 | Agriculture - 1862 - 600 pages
...food that exists in the soil is amply nffident to provide for the uses of the plant and to prono« its luxuriant growth. We cannot, in fact, materially alter...composition of our soils, taking the whole bulk of -''1 into consideration, by any amount of manure, nor can we deteriorate, chemically speaking, the... | |
 | Royal Agricultural Society of England - Agriculture - 1862 - 626 pages
...superphosphate mixed up with a large body of soil — say 1 8 inches deep — would have been of 1 ittle service for such an object. When once the roots are...land by the most exhaustive crops, if we regard the soil as a whole. In reality we manure only a small portion of the soil ; and in ordinary good farm... | |
 | Royal Agricultural Society - 1862 - 624 pages
...quantity of guano or superphosphate mixed up with a large body of soil—say 18 inches deep—would have been of little service for such an object. When...land by the most exhaustive crops, if we regard the soil as a whole. In reality we manure only ;i small portion of the soil; and in ordinary good farm... | |
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... service for such an object. When once the roots are fairly established, with their various fibres drawing nourishment from the soil, and their leaves spread to the sun and air, and thus the apparatus for taking in food on all sides is formed, the... 