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Caliper measurements on nursery stock trees describe the size of the plant material being sold. The caliper measurement for nursery stock trees measuring four inches or less is taken six inches above the soil. Once a nursery stock tree's caliper exceeds four inches, the tree is measured twelve inches above the soil.
When stocking, a tree's basal area is measured. The basal area is a cross-sectional area of the stump taken about 4.5 feet (1.4 m) above the ground. [7] The equation for calculating the basal area of trees in a stand is Basal Area = 0.005454 DBH 2, where DBH is the diameter of the tree at the aforementioned measuring height. [7]
The size and physiological character of stock vary with the length of growing period and with growing conditions. Until the technology of raising containerized nursery stock bourgeoned in the second half of the twentieth- century, bareroot planting stock classified by its age in years was the norm.
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They are grown in plastic trays with many "cells," each of which contains a single liner plant. Liners will typically range in size from a 36 cell tray up to a 288 cell tray. The most common size used in commercial nurseries is between 50 and 72 cells. The term "liner", is typically used for perennial, ornamental, and woody seedlings.
This pack of 720 wipes from Honest Company is only $34, or $10 off its regular price. You can keep these wipes stored everywhere you'll need them: the nursery, the kitchen, the bathroom, the car, etc.