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Crop Code No. 030

 

 

 

 

 

Small Grain in Rotation before Soybeans

 

 Soil Groups 1, 2, 3, 4 or 6

 

 

 

Desired pH 6.0-6.5

Phosphorus

Potassium

 

Low

Medium

Sufficient

High

Excessive

 

pounds of N-P2O5-K2O per acre

Low

 80-120-80

 80-120-60

 80-120-40

 80-120-0

 80-120-0

Medium

 80-  80-80

 80-  80-60

 80-  80-40

 80-  80-0

 80-  80-0

Sufficient

 80-  40-80

 80-  40-60

 80-  40-40

 80-  40-0

 80-  40-0

High

 80-    0-80

 80-    0-60

 80-    0-40

 80-    0-0

 80-    0-0

Excessive

 80-    0-80

 80-    0-60

 80-    0-40

 80-    0-0

 80-    0-0

 COMMENTS (1, 4, 5, 6, 7, 8, 9 15, 33, 35, 650, 651, 653)

15  When recommended rates of phosphate and potash fertilizer were applied to previous crop, additional phosphate and/or potash may not be needed.

 

33  Reduce nitrogen fertilizer rate by 20 lbs nitrogen per acre for Piedmont soils. (Soil Code 4)

35  When not grazed, apply 30 lbs nitrogen per acre and recommended rate of phosphate and potash at planting.  Apply the balance of nitrogen as a top-dress in February.  Depending
on soil type and residual nitrogen levels, optimal yield response typically occurs at 90 lbs per acre for dryland wheat and 120 lbs per acre for irrigated wheat.  When grazed, apply 60 lbs nitrogen per acre in the fall at planting and 60 lbs nitrogen per acre in February.  Increase nitrogen rate by 80 to 100 lbs nitrogen per acre for above normal stocking rates.

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

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