Date of Award:

5-1941

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Plants, Soils, and Climate

Department name when degree awarded

Agriculture

Committee Chair(s)

D. W. Thorne

Committee

D. W. Thorne

Committee

Stewart Williams

Abstract

Recent reports from many parts of the United States indicate that the so-called zinc-deficiency disease is wide spread. It affects some varieties of trees in some areas and all varieties in other areas, and occurs from Florida westward to the Pacific coast and northward to the Canadian line. Although the disease is more prevalent in trees, it is also known to affect annual plants.

A recent survey of Utah orchards shows a wide-spread occurrence of little-leaf, a zinc deficiency disease, in fruit trees. The disease was found to be common on the upper sandy soils between Ogden and Salt Lake City, Utah, on soils that have developed largely from gneiss deposits in the adjoining mountains. In several cases the afflicted trees have shown definite response to zinc treatments indicating possible relationships between parent materials, soil characteristics, and zinc deficiencies.

No information is available concerning the total or available zinc in Utah soils or the factors associated with its occurrence. Data concerning the relations of total and available zinc to soil characteristics and to geological parent material should be a distinct aid in predicting the future spread of little-leaf disease, as well as in assisting in its control.

Checksum

7be42f09520c442b09042b62ba2fbb0f

Download

Included in

Soil Science Commons

Share

COinS

Copyright for this work is retained by the student. If you have any questions regarding the inclusion of this work in the Digital Commons, please email us at .