Corn for Silage

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*Crop Code No. 023*
Corn for Silage

Soil Groups 1, 2, 3, or 4					Desired pH 6.0-6.5
Phosphorus	Potassium
	Low	Medium	Sufficient	High		Excessive
	pounds of N-P₂O₅-K₂O per acre
Low	180-100-100	180-100-60	180-100-50	180-100-0		180-100-0
Medium	180- 50-100	180- 50-60	180- 50-50	180- 50-0		180- 50-0
Sufficient	180- 40-100	180- 40-60	180- 40-50	180- 40-0		180- 40-0
High	180- 0-100	180- 0-60	180- 0-50	180- 0-0		180- 0-0
Excessive	180- 0-100	180- 0-60	180- 0-50	180- 0-0		180- 0-0

COMMENTS (1, 4, 5, 6, 7, 9, 17, 19, 20, 25, 28, 63, 650, 652)

17 Preplant by broadcasting or at planting, 30 to 40 lbs nitrogen per acre banded by the row. Sidedress balance of nitrogen when the plants are 18 to 30 inches tall. Following soybeans or other legumes in rotation, reduce the nitrogen rate by 20 to 30 lbs nitrogen per acre.

19 If silage is grown for more than 2 years, increase potash rate to equal 200 lbs potash per acre after the first year.

20 If silage is grown for more than 1 year, increase potash rate to equal 100 lbs potash per acre after the first year.

25 Broadcast recommended phosphate and potash fertilizer, and magnesium-, zinc- and sulfur-containing fertilizer when recommended, during land preparation prior to planting.

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)

63 This is a zinc sensitive crop. Fertilizer should contain sufficient zinc to supply 5 to 10 lbs zinc per acre. (When soil test zinc is not excessive)

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)