Growing Pecans – Crop Nutrition 101

What you need to know about pecan fertilization, best practices, and more

Crop Nutrition Information for Growing Pecans (Carya illinoinensis):

  • Fertilization depends on soil test and leaf analysis

  • Soil tests should be taken in the year of establishment then every 2 years thereafter

  • The most accurate indicator of orchard fertility is the nutrient status of the leaves

  • Ideally leaf samples should be taken in July for analysis

Pecans
Pecan Harvest in Alabama

Key Nutrients:

  • Nitrogen(N) is the most limiting nutrient, and most likely to become deficient
  • Potassium (K) is the second most important nutrient in pecan production after N
  • Normal leaf concentrations should be: N 2.3 and 3.0%; K .75 – 1.75%
  • Pecan trees are heavy users of Zinc; it is essential for quality and yield
  • Zinc is often applied as a foliar spray to ensure quick uptake

Nutrient Requirements:

Nutrient balance is key to quality yields. Based on lbs/acre, these are the essential nutrients requirements (Wells & Conner, 2007)

Element Sufficiency Range

  • N(%) 2.5-3.0
  • P (%) 0.14-0.3
  • K(%) 1.3-2.5
  • Mg(%) 0.35-0.6 Ca(%) 1.3-1.75
  • S (%) 0.25-0.5
  • Zn (ppm) 50-100
  • Fe (ppm) 50-300 Mn (ppm) 100-800 B (ppm) 50-100
  • Cu (ppm) 6-30

Role of Nutrients:

Key quality and yield parameters can be affected by different nutrients. See how they can influence your harvest.

+ = improving    – = decreasing    +/- = different results, depending on the rate of nutrient applied

Yield: N++, P+, K+, Mg+, Ca+, S+ Quality: N+, P+, K++, Mg+, Ca+, S+

Q&A

  • During the growth of the crop, leaf tissue analysis are the best available tools to determine e whether the crop is taking up sufficient nutrients to be corrected by side dressing or foliar application if necessary. Leaves should be sampled for analysis between July and August as this is the time the nutrient in the leaves are most stable. 

  • Pecans love Zinc, and it is generally applied with a foliar application. Young and fastgrowing trees need Zinc in the spring at budbreak, continuing for three sprays in 2-3 week intervals. 

Need expert advice on your plant nutrition plan?

Proven in Pecans

Polysulphate®

Exceptional natural multi-nutrient fertilizer

Polysulphate Granular

0-0-14
+TE

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Nova

The perfect solution when your crops need a boost of water-soluble phosphorus and potassium

Nova PeKacid 0-60-20

0-60-20

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Agrolution pHLow

A dual-purpose water-soluble fertilizer that tackles water quality challenges and supplies high phosphorus plus zinc

Agrolution pHLow 11-45-11 Plus Zinc Starter

11-45-11

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Nova

A highly soluble alternative to magnesium nitrate with N-P-K, plus magnesium, sulfur, and boron.

Nova FLOW (5-10-20 +9Mg)

5-10-20

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Nova

Get your plants off to a quick start with MagPhos

Nova MagPhos 0-55-18+4.21Mg

0-55-18
+TE

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Nova

A unique cobalt and molybdenum foliar fertilizer to improve nitrogen efficiency and take your crops to the next level.

Nova ELEVATE (1.2 Co + 26 Mo)

0-0-0

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Nova

A dual-purpose, high phosphorus liquid fertilizer addresses water quality issues plus provides Zn for enhanced root growth

Nova PeKacid LQ 4-17-4 +Zn



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Agroblen Total

A controlled-release fertilizer provides a balanced supply of NPK plus S to deliver precision crop nutrition for up to six months

Agroblen Total Balanced 14-14-14 (5-6M)

14-14-14

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Agrocote

A premium quality potassium sulfate fertilizer that offers controlled release for up to 4 months

Agrocote SOP 0-0-48 (3-4M)

0-0-48

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