 Mass., and presented to the College museum by Mr. BH Averell. Prof. Stockbridge, last fall, washed out a root of common clover, one year old, growing in the alluvial soil near the Connecticut River, and found that it descended perpendicularly to the depth...  Practical Farm Drainage: Why, when and how to Tile Drain - 第 16 頁Charles Gleason Elliott 著 - 1882 - 92 頁完整檢視 - 關於此書
 | Massachusetts - 1875 - 692 頁
...Westtield, Mass., and presented to the College museum by Mr. BH Averell. Prof. Stockbridge, last fall, washed out a root of common clover, one year old,...descended perpendicularly to the depth of eight feet. Mr. Mechi, of Tiptree Hall, England, tells us that the reason clover is usually so short-lived, is... | |
 | State Pomological Society of Michigan - 1875 - 592 頁
...Westfield, Mass., and presented to the College Museum by Mr. BH Averell. Prof. Stockbridge, last fall, washed out a root of common clover, one year old,...descended perpendicularly to the depth of eight feet. Mr. Mechi, of Tiptree Hall, England, tells us that the reason clover is usually so short-lived, is... | |
 | 1890 - 604 頁
...which in a rich tenacious earth extend but 2 or 3 feet, have been traced to a length of 10 or even 15 feet in a light sandy soil. Roots of clover, when...that it descended perpendicularly to the depth of 8 feet. Lucerne roots are stated to reach a depth of 20 and even 30 feet. Alderman Nechi in England... | |
 | Charles Gleason Elliott - 1908 - 218 頁
...of clover, when growing in a rich and mellow soil, extend both laterally and vertically. Professor Stockbridge washed out a root of common clover, one...perpendicularly to the depth of eight feet. Lucern roots are said to reach a depth of twenty, and even thirty, feet." Authentic examples of this character might... | |
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