SOIL TEST INFORMATION SHEET NO. F-510

Prepared by Extension Horticulturist John Pyzner

Blackberries

1.	Rates are based on 100 feet rows.

2.	Apply 3-5 pounds N per year split between two applications.  Apply the first in late February or early March, second in June after fruiting and pruning.  A third application of an additional pound of N may be applied I July for plantings which are cut back to stubble.

3.	Phosphorous and potassium rates should be applied according to soil test information.

4.	For more information on blackberry culture request publication 1553, Growing Blackberries for Pleasure and Profit.”

5.	Contact your county agent for additional information and help in your fertilization program.  The agent also receives a copy of this report for the parish office files.