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Crop Code No. 095

 

 

 

 

 

Potatoes, Irish

 

 Soil Groups 1 or 2

 

 

 

Desire pH 6.0 – 6.5

Phosphorus

Potassium

 

Low

Medium

Sufficient

High

Excessive

 

Pounds of N-P2O5-K2O per acre

Low

#-110-200

#-110-150

#-110-100

#-110-50

#-110-0

Medium

#-  90-200

#-  90-150

#-  90-100

#-  90-50

#-  90-0

Sufficient

#-  70-200

#-  70-150

#-  70-100

#-  70-50

#-  70-0

High

#-  50-200

#-  50-150

#-  50-100

#-  50-50

#-  50-0

Excessive

#-    0-200

#-    0-150

#-    0-100

#-    0-50

#-    0-0

#see comments

COMMENTS (1, 4, 5, 6, 7, 9, 28, 105, 107, 156, 650, 652, 653)

28  This is a boron sensitive crop.  Apply 0.5 lbs boron per acre in fertilizer.  (Recommended when soil test boron is less than 3.0 lbs per acre)

105  To convert nitrogen, phosphate, and potash recommendations from pounds per acre to pounds per 1,000 square feet (or each 300 feet of row), divide by 43.5.

107  For scab-susceptible varieties, maintain soil pH between 5.0 and 5.5.

156  Broadcast 85 to 135 lbs nitrogen with the recommended phosphate and potash fertilizer and work into the ground when preparing for planting.  Band-place 15 lbs nitrogen and 50 lbs phosphate fertilizer per acre at planting.

652  The soil test manganese is low, however, this is not a manganese sensitive crop, therefore no manganese is recommended.  (When soil test manganese is low)