Nectarines (non-bearing) (Code #122)
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

PhosphorusRecommended Pounds N-P205-K20 per Acre

Low P

Coast: 0-30 lbs/A

Pied: 0-20 lbs/A

*-60-90*-60-60*-60-30*-60-0

Medium P

Coast: 31-60 lbs/A

Pied: 21-40 lbs/A

*-30-90*-30-60*-30-30*-30-0

High P

Coast: 61-100 lbs/A

Pied: 41-75 lbs/A

*-0-90*-0-60*-0-30*-0-0

Very High P

Coast: 100+ lbs/A

Pied: 75+ lbs/A

*-0-90*-0-60*-0-30*-0-0

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

Recommendations:

Recommended pH:6.0 to 6.5. See special lime recommendations below.
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

Comments:

Special Lime Recommendations:

Proper soil pH (6.0 to 6.5) is one of the keys to increasing tree survival and maximizing production. As lime does not readily move down through undisturbed soil, pre-plant soil preparation is the key to deriving the benefits of liming. Sites should be subsoiled in two directions (cross-checked) and lime should be turned in with deep plowing. Such pre-plant site preparation helps trees develop a large root system throughout the desired planting area.

Pre-plant Liming

Soil pH Recommendation, tons/A
Broadcast and
Surface Subsoil Plowed Deep Disk In
(0-6 in) (8-14 in)
below 5.5 below 5.5 3 1
5.5-6.0 below 5.5 2 1
5.5-6.0 5.5-6.0 1 1
5.5-6.0 6.0+ 0 1
6.0+ below 5.5 2 0
6.0+ 5.5-6.0 1 0
6.0+ 6.0+ 0 0
6.0+ but soil Ca less than 400 lbs/acre 0 1

Fact Sheet:

*Nitrogen fertilization

First-year trees should be fertilized three times during their first season as follows:

  1. March - (after ground has been settled by rain) broadcast evenly over a 3-foot diameter circle 1/2 to 1 pound of 10-10-10 per tree. Avoid placing fertilizer near trunk.
  2. Mid to late May - Broadcast evenly over a 3-foot diameter circle 1 pound of calcium nitrate or 1/2 pound of 34-0-0 or 1/3 pound of 46-0-0 per tree.
  3. Early to mid-July - Repeat application as made in May. Do not apply after AUGUST 15 since late application can increase susceptibility to cold injury.

Second-year trees should be fertilized three times during the season.

  1. Late-February (month before growth starts) - Apply 250 pounds of 10-10-10 fertilizer per orchard acre, broadcast evenly in a 5 to 6 feet wide band (2 to 3 feet wide on each side of trees).
  2. Mid-May - Apply 150 pounds of calcium nitrate or 75 pounds of 34-0-0 or 55 pounds of 46-0-0 per orchard acre in a 5 to 6 feet wide band.
  3. Early to mid-July - Repeat application as made in May. Do not apply after August 15.