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Case Study

Increased potato yield with the application of biostimulants Mycorrcin Digester and Foliacin

BioStart Limited.

June 2007

Key words
Potato, increased yield, Mycorrcin, Digester, Foliacin.


Overview

  • A block was divided into 4 x 11 bed sub blocks (one boom width). Two sub blocks were treated and two were left as a control.
  • Variety: Agrea

 Program used:

  • 4lt/ha Digester prior to planting (1 Nov 2006)
  • 5lt/ha Mycorrcin Sprout development (6 Dec 2006)
  • 1lt/ha Foliacin Tuber initiation (30 Dec 2007)
  • 1lt/ha Foliacin Tuber bulking (15 Jan 2007)
  • 1lt/ha Foliacin Tuber bulking (1 Feb 2007)
  • Prior to harvest 4 plots measuring in total 9.32m were selected from the treated and untreated areas. The lifted potatoes were weighed and sorted into commercial grade and rejects.

 Potatoes being weighed from one of the treated blocks.


Results:

  •  Treated commercial grade (below):

potato3_1.jpg


  • Treated rejects (below):

potato3_2.jpg


Trial plot harvest

Untreated (below):

RepTotal No. potatoesTotal weight kgMarketable No.Marketable weight kgReject No.Reject weight kg
19613.07111.0252.0
211115.07813.0332.0
312017.59115.0292.5
49814.07312.0252.0
Total42559.531351.01128.5

 

Treated (below):

RepTotal No. potatoesTotal weight kgMarketable No.Marketable weight kgReject No.Reject weight kg
111217.57915.0332.5
28515.07013.0152.0
39717.08015.0172.0
410219.08117.0212.0
Total39668.531060.0868.5


Summary (below):

UntreatedTreated% increase
Total No.425396-7%
Total weight kg59.568.5+15%
Average weight kg0.1400.173+24%
Marketable No.313 310-1%
Marketable weight kg51.060.0+18%
Average marketable weight kg0.1630.194+19%
Reject No.11286-23%
Reject weight kg8.58.50%
Average reject weight kg0.0760.099+30%


Commercial harvest (below):

Average No. bins per bedTotal weight per bed kg
Untreated3.02,640
Treated3.53,080
%+17%

 

Return on investment (below):

  • Return on investment has been extrapolated to a hectare basis
ControlTreated
Total commercial grade kg/ha54,721kg64,377kg
Price/kg$0.40$0.40
Gross return$21,888.00$25,750.00
Cost of BioStart program/ha$0.00 $298.00
Net return$21,888.00$25,452.00
Difference+$3,564.00

Conclusion:

  • The treatment increased the marketable weight in the sample plots by 18%.
  • The sample plot results were confirmed when the block was commercially harvested. The treated beds had a 17% increase in total weight.
  • The increase in marketable potatoes has had a significant impact of return on investment.
  • The treatment increased net return by $3,564.00 per hectare.

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