The Theory of Horticulture; Or, An Attempt to Explain the Principal Operations of Gardening, Upon Physiological Principles
The book The Theory of Horticulture; Or, An Attempt to Explain the Principal Operations of Gardening, Upon Physiological Principles was written by author A J Andrew Jackson Downing Here you can read free online of The Theory of Horticulture; Or, An Attempt to Explain the Principal Operations of Gardening, Upon Physiological Principles book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Theory of Horticulture; Or, An Attempt to Explain the Principal Operations of Gardening, Upon Physiological Principles a good or bad book?
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Wet tenacious soils are found the most difficult to heat or to drain, and they will, therefore, be the most unfavourable to the operations of the gardener ; extremely light sandy soils, on the other hand, part with their moisture so rapidly, and absorb so much heat, that they are equally unfavourable ; and it is the light loamy soils, which are intermediate between the two extremes, that, as is well known, form the best soil for a gar- den. Situation is, however, of much more conse- quence than... soil, for the latter may be changed or improved, but a bad (that is, cold) situation is incur- able. Cold air is heavier than warm air, and, conse- quently, the stratum of the atmosphere next the soil will be in general colder than those above it. When, therefore, a garden is placed upon the level ground of the bottom of a valley, whatever cold air is formed upon its surface remains there, and surrounds the herbage ; and, moreover, the cold air that is formed upon the sides of low hills rolls down into the valley as quick- ly as it is formed.
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