The Field book of Manures;
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Yet there is reason to believe, nay, it may be assumed as certain, that the phosphate and carbonate of lime, which bones contain so largely, are not without effect in promoting vegeta- tion. All our cultivated plants require and contain both phos- phoric acid and lime, and from the vegetables on which they feed, all animals derive the entire substance of their bones.
This same phosphoric acid and lime, therefore, must exist in the soil on which the plants grow, or they will neither thrive them-... selves nor be able properly to nourish the animals they are destined to feed. If a soil, then, be deficient in phosphate of lime or its constituents, it is clear that the addition of bones will benefit the after crops not only by the animal, but by the earthy matter, also, which they contain. And that such is the case, in many instances, there is good reason for believing. But that this can by no means account for the whole effect of bones, even supposing the soil to which they are applied to be, in every instance, deficient in phosphates, is clear from the fact that 260 lbs., (less than 6 bushels,) of bone dust per acre are sufficient to supply all the phosphates contained in the crops which are reaped during an entire four-shift rotation of turnips, barley, clover, and wheat.
What to read after The Field book of Manures;?
You can find similar books in the "Read Also" column, or choose other free books by Browne, D[aniel] J[ay], 1804- [from Old Catalog] to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Yet there is reason to believe, nay, it may be assumed as certain, that the phosphate and carbonate of lime, which bones contain so largely, are not without effect in promoting vegeta- tion. All our cultivated plants require and contain both phos- phoric acid and lime, and from the vegetables on which they feed, all animals derive the entire substance of their bones.
This same phosphoric acid and lime, therefore, must exist in the soil on which the plants grow, or they will neither thrive them-... selves nor be able properly to nourish the animals they are destined to feed. If a soil, then, be deficient in phosphate of lime or its constituents, it is clear that the addition of bones will benefit the after crops not only by the animal, but by the earthy matter, also, which they contain. And that such is the case, in many instances, there is good reason for believing. But that this can by no means account for the whole effect of bones, even supposing the soil to which they are applied to be, in every instance, deficient in phosphates, is clear from the fact that 260 lbs., (less than 6 bushels,) of bone dust per acre are sufficient to supply all the phosphates contained in the crops which are reaped during an entire four-shift rotation of turnips, barley, clover, and wheat.
What to read after The Field book of Manures;?
You can find similar books in the "Read Also" column, or choose other free books by Browne, D[aniel] J[ay], 1804- [from Old Catalog] to read onlineMoreLess
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