. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. Plate II. Northern Spy Tree D44, at seven years. Note the upright growth induced by severe cutting back. The strong upright scaf- fold branches shade each other and, even though the tree was cut back to two feet at .setting, the tree is fully as high-headed as the trees which were not cut back at setting. The severe heading back results in a dense top that must be thinned severely the next year. This type of pruning is not Please note that these images are extracted from scanned page images th
. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. Plate II. Northern Spy Tree D44, at seven years. Note the upright growth induced by severe cutting back. The strong upright scaf- fold branches shade each other and, even though the tree was cut back to two feet at .setting, the tree is fully as high-headed as the trees which were not cut back at setting. The severe heading back results in a dense top that must be thinned severely the next year. This type of pruning is not Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Agricultural Experiment Station. Amherst, : Massachusetts Agricultural Experiment Station, 1907-1974
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