Pecan Information

Links:

1. Sampling for Plant Tissue Analysis - Guide A-123 or,
2. Sampling Pecan Leaves for Analysis - Guide H-619
3. Horticulture Publication Listing has the following publications of interest.  They are in both HTML and PDF form.

1. Guide H-605: Training Young Pecan Trees
2. Guide H-607: Designing A Pecan Orchard
3. Guide H-608: Planting Pecan Trees
4. Guide H-613: Selecting and Storing Pecan Propagation Wood
5. Guide H-614: Selecting Soil and Site for a Pecan Orchard
6. Guide H-616: Juvenile and Adult Phases of Pecan Trees
7. Guide H-617: Interpreting Leaf Analysis and Deficiency Symptoms of Pecans
8. Guide H-618: Growth and Development of Pecan Nuts
9. Guide H-620: Storing Pecans
10. Guide H-621: Selecting and Judging Samples for Pecan Shows
11. Guide H-622: Flowering Habits of Pecan Trees
12. Guide H-623: Inlay Grafting Pecans
13. Guide H-626: Historical Background of Pecan Plantings in the Western Region
14. Guide H-627: Transplanting Mature Pecan Trees
15. Guide H-628: Orchard Floor Preparation for Mechanical Harvesting
16. Guide H-629: Pruning Mature Pecan Trees
17. Guide H-630: Buyers and Custom Shellers in the Western Pecan Growing Region
18. Guide H-631: The Pecan Handbook
19. Guide H-632: Weed Management in Pecans  (ONLY in PDF format)
20. Guide H-639: Pecan Varieties for New Mexico
21. Guide H-640: Measuring Soil Moisture in Pecan Orchards
22. Guide H-641: Using the NMSU Bulletin Board for Irrigation Scheduling and Heat Unit Accumulation in Pecan Orchards
23. Guide H-642: Fertigation for Pecan Orchards
24. Guide H-644: Leaching Requirements of Pecan and Fruit Trees
25. Guide H-645: Pecan Diseases and Their Controls
26. Guide H-646: Caring For Pecan Trees After Transplanting
27. Guide H-649: Managing Soils in Pecan Orchards
28. Guide H-650: Influence of Nut Development on Pecan Nut Casebearer Damage in Pecans
29. Circular 544: Pecan Orchard Management Schedule

Leaf Analysis Interpretation Tables:

Source:  Harris Laboratories

Source:  Storey, J. B. 1997. Nutrition. P. 1-2. In G. R. McKeachern and L. Stein (eds.). Texas Agricultural Extension Service Pecan Orchard Management Handbook.

 

Element	Nitrogen %	Phosphorus %	Potassium %	Magnesium %	Calcium %	Sodium %	Sulfur %
Optimum Range	2.50 - 4.00	0.15 - 0.30	0.75 - 1.25	0.30 - 0.60	0.70 - 3.00		0.20 - 0.25
Element	Zinc ppm	Manganese ppm	Copper ppm	Iron ppm	Boron ppm	Molybdenum ppm	Aluminum ppm
Optimum Range	80 - 500	40 - 300	10 - 30	50 - 300	20 - 45

Source:  O'Barr, R. O. and J. H. McBride.  1980.  Pecan leaf sampling for commercial growers.  Pecan South.  7:42-45.

 

Element	Nitrogen %	Phosphorus %	Potassium %	Magnesium %	Calcium %	Sodium %	Sulfur %
Optimum Range	2.50 - 3.00	0.12 - 0.30	1.00 - 2.00	0.30 - 0.60	0.70 - 2.00		0.18 - 0.25
Element	Zinc ppm	Manganese ppm	Copper ppm	Iron ppm	Boron ppm	Molybdenum ppm	Aluminum ppm
Optimum Range	50 - 150	50 - 300	8- 20	50 - 300	20 - 45	0.5 - 2.5

Source:  Sparks, D.  1975.  Nutrient removal in nut harvest.  Pecan South.  2:252-253.

Source:  Laboratory Consultants, Ltd.