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Crop Code No. 076

 

 

 

 

 

Potatoes, Sweet

 

 Soil Groups 1, 2, 3, or 4

 

 

 

Desire pH 6.0 – 6.5

Phosphorus

Potassium

 

Low

Medium

Sufficient

High

Excessive

 

Pounds of N-P2O5-K2O per acre

Low

#-200-300

#-200-200

#-200-150

#-200-100

#-200-0

Medium

#-100-300

#-100-200

#-100-150

#-100-100

#-100-0

Sufficient

#-  50-300

#-  50-200

#-  50-150

#-  50-100

#-  50-0

High

#-    0-300

#-    0-200

#-    0-150

#-    0-100

#-    0-0

Excessive

#-    0-300

#-    0-200

#-    0-150

#-    0-100

#-    0-0

#see comments

COMMENTS (1, 4, 5, 6, 7, 9, 13, 105, 160, 245, 650, 653)

13  This is a manganese sensitive crop.  Apply 10 lbs manganese per acre with the fertilizer when manganese deficiency has been observed in previous years.  When manganese
deficiency symptoms occur, confirm by a plant analysis. Apply manganese as a foliar spray either singularly or mixed with a pesticide.  Make one or two applications of 1 lb manganese
per acre. 

160  Broadcast all the recommended phosphate and half of the recommended potash fertilizer and work into the soil prior to planting.  Sidedress with 50 to 80 lbs nitrogen per acre and the remainder of the recommended potash 21 to 28 days later after planting. 

245  This is a boron sensitive crop.  Apply with broadcast fertilizer 0.5 lbs boron per acre, or foliar apply 0.25 lbs boron per acre 40 to 80 days after planting.  (When soil test boron is not excessive)