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Pioneering Your Pecans!

Founded in 2016, the American Pecan Council is dedicated to showcasing the many benefits, uses and remarkable history of America’s native tree nut.

Soil Health & Mineral Nutrition

Promoting healthy nutrition for your pecan orchard can seem taxing at times. However, when your trees are receiving optimal nutrition the quality and yield of you’re crop are most satisfying. There are many different types of minerals, macro- and micro-nutrients that are beneficial to your pecan trees development. If you believe your orchard is deficient in these minerals there are ways to diagnosing nutrient disorders in pecan trees. Thanks to agricultural science, we now know that determining the correct dosage relies on many factors. The condition of your soil, soil type (structure & texture), analyzing the soil, using the correct form and type of chemicals for your soil can help you answer these questions. Another tool that will assist in maximizing your pecan orchards nutritional needs can be done by conducting leaf analysis seasonally. This will determine if your current fertilization and mineral nutrition treatments are effective or need to be modified.

Resources:
Pecan Tree Crowding
Pecan Orchard Fertilization
Pecan Orchard Fertilization Southwest
Fertilizer and Cultural Recommendations for Pecan Trees
Diagnosing Nutrient Disorders in Pecan Trees
ESSENTIAL MICRO-NUTRIENTS OF PECAN
Manganese Deficiency in Pecan
Optimal Manganese Nutrition Increases Photosynthesis of Immature Pecan Trees
Nitrogen and Zinc
Nitrogen
Correction of Zinc Deficiency in Pecan
Soil-application of Zinc-EDTA Increases Leaf Photosynthesis of Immature ‘Wichita’ Pecan Trees
Zinc Nutrition of Pecans Growing in Alkaline Soil
Leaf Levels of Zinc Required for Maximum Nut Yield and Vegetative Growth in Pecan
Zinc USDA
How To Add Zinc To Pecan Trees
Pecan Leaf Elemental Sufficiency Ranges and Fertilizer Recommendations

ARIZONA PECAN Research
NUTRIENT MANAGEMENT FOR ARIZONA PECANS FOR PECANS

University of Arizona
James Walworth
Extension Specialist and Professor of Soil Science
University of Arizona

Joshua Sherman
Horticulturist / Tree & Vine Physiology
Area Agent, University of Arizona

Soil Health

 

Pecan trees in their native habitat are found close to rivers and as such they only like alluvial river soils, with good drainage conditions. However, these nut trees are only limited by the soil in which they are grown. Pecan trees have had to adapt to various soil conditions. The soil in the current pecan growing regions are limited primarily by their parent material to which they are derived and the elements that are available to promote their growth.
Before considering a new site for an orchard, one should consider having their soil tested to ensure proper orchard development and to identify any potential problems like poor drainage, salt toxicity issues, fungal or bacterial diseases, and / or problematic pest issues. Knowing about your soil type and condition can help you to determine the types of chemicals, the quantity of chemicals needed, and what chemicals are better suited for your soil type. Another benefit to soil analysis is that you can better determine how much water your orchard will need.

List of Recommended Labs
Salinity Management and Soil Amendments for Southwestern Pecan Orchards
Soil Fertility and Soil testing guideline for Arizona Cotton
Using gypsum and other calcium amendments in southwestern soils
PLANT PATHOLOGY EXTENSION LAB SAMPLE SUBMISSION FORM
Soil-Pecan Relationships
Pecan Budget – Costs per acre to Produce Pecans without Weed Seeker
Not all soils are created equal.
Visualizing Soil Properties: Dispersion and Flocculation
Soil and Soil Dynamics
Soil Basics: Soil Profiles
Water Movement in Soil
Minerals in soil and pond water
How Soil Tests are Analyzed
How to Collect a Soil Sample for Lab Analysis
Saline and Sodic oils – the difference
Soil Infiltration: Soil porosity testing
Unavailability of Water in Saline Soils
What is the Sodium Adsorption Ratio (SAR)?
National Soil Survey Handbook (NSSH)
Soil Survey of Arizona PDFs USDA
Soil Survey by State PDFs USDA
Problem Soils
Recommended Labs
Soil Sampling and Analysis

University of Arizona
James Walworth
Extension Specialist and Professor of Soil Science
University of Arizona

Leaf Analysis

 

Leaf analysis can tell you a lot about your orchards nutritional deprivation or overall condition and can also give you a better idea on what your orchard needs in the next oncoming growing season. Leaf analysis can help you to determine if your trees have a nutrient disorder, and help you to determine the effectiveness of your fertilizer program. If you feel you need help with providing your orchard with proper nutrition, feel free to contact your local University of Arizona Cooperative Extension Agent or Specialist, or Certified Crop Consultant.

Leaf Sampling Guide with Interpretation and Evaluation for Arizona Pecan Orchards
How To determine if pecan trees have enough nutrients
How to take a pecan leaf test / pecan leaf sampling
Water management in pecan orchards
Leaf sampling guide with interpretation for Arizona pecan orchards

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In The News

Western Pecan Production Short Course

Three full days in the “classroom” with lectures to cover horticulture, pest control, economics, and related aspects of pecan production from start to finish, plus a full-day field trip to pecan farms. Registration includes binders with print-outs of presentation...

Karin Davidson Pecan Food Fantasy

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WPGA Scholarship Foundation

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Wester Pecan Growers Association old address was www.westernpecan.org but now it is westernpecan.org. 

the annual western pecan growers association conference will not be held on March 3 – march 5th 2020 

https://www.google.com/search?q=western+pecan+growers+association&oq=western+pecan+&aqs=chrome.0.69i59j69i57j0j69i60l3.9663j0j4&sourceid=chrome&ie=UTF-8

 

https://www.google.com/search?q=western+pecan+growers+conference+2020&oq=western+pecan+growers+conference+2020&aqs=chrome.0.69i59.3807j0j4&sourceid=chrome&ie=UTF-8