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Walnut Planting Procedure

Things of interest about equilateral or regular hexagons:

S/a2 = 2.5981
S/R2 = 2.5981
S/r2 = 3.4641
R/a = 1.0000
R/r = 1.1547
a/R = 1.0000
a/r = 1.1547
r/R = 0.8660
r/a = 0.8660

Establishing a modern walnut grove.(See the next 4 illustrations.) Plant for the final grove but take out profitable stems (from the triangular areas as shown) at mid term when the canopy begins to close, releasing the final-crop trees.

The following procedure seems complicated. Take a few minutes; it lasts for 100 or more years! ... time well-spent.
Initial planting pattern. If planted as indicated in the text, this pattern yields 66 trees per acre.

  1. Row 1
    1. Plant first tree 25.98 feet from the starting line.
    2. Plant next tree 51.96 feet from the first tree.
    3. Continue, planting each tree 51.96 feet from the preceding tree to the end of the row.
  2. Row 2
    1. Plant first tree at starting line, 15 feet from the center line of Row 1
    2. Plant next tree 17.32 feet from the preceding tree.
    3. Plant the next tree 34.64 feet from the preceding tree.
    4. Repeat 2 and 3 to the end of the row.
  3. Row 3
    Crown closure just before thinning. Five sided crowns represent permanent trees (48 per acre) while triangular crowns represent the additional trees (18 per acre) that will be removed when they reach 12 inches dbh.

    Crown closure just after removal of the additional trees. Crowns on the permanent trees will now expand into the hexagonal pattern in the next figure.

    Use the same procedure as for Row 1, but plant the first tree 15 feet from the center of Row 2.

  4. Row 4 Same procedure as in Row 1, but plant the first tree at the starting line, 15 feet from the center line of Row 3.
  5. Row 5
    1. Plant first tree 8.66 feet from the starting line, 15 feet from the center line of Row 4
    2. Plant next tree 17.32 feet from the preceding tree.
    3. Plant the next tree 34.64 feet from the preceding tree.
    4. Continue 2 and 3 as in Row 2.
  6. Hexagonal crown pattern of the permanent trees that will develop after the thinning (removal of triangular tree crowns) and exist until the end of the productive life of the stand.

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