- For establishment of grapes, apply recommended amounts of lime, phosphate and potash to the entire area and incorporate into the soil before setting. Broadcast all nitrogen and maintenance applications of lime, phosphate and potash under the vines.
- Apply N in the early spring at the rate of one-tenth (0.1) pound of actual N per vine for vines of medium For weaker vines, apply two-tenths (0.2) pound N per vine.
- When lime is recommended, use dolomitic limestone to supply If lime is not needed but soils test less than 40 pounds of magnesium per acre or magnesium deficiencies occur, apply magnesium sulfate (Epsom Salts) at the rate of 16 pounds salt in 100 gallons water. Make two applications – the first immediately after bloom and the second two weeks later.