Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 69American Philosophical Society, 1930 |
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Результати 1-3 із 52
Сторінка 74
... Horizon B from 30-100 cm .: a moist , loose , fine sandy , yellow- ish - gray layer ; in exposed places becomes ... horizon to be somewhat finer in texture than the A - horizon . The first one is a loam and the second a sandy loam ...
... Horizon B from 30-100 cm .: a moist , loose , fine sandy , yellow- ish - gray layer ; in exposed places becomes ... horizon to be somewhat finer in texture than the A - horizon . The first one is a loam and the second a sandy loam ...
Сторінка 79
... Horizon B from 35-100 cm . - a moist , light yellowish - brown layer of same texture and structure as A1 and A1⁄2 , pH = 5.3 Samples of each horizon were collected and analyzed under the serial numbers 101 , 102 and 103 respectively ...
... Horizon B from 35-100 cm . - a moist , light yellowish - brown layer of same texture and structure as A1 and A1⁄2 , pH = 5.3 Samples of each horizon were collected and analyzed under the serial numbers 101 , 102 and 103 respectively ...
Сторінка 82
... Horizon A from 0-20 cm . - a moist grayish - black humous layer , uniformly sandy'in texture , loose and friable , pH = 5.8 Horizon B1 from 20-25 cm . - a thin layer , peculiarly turkish red or orange red in color ; sandy texture ...
... Horizon A from 0-20 cm . - a moist grayish - black humous layer , uniformly sandy'in texture , loose and friable , pH = 5.8 Horizon B1 from 20-25 cm . - a thin layer , peculiarly turkish red or orange red in color ; sandy texture ...
Зміст
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THE AMERICAN PHILOSOPHICAL SOCIETY HELD AT PHILADELPHIA | 17 |
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