greater than originally thought 

Lead research organisation N/A
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 Grain Legume: Lupins
Treatment type(s)
  • Fertiliser: Type
Trial type Experimental
Trial design Unknown

Badgingarra 1982

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser

Micronutrients Cu, Zn and Mo basals

P @ 15 kg P/ha

Mn applied with super at nil, 15, 30 & 60 kg Mn sulfate/ha.  THe highest rate was applied at selected years.



Trial last modified: 21-05-2019 20:16pm AEST