Bulb Onions
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Crop Code No. 068

 

 

 

 

 

Onions, Bulb

 

 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

#-200-200

#-200-100

#-200-75

#-200-50

#-200-0

Medium

#-150-200

#-150-100

#-150-75

#-150-50

#-150-0

Sufficient

#-100-200

#-100-100

#-100-75

#-100-50

#-100-0

High

#-  50-200

#-  50-100

#-  50-75

#-  50-50

#-  50-0

Excessive

#-    0-200

#-    0-100

#-    0-75

#-    0-50

#-    0-0

#see comments

COMMENTS (1, 4, 5, 6, 7, 105, 152, 241, 244, 650, 652, 653)

152  Broadcast 50 to 75 lbs nitrogen per acre and the recommended phosphate and potash and work into the soil prior to planting.  Sidedress with 50 to 75 lbs nitrogen per acre 4 to 5 weeks after planting.

241  This is a boron sensitive crop.  Apply with broadcast fertilizer 1 to 2 lbs boron per acre.  (When soil test boron is not excessive)

244  Apply with broadcast fertilizer 20 lbs sulfur per acre.

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)