Theses and Dissertations
ORCID
https://orcid.org/0009-0008-5051-4612
Advisor
Dhillon, Jagmandeep
Committee Member
Bheemanahalli, Raju Rangappa
Committee Member
Bryant, Corey
Committee Member
Reed, Vaughn
Committee Member
Larson, Erick
Date of Degree
5-10-2024
Original embargo terms
Embargo 1 year
Document Type
Graduate Thesis - Open Access
Major
Plant and Soil Sciences (Agronomy)
Degree Name
Master of Science (M.S.)
College
College of Agriculture and Life Sciences
Department
Department of Plant and Soil Sciences
Abstract
A field study was conducted in 2022 and 2023 at two different locations in Mississippi (MS) implementing a split-plot design. Nitrogen (N) rates as the main plot including 0 (control), 90, 180, 269 kg N ha-1 at Starkville and 224 kg N ha-1 at Stoneville. The subplot was seven treatments, including a no biostimulant (check) and six commercially available microbial biostimulants (Source Corn®, Envita®, iNvigorate®, Blue N®, Micro AZTM, and Bio level phosN®) applied either as foliar at V4-V5 growth stages or in-furrow at planting. Only N rates positively affected grain yield and nitrogen use efficiency at all site years. The agronomic optimum N rate (AONR) differed across all site years, ranging from 202, 128, and 166 kg N ha-1 at Starkville 2023 and Stoneville 2022 and 2023. In summary, microbial biostimulants within this study showed minimal to no effect on corn grain yield and all other tested parameters.
Recommended Citation
Gajula, Praveen, "Evaluating the impact of biostimulants at variable nitrogen rates in Mississippi corn production systems" (2024). Theses and Dissertations. 6109.
https://scholarsjunction.msstate.edu/td/6109