 | Ohio State Board of Agriculture - Agriculture - 1873 - 750 pages
...growth of roots. As to depth, Schubart has made the most satisfactory observations we possess on the roots of several important crops growing in the field. He separated them from'the soil by the following expedient: An excavation was made in the field to the depth of six feet,... | |
 | United States. Department of Agriculture - Agriculture - 1869 - 724 pages
...and length of roots of several important crops growing in the field, have been made by Schnbart, who separated them from the soil by the following expedient : "An excavation was made in a field to the depth of six feet, and a stream of water directed against the vertical wall of soil... | |
 | Connecticut. State Board of Agriculture - Agriculture - 1872 - 408 pages
...growth of roots. As to depth, Scbubart has made the most satisfactory observations we possess on the roots of several important crops growing in the field....the following expedient : an excavation was made in tbe field to the depth of six feet, and a stream of water was directed against the vertical wall until... | |
 | Samuel William Johnson - Agricultural chemistry - 1868 - 408 pages
...matter of no little difficulty. Schubart has made the most satisfactory observations we possess on the roots of several important crops, growing in the field....An excavation was made in the field to the depth of 6 feet, and a stream of water was directed against the vertical wall of soil until it was washed away,... | |
 | Samuel William Johnson - Agricultural chemistry - 1868 - 408 pages
...Schubart has made. the most satisfactory observations we possess on the roots of several import:mt crops, growing in the field. He separated them from...An excavation was made in the field to the depth of 6 feet, and a stream of water was directed against the vertical wall of soil until it was washed away,... | |
 | United States. Department of Agriculture - Agriculture - 1869 - 724 pages
...and length of roots of several important crops growing in the field, have l>een made by Schubart, who separated them from the soil by the following expedient: "An excavation was made in a field to the depth of six feet, and a stream of water directed against the vertical wall of soil... | |
 | Commissioner of Agriculture - 1869 - 728 pages
...Schubart, who separated them from the soil by the following expe dient: "An excavation was made in a field to the depth of six feet, and a stream of water directed against the vertical wall of soil until it was washed away, so that the roots of the plauts... | |
 | Washington Government Pritning Office - 1869 - 722 pages
...Schubart, who separated them from the soil by the following expe dient: "An excavation was made in a field to the depth of six feet, and a stream of water directed against the vertical wall of soil until it was washed away, so that the roots of the plants... | |
 | John Wrightson - Agriculture - 1877 - 234 pages
...formerly unable to reach. Schubart caused an excavation to be made in the field " to the depth of 6 feet, and a stream of water was directed against the vertical wall of soil until it was washed away, so that the roots of the plants growing in it were laid bare. The... | |
 | Samuel William Johnson - Agricultural chemistry - 1888 - 408 pages
...matter of no little difficulty. Schubart has made the most satisfactory observations we possess on the roots of several important crops, growing in the field....An excavation was made in the field to the depth of 6 feet, and a stream of water was directed ag;iinst the vertical wall of soil until it was washed away,... | |
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He separated them from the soil by the following expedient. An excavation was made in the field to the depth of six feet, and a stream of water was directed against the vertical wall of soil until it was washed away, so that the roots of the plants growing... 
