Pecans (bearing) - Home Garden (Code #109)
Soil Test RatingPotassium

Low K

Coast: 0-70 lbs/A

Pied: 0-120 lbs/A

Medium K

Coast: 71-170 lbs/A

Pied: 121-250 lbs/A

High K

Coast: 171-275 lbs/A

Pied: 251-400 lbs/A

Very High K

Coast: 275+ lbs/A

Pied: 400+ lbs/A

PhosphorusSee Comments

Low P

Coast: 0-30 lbs/A

Pied: 0-20 lbs/A

225225225225

Medium P

Coast: 31-60 lbs/A

Pied: 21-40 lbs/A

225225225225

High P

Coast: 61-100 lbs/A

Pied: 41-75 lbs/A

225225226226

Very High P

Coast: 100+ lbs/A

Pied: 75+ lbs/A

225225226226

Coast = Coastal Plain    Pied = Piedmont, Mountain, and Limestone Valley

Recommendations:

Recommended pH:6.0 to 6.5. If the pH is less than 6.0, see Lime Table B and the soil depth adjustment table that immediately follows the lime tables.
Magnesium:

If soil test Mg level is low and lime is recommended, use dolomitic limestone.

Coastal PlainLow: 0 - 60 lbs/acre Medium: 61 - 120 lbs/acre High: >120 lbs/acre
Piedmont Low: 0 - 120 lbs/acre Medium: 121 - 240 lbs/acre High: >240 lbs/acre
Other:See zinc (Zn) recommendation on Fact Sheet.

Comments:

225.

Per tree, broadcast 4 pounds of 10-10-10 for each inch of trunk diameter (measured 4½ feet above soil level) in March or April. If the trees are to produce a good crop terminal growth should be approximately 6 inches each year. If the desired terminal growth is not obtained, adjust the fertilizer rate accordingly.

226.

Per tree, broadcast 2½ pounds of 16-4-8 or 3 pounds of 12-4-8 for each inch of trunk diameter (measured 4½ feet above soil level in March or April. If the trees are to produce a good crop terminal growth should be approximately 6 inches each year. If the desired terminal growth is not obtained, adjust the fertilizer rate accordingly.

Fact Sheet:

Zinc nutrition is very important in pecan production. Zinc needs are best determined by analysis of leaf samples taken in July or early August. Mailing kits and instructions for taking samples are available at your County Extension Office. In the absence of a plant analysis, soil apply 1 pound of zinc sulfate to young trees and 3 to 5 pounds per larger trees each year.