Effect of Hedgerow Orientation on Maize Light Interception and Yield in Black Locust Alleys

Ssekabembe, C. K.; Henderlong, P. R.; Larson, M. M.

doi:10.1080/01435698.1997.9752966

International Tree Crops Journal

1997

DOI: 10.1080/01435698.1997.9752966

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Effect of Hedgerow Orientation on Maize Light Interception and Yield in Black Locust Alleys

C. K. Ssekabembe¹,

P. R. Henderlong

M. M. Larson

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“…An understanding of the spatial extent of the competitive zone aids in the design of alley crop plantations. Microenvironmental alley modifications induced by the tree crop vary across short spatial scales, creating an edge effect that affects alley crop productivity (Ssekabembe et al, 1997). In Australia, the competition zone for maritime pine ( P. pinaster Soland., non Ait.)…”

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Effect of Loblolly Pine Root Pruning on Alley Cropped Herbage Production and Tree Growth

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Belesky³

2009

Agronomy Journal

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Tillage to disrupt (prune) tree roots is an intensive practice which could improve herbage productivity at the crop-tree interface by reducing competition for water. We compared tillage eff ects on 9-to 11-yr-old loblolly pine (Pinus taeda L.) growth and herbage yields of annual ryegrass (Lolium multifl orum Lam.) and pearl millet [Pennisetum glaucum (L.) R. Br.] on a fragipan soil in Arkansas. Alley crops were rotationally grown in a 9.7-m wide alley (main plot) between bordering trees on one of three tillage treatments: control (surface tillage), rip followed by surface tillage, and trench plus root barrier followed by surface tillage. Topsoil water in May through September, herbage mass, and nutritive value were measured for each crop for 2 or 3 yr in three subplots systematically arrayed (north, middle, and south) across the alley. Diameter at breast height (DBH, measured 1.3 m above soil surface) and height of border trees were measured annually. Trenching resulted in a more uniform distribution of topsoil water among subplots compared to the other tillage treatments. Annual ryegrass yield did not show a tillage response, but pearl millet yielded more herbage in the rip (6760 kg ha -1 in 2003) and trench (3300 kg ha -1 in 2005) than the control treatment (4990 and 1260 kg ha -1 for 2003 and 2005, respectively). Ripping and trenching signifi cantly reduced loblolly pine DBH and height compared to the control. Similarly confi gured alley cropping practices probably have little potential for annual herbage production even with root pruning.

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Effect of Loblolly Pine Root Pruning on Alley Cropped Herbage Production and Tree Growth

Burner

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Belesky³

2009

Agronomy Journal

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Canopy management practices in mulberry: impact on fine and coarse roots

et al. 2017

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Effect of Hedgerow Orientation on Maize Light Interception and Yield in Black Locust Alleys

Cited by 2 publications

References 11 publications

Effect of Loblolly Pine Root Pruning on Alley Cropped Herbage Production and Tree Growth

Effect of Loblolly Pine Root Pruning on Alley Cropped Herbage Production and Tree Growth

Canopy management practices in mulberry: impact on fine and coarse roots

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