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38% increasing in potato yield with Multi-K Mg

The Multi-K™ Mg treatment outperformed the existing side dressing practice in all areas measured


Potatoes/ Coliban (Fresh Market)
Country / locationAustralia/Berrigan, southern New South Wales
ObjectivesCompare existing side dressing practice with Multi KMg prills to increase tuber yield and skin quality. The focus is also on timing of applications
Haifa product testedMulti-K™ Mg (12-0-42+2MgO)
Application methodSide dressing
Tested treatment3x250 kg/ha by side-dressing
Control treatment resultsTotal Yield: 44.19 MT/ha
Number 1 Grade Tubers: 24.63 MT/ha
Skin Quality: Some Spotting
Best treatment resultsTotal Yield 59.63 MT/ha
Number 1 Grade Tubers: 39.41 MT/ha
Skin Quality: Clean and White
Characteristics of best treatmentYield increase:  15.44 MT/ha (35%)
Number 1 Grade increase 14.78 MT/ha(60%)
Grower’s revenue from yield: (No. 1 grade) 306 $US/MT
Cost of treatment (application + material) 400 $US/ha
Net benefit of best treatment3990 $US/ha
Benefit/Cost ratio11
ConclusionsThe Multi KMg treatment out performed the existing side dressing practice in all areas measured. We are finding the timing of the applications are just as, if not more important in influencing results than rates/ha. In Australia the fresh market potatoes are currently priced significantly higher than processing – there are large benefits in improving yield and quality.
ReferenceMatt Thomas, Multifert Agencies


Need more information about how to grow potato? You can always return to the potato fertilizer & potato crop guide table of contents



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