Elementary agriculture of Tennessee, with practical artithmetic elementaryagricu02hatc Year: 1909 10 ELEMENTARY AGRICULTURE on plants. Horses and cattle and hogs eat grain, cot- ton-seed meal, grass, hay, and fodder, and they grow on these just as the plants grow on the food they find in the soil and the air. Now, everywhere in the world there is decay going on. Plants that have been fed by the soil, left to them- selves, die and decay, a part of them passes into the air, and a part returns to the soil again, making it richer. The animals which have fed on other plants, use a part of what th
Elementary agriculture of Tennessee, with practical artithmetic elementaryagricu02hatc Year: 1909 10 ELEMENTARY AGRICULTURE on plants. Horses and cattle and hogs eat grain, cot- ton-seed meal, grass, hay, and fodder, and they grow on these just as the plants grow on the food they find in the soil and the air. Now, everywhere in the world there is decay going on. Plants that have been fed by the soil, left to them- selves, die and decay, a part of them passes into the air, and a part returns to the soil again, making it richer. The animals which have fed on other plants, use a part of what they eat in energy or work, and another part in maintaining their bodies; the re- HOW THE THREE KINGDOMS ARE RELATED. mainder of the food returns to the soil as manure, and in time the animals die, and their bodies slowly decay and a part of them returns to the soil, the same as in the case of plants. All these products of life, decaying leaves, twigs, fruits, weeds, corn and cotton stalks, trees, and the manure of animals as well as the bodies of all the animals that die, in time pass into the soil or the air. Such as remain in the soil become again food for
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