Field Management And Crop Rotation;
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Such losses are unavoidable. It is possible to conceive of a scheme of agriculture and the handling of food products and waste products from animal and human bodies wherein the elements of plant food taken from the soil by crops would be almost entirely recovered and returned to the soil, thus balancing the subtraction from the original plant food supplies of the soil. But such a scheme of agriculture is mainly imprac- tical under American conditions of life on account of leaching, soil washing..., fermentation of manures, and the waste through city sewers. The practical thing to remember is, that losses of plant food do occur that are unavoidable. With the ex- ception of nitrogen, man has as yet discovered no means for adding to nature's supply of plant food in the soil other than to mine the desired forms of plant food from one region of Mother Earth and transfer the materials to his agricultural soil areas.
FERTILIZERS AND PERMANENT AGRICULTURE 261 Fertility Not Inexhaustible. There is no such thing as soil of inexhaustible fertility.
What to read after Field Management And Crop Rotation;?
You can find similar books in the "Read Also" column, or choose other free books by Parker, Edward Cary, 1881- [from Old Catalog] to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Such losses are unavoidable. It is possible to conceive of a scheme of agriculture and the handling of food products and waste products from animal and human bodies wherein the elements of plant food taken from the soil by crops would be almost entirely recovered and returned to the soil, thus balancing the subtraction from the original plant food supplies of the soil. But such a scheme of agriculture is mainly imprac- tical under American conditions of life on account of leaching, soil washing..., fermentation of manures, and the waste through city sewers. The practical thing to remember is, that losses of plant food do occur that are unavoidable. With the ex- ception of nitrogen, man has as yet discovered no means for adding to nature's supply of plant food in the soil other than to mine the desired forms of plant food from one region of Mother Earth and transfer the materials to his agricultural soil areas.
FERTILIZERS AND PERMANENT AGRICULTURE 261 Fertility Not Inexhaustible. There is no such thing as soil of inexhaustible fertility.
What to read after Field Management And Crop Rotation;?
You can find similar books in the "Read Also" column, or choose other free books by Parker, Edward Cary, 1881- [from Old Catalog] to read onlineMoreLess
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