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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... "
Annual Report of the Secretary of the Maine Board of Agriculture - Էջ 192
Maine. Board of Agriculture - 1873
Ամբողջությամբ դիտվող - Այս գրքի մասին

Annual Report of the Ohio State Board of Agriculture, Հատոր 27,Մաս 1872

Ohio State Board of Agriculture - 1873
...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,...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Report of the Commissioner of Agriculture for the Year ...

United States. Department of Agriculture - 1869
...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...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Annual Report of the Secretary of the Connecticut Board of Agriculture, Հատոր 5

Connecticut. State Board of Agriculture - 1872
...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...
Ամբողջությամբ դիտվող - Այս գրքի մասին

How Crops Grow: A Treatise of the Chemical Composition, Structure, and Life ...

Samuel William Johnson - 1868 - 378 էջ
...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,...
Ամբողջությամբ դիտվող - Այս գրքի մասին

How Crops Grow: A Treatise of the Chemical Composition, Structure, and Life ...

Samuel William Johnson - 1868 - 378 էջ
...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,...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Report of the Secretary of Agriculture ...

United States. Department of Agriculture - 1869
...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...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Report of the Commissioner of Agriculture

Commissioner of Agriculture - 1869
...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...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Report of the Commissioner of Agriculture for the Year 1868

Washington Government Pritning Office - 1869
...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...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Agricultural Textbook

John Wrightson - 1877 - 207 էջ
...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...
Ամբողջությամբ դիտվող - Այս գրքի մասին

How Crops Grow: A Treatise on the Chemical Composition, Structure, and Life ...

Samuel William Johnson - 1888 - 394 էջ
...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,...
Ամբողջությամբ դիտվող - Այս գրքի մասին




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