Manures and the principles of manuring

Manures and the principles of manuring

Manures and the principles of manuringAgricultural Chemistry, like most branches of natural science, may be said to...
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Dhs. 49.99 AED
Dhs. 24.98 AED
SKU: gb-27274-ebook
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Author: Aikman, Charles Morton
Format: eBook
Language: English
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Manures and the principles of manuring

Manures and the principles of manuring

Dhs. 49.99 Dhs. 24.98

Manures and the principles of manuring

Dhs. 49.99 Dhs. 24.98
Author: Aikman, Charles Morton
Format: eBook
Language: English

Manures and the principles of manuring

Agricultural Chemistry, like most branches of natural science, may be said to be entirely of modern growth. While it is true we have many old speculations on the subject, they can scarcely be said to possess much scientific value. The great questions which had first to be solved by the agricultural chemist were,What is the food of plants? and,What is the source of that food? The second of these two questions more easily admitted of answer than the first. The source of plant-food could only be the atmosphere or the soil. As the composition of the atmosphere, however, was not discovered till the close of last century, and the chemistry of the soil is a question which is still requiring much work [Pg 4]ere we shall be in possession of anything like a full knowledge of it, it will be at once obvious that the very fundamental conditions for a solution of the question were awanting. The beginning, then, of a true scientific agricultural chemistry may be said to date from the brilliant discoveries associated with the names of Priestley, Scheele, Lavoisier, Cavendish, and Blackthat is, towards the close of last century. Early Theories on Source of Plant-food. While this is so, and while we must regard the early attempts made towards solving this question as being, for the most part, of little scientific value, it is not without interest, from the historical point of view, to glance briefly at some of these old interesting speculations. ......Buy Now (To Read More)

Product details

Ebook Number: 27274
Author: Aikman, Charles Morton
Release Date: Nov 16, 2008
Format: eBook
Language: English

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