Date of Award

2016

Publisher

North Dakota State University

Document Type

Thesis

Degree Awarded

Master of Science (MS)

Program

Soil Science

Department

Soil Science

College

Agriculture, Food Systems and Natural Resources

Faculty Advisor

Chatterjee, Amitava

Description

The first study was conducted during 2014 growing season at Glyndon, MN to evaluate the effectiveness of nitrification inhibitor or both urease and nitrification i.e. double inhibitors on reducing N losses in a rainfed spring-wheat (Triticum aestivum L.) system. Our findings suggested that amending urea with double inhibitors might be an effective strategy to reduce all possible N losses without compromising crop yields from urea-fertilized soils. The second study was conducted to understand the responses of spring-wheat to sulfate-based salinity stress under greenhouse and field conditions. Results from the greenhouse study indicated that the threshold soil ECe (EC using saturated-paste-extract method) affecting grain and straw yields were 8.2 and 2.9 dS m-1, respectively. However in fields, crop roots were subjected to heterogeneous salinity and the preferential root-growth in the least saline surface 0-60 cm soil layers resulted in greater salinity-tolerance to crops than that observed in a greenhouse study.

Rights

NDSU policy 190.6.2

Rights Link

https://www.ndsu.edu/fileadmin/policy/190.pdf

Author ORCID Identifier

0000-0003-2946-3538

Handle Identifier

https://hdl.handle.net/10365/27961

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