Document Type

Thesis - Open Access

Award Date

1957

Degree Name

Master of Science (MS)

Department

Agronomy

Abstract

The nitrogen status of South Dakota soils was once very high, but due to our intensive type of farming, the supply of this essential element is rapidly being exhausted. It has been estimated that thirty to forty percent of the original nitrogen content has been lost as a result of farming, erosion, and various other factors. This continuous removal of nitrogen, primarily through cropping has caused pronounced and widespread nitrogen deficiency symptoms to show up in many areas of the state. These visual symptoms and the resulting low crop yields have aroused considerable interest in the use of nitrogen fertilizer. As the use of fertilizer increases, more attention should be placed on methods of obtaining maximum benefits from this applied nitrogen. It is the purpose of this study to investigate the effect of various fertilizer practices on corn and small grain production southeastern and east central South Dakota. Some of the practices considered in this study were time of application, carry-over, carriers, and crop residue utilization.

Library of Congress Subject Headings

Fertilizers
Manures

Format

application/pdf

Number of Pages

50

Publisher

South Dakota State University

Rights

No Copyright - Non-Commercial Use Only
http://rightsstatements.org/vocab/NoC-NC/1.0/

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