Article Figures & Data
Figures
- 1.
Zelkova and mulberry trees were planted in 12 rows of 6 each at Davis, California.
- 2.
Effect of root-control treatments and sidewalks on growth of zelkova trees. Interaction between root-control and sidewalks significant at P = .05; sidewalk effect significant at P = .01.
- 3.
Interacting effects of sidewalks and soil amendment on growth of zelkova trees, significant at P = .05.
- 4.
Interacting effects of root-control treatments and soil amendment on growth of fruitless mulberry trees, significant at P = .001.
Tables
Soil Amended Soil Not Amended Control-tree planted with no provision for root control 2 trees by walk 2 trees by walk 2 trees no walk 2 trees no walk Deeproot-tree planted in rigid plastic control planter with sloping sides to direct roots to deeper layers 2 trees by walk 2 trees by walk 2 trees no walk 2 trees no walk Polyethylene-vertical sides of 30-inch square planting hole lined with 5-mil sheet plastic 2 trees, by walk 2 trees by walk 2 trees, no walk 2 trees, no walk Well-tree planted with root collar 18 inches below soil surface in well 16 inches in diameter 2 trees by walk 2 trees by walk 2 trees, no walk 2 trees, no walk
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