The book The Field book of Manures; was written by author Browne, D[aniel] J[ay], 1804- [from Old Catalog] Here you can read free online of The Field book of Manures; book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Field book of Manures; a good or bad book?
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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.
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