Effects of Weed Control and Irrigation on Pecan (Carya illinoinensis) Growth and Yield

Author:

Patterson Michael G.,Goff William D.

Abstract

Pecan trees subjected to different weed control and irrigation regimes from planting in 1986 through 1993 produced similar yields when irrigated (400 kg/ha, 3-yr avg) and not irrigated (320 kg/ha, 3-yr avg). Trees receiving total chemical weed control produced over five times more pecans (735 kg/ha, 3-yr avg) than weedy trees (131 kg/ha, 3-yr avg). Trees receiving disking produced more pecans when irrigated (677 kg/ha, 3-yr avg) than when not irrigated (339 kg/ha, 3-yr avg). Growth rate, expressed as increase in tree stem diameter, decreased for trees in all treatments once trees began bearing.

Publisher

Cambridge University Press (CUP)

Subject

Plant Science,Agronomy and Crop Science

Reference10 articles.

1. Letters following this symbol are a WSSA-approved computer code from Composite List of Weeds, revised, 1989. Available from WSSA, 1508 West University Ave., Champaign, IL 61821-3133.

2. Common bermudagrass (Cynodon dactylon) interference in newly planted peach (Prunus persica) trees;Weller;Weed Sci.,1985

3. Common Bermudagrass (Cynodon dactylon) Competition in Cotton (Gossypium hirsutum)

4. Soil moisture relations and critical period of Cynodon dactylon (L.) Pers. (coastal bermudagrass) competition in conservation-tillage cotton (Gossypium hirsutum L.)

5. Summer and fall moisture stress and irrigation scheduling influence pecan growth and production;Stein;HortScience,1989

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