Making Your Orchard Yield Nuts (and $) as Soon as Possible Pecan Orchard Establishment Richard Heerema Extension Pecan Specialist New Mexico State University
Goals Long-term goal—maximize economic returns over the life of the orchard. Short-term goal—reach economic production in the shortest time possible. The kids gotta eat and bank’s gotta get paid!
Important things I’m not going to dwell on today Site selection Pre-planting soil modifications Nursery tree size Potted vs. bareroot Pre-plant tree care Irrigation & nutrition
Genetics: Cultivar Precocity Precocity is the relative amount of time it takes for a tree to come into production. Highly precocious cultivars have a tendency to over-bear once they are mature alternate bearing poor nut quality
Genetics: Cultivar Precocity Non-Precocious ‘Bradley’ (‘Ideal’) ‘Burkett’ ‘Elliott’ ‘Hopi’ ‘Shawnee’ ‘Stuart’ ‘Tejas’ ‘Apache’ ‘Caddo’ ‘Choctaw’ ‘Desirable’ ‘Kanza’ ‘Kiowa’ ‘Lakota’ ‘Mandan’ ‘Nacono’ ‘Pawnee’ ‘Sioux’ ‘Success’ ‘Waco’ ‘Western’ Precocious ‘Apalachee’ ‘Barton’ ‘Cape Fear’ ‘Cherokee’ ‘Cheyenne’ ‘Chickasaw’ ‘Mohawk’ ‘Shoshoni’ ‘Wichita’ Very Precocious
Genetics: Rootstock Vigor Generally, high vigor and precocity are considered linked in pecan. High vigor: Cross-pollinated nuts Complete dichogamy Southern parentage
Genetics: Rootstock Vigor Higher VigorLower Vigor ‘Elliott’ ‘Moore’ ‘VC1-68’ ‘Wichita’ ‘Shoshone’ ‘Giles’ ‘Riverside’ ‘Stuart’ Moderate Vigor ‘Apache’ ‘Bradley’ ‘Burkett’ ‘Curtis’
Initially, yield should be proportional to tree planting density. Planting Density
Tree SpacingPlanting Density (trees/acre) Cumul. Yield (lbs/acre) 1 Incr. Planting & Est. Costs 1,2 ($/acre) Incr. Gross Return 1,2, 3 ($/acre) 20’ x 20’ $2,545$2,700 15’ x 30’973400$2,044$2,400 20’ x 30’732700$1,044$1,350 20’ x 40’552100$293$450 30’ x 30’481800N/A 1 Years Compared to 30’ x 30’ planting. 3 Assuming $1.50/lb inshell. *Hypothetical Example*
Orchard Floor Management Foshee et al, 1995
Orchard Floor Management
Smith et al., 2005
Orchard Floor Management
Training Two truths: Training young pecan trees is essential to growing a tree that is workable through the life of the orchard. Pruning young pecan trees delays cropping. Prune young pecan trees, but remove as little wood as possible!
Training Year 1 At Planting Year 2 Remove basal primary buds on central leader during dormant pruning. Photo courtesy of Monte Nesbitt Use a combination of winter and early-summer pruning to minimize the amount of wood cut.
Thank You!