Amount of Nitrogen to Apply

Pecan orchards that have been out of production should be examined for spacing, soil drainage and overall nutrient condition, including soil and, especially, leaf analyses (in July). They most likely will need nitrogen amendments (see table). Often split applications in early and late spring achieve the best uptake. Some producers also apply a "booster" application of ~20 units of N at the initiation of the water stage in years of high production in the belief this can aid in nut filling. This is still under scientific investigation to determine if benefits outweigh costs.

Standard Rates of Nitrogen for Bearing Pecan Orchards
Natives	60 units N per acre
Bottomland orchards	90 units N per acre
Upland orchards	100 units N per acre

 

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