. The feeding of animals. ium. Their place asbases in organic structures is not fully understood. 51. Variations of plant ash.—The ash from differentplants and feeding-stuffs is by no means uniform in com-position and quantity, even in the same species or classof materials, although with the grains there is some degreeof uniformity in this respect. Certain factors cause varia-tions, such as species, stage of growth, fertility, the partof the plant, and changes due to manufacturing processes. 52. Variations of ash due to species.—Different speciesof plants, and consequently different feeding-st
. The feeding of animals. ium. Their place asbases in organic structures is not fully understood. 51. Variations of plant ash.—The ash from differentplants and feeding-stuffs is by no means uniform in com-position and quantity, even in the same species or classof materials, although with the grains there is some degreeof uniformity in this respect. Certain factors cause varia-tions, such as species, stage of growth, fertility, the partof the plant, and changes due to manufacturing processes. 52. Variations of ash due to species.—Different speciesof plants, and consequently different feeding-stuffs,are greatly unlike in their content of mineral figures of Table XI illustrate this fact: Table XI Mixed grasses . .Timothy grass . .English ray grassRed clover, in bloomSeradella, in bloomBuckwheat .... Potatoes Sugar-beets . . Turnips Carrots Winter wheat . . Oats Maize Field beans .... Niunber ofanalyses 106 9 11 113 3 17 59 1493211 110571519 Per centash COMPOUNDS OF NUTRITION 41 As a rule forage crops contain a higher percentage or ashthan do the grains. These variations pertain not alone tothe quantity of ash but to the proportions of compoundswhich it contains: Table XII. The Mineral Compounds op Plants and Feeding-Stuffs (Per Cent in the Dry Matter) V O -n •c o o o -a-i 9:3 o rfl ^ 3«i h-1 PH cc Mixed grasses . .Timothy hay . .Red clover in bloomWhite clover . . Alfalfa Buckwheat . . Roots Potatoes Sugar-beets . . .Fodder beets . . Turnips Carrots Grain Winter wheat . Oats Summer barleyMaize kernel Peas Field beans . . . . . . . . . . . .11 .50 .36 .06 .80 .19 .07 .66 .22 .15 .94 .54 .14 .63 .42 .12 .50 .30 .04 .64 .25 .04 .47 .16 .06 .65 .23 .06 .90 .05 .70 .35 .03 .93 .01 .04 .80 .06 .0
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