 | 1816 - 442 דפים
...particularly in Spring, must be of the; highest importance to the rising plant. And when the leaves are fully developed, the ground is shaded ; and any injurious influence, which in the summer might.be expected from too great a heat, entirely prevented : so that the temperature of the surface,... | |
 | William Thomas Brande - 1821 - 666 דפים
...particularly in spring, must be of the highest importance to the rising plant. And when the leaves are fully developed, the ground is shaded ; and any injurious...be sometimes a useful instrument to the purchaser •r improver of lands. " The moisture in the soil influences its ten ' " -lure; and the manner it... | |
 | William Thomas Brande - 1821 - 806 דפים
...particularly in spring, must be of the highest importance to the rising plant. And when the leaves are fully developed, the ground is shaded ; and any injurious influence, which in the summer might'be expected from too great a heat, entirely prevented : so that the temperature of the surface,... | |
 | John Claudius Loudon - 1825 - 1250 דפים
...square, and half an inch in depth ; and the temperature ascertained by a delicate thermometer. Thus the temperature of the surface, when bare and exposed...instrument to the purchaser or improver of lands." 2109. Tlte moisture in lite soil and sub-soil materially affects its temperature, and prevents, as... | |
 | John Ayrton Paris - 1831 - 582 דפים
...particularly in spring, must be of the highest importance to the rising plant. And when the leaves are fully developed, the ground is shaded, and any injurious...of the sun, affords at least one indication of the degree of its fertility ; and the thermometer may therefore be sometimes a useful instrument to the... | |
 | John Ayrton Paris - 1831 - 598 דפים
...particularly in spring, must be of the highest importance to the rising plant. And when the leaves are fully developed, the ground is shaded, and any injurious...of the sun, affords at least one indication of the degree of its fertility ; and the thermometer may therefore be sometimes a useful instrument to the... | |
 | John Claudius Loudon - 1831 - 1330 דפים
...surface, when bare and exposed to the ravs of the sun, affords at least one indication of the degree of its fertility ; and the thermometer may be sometimes...instrument to the purchaser or improver of lands." -159. The moisture in the sou and sub-soil materially affects their temperature, and prevents, as in... | |
 | John Claudius Loudon - 1835 - 1326 דפים
...square, and half an inch in depth ; and the temperature was ascertained by a delicate thermometer. Thus the temperature of the surface, when bare and exposed...of the sun, affords at least one indication of the degree of its fertility ; and the thermometer may be sometimes a useful instrument to the purchaser... | |
 | Sir Humphry Davy - 1836 - 458 דפים
...particularly in spring, must be of the highest importance to the rising plant. And when the leaves are fully developed, the ground is shaded, and any injurious...too great a heat, entirely prevented ; so that the ternperature of the surface, when bare and exposed to the rays of the sun, affords at least one indication... | |
 | Agricultural & Horticultural Society of India - 1837 - 336 דפים
...a very valuable instrument to the purchaser of lands. It must however be kept in mind that although the temperature of the surface, when bare and exposed to the rays of the sun, is considered to afford an indication of the soil's fertility, this can only be useful during the spring,... | |
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And when the leaves are fully developed, the ground is shaded, and any injurious influence, which in the summer might be expected from too great a heat, entirely prevented ; so that the temperature of the surface, when bare and exposed to the rays of... 
