. The feeding of animals. Feeds. 40 THE FEEDING OF ANIMALS ways: in organic combinations and as the inorganic salts of plant solutions, crystals and incrustations. Outside of phosphorus and sulfur, little is known of the relations to plant structure of the important ash elements, such as potassium, calcium, and magnesium. Their place as bases in organic structures is not fully understood. 51. Variations of plant ash.—The ash from different plants and feeding-stuffs is by no means uniform in com- position and quantity, even in the same species or class of materials, although with the grains the
. The feeding of animals. Feeds. 40 THE FEEDING OF ANIMALS ways: in organic combinations and as the inorganic salts of plant solutions, crystals and incrustations. Outside of phosphorus and sulfur, little is known of the relations to plant structure of the important ash elements, such as potassium, calcium, and magnesium. Their place as bases in organic structures is not fully understood. 51. Variations of plant ash.—The ash from different plants and feeding-stuffs is by no means uniform in com- position and quantity, even in the same species or class of materials, although with the grains there is some degree of uniformity in this respect. Certain factors cause varia- tions, such as species, stage of growth, fertility, the part of the plant, and changes due to manufacturing processes. 62. Variations of ash due to species.—^Different species of plants, and consequently different feeding-stuffs, are greatly unlike in their content of mineral matter. The figures of Table XI illustrate this fact: Table XI Mixed grasses Timothy grass English ray grass Red clover, in bloom Seradella, in bloom Buckwheat .... Potatoes Sugar-beets . . Turnips Carrots . . Winter wheat . . Oats ... Maize . . Field beans .... Per cent ash. 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 Jordan, Whitman H. (Whitman Howard), 1851-1931. New York, The Macmillan Company
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