. Better farming with Atlas farm powder, the safest explosive, the original farm powder. Explosives in agriculture. How to place charges under lateral rooted stump. "A" shows how to place charge when the cap and fuse are used and one charge is relied upon to remove the stump. "B" shows how to place three small charges under main roots when stump is to be removed with several charges fired by electric blasting machine. Use either method "A" or "B"—never both. Nature of Stumps, The three main types of root growth— tap root, semi-tap root, and lateral root—
. Better farming with Atlas farm powder, the safest explosive, the original farm powder. Explosives in agriculture. How to place charges under lateral rooted stump. "A" shows how to place charge when the cap and fuse are used and one charge is relied upon to remove the stump. "B" shows how to place three small charges under main roots when stump is to be removed with several charges fired by electric blasting machine. Use either method "A" or "B"—never both. Nature of Stumps, The three main types of root growth— tap root, semi-tap root, and lateral root—are shown plainly in the cuts on this and the next page. If the man who does the blasting has a mental picture of these general classes of root growth, he will know what to probe for and to expect when he investigates a stump. Hemlock and sassafras are examples of the laterals, white pine and most oaks are of the semi-tap root type, and southern pine and hickory of the tap root. A particular variety of tree seldom grows true to one type of root in all soils and locations, however, hence the judgment of the blaster and what his probing rod tells are doubly impor- tant. Hemlock, for instance, when it grows in the wet places it prefers, sel- dom sends roots down more than a foot or two. But hemlock trees that grow on hills, particularly in loose soil or among stones, will develop roots which very much resemble those of a normal white pine. The true tap root trees, which in soft, loose soil send down main roots almost as big as the trunk several feet, in harsher or poorer soil often de- velop roots split up and running out sideways like white pine trees do In open soil. It is well for every blaster to un- derstand the kind of roots his stumps are likely to have, taking Into considera- tion the variety of the tree and the nature of the soil. Hard ground and high level of standing water force more shallow root growth; open ground and dry ground permits deeper penetration. 42. H
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectexplosi, bookyear1919
