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Response Of Soybean Grown On A Claypan Soil In Southeastern Kansas To The Residual Of Different Plant Nutrient Sources And Tillage, D. W. Sweeney, Philip Barnes, Gary Pierzynski

Kansas Agricultural Experiment Station Research Reports

(Abstract only. Link to: http://newprairiepress.org/kaesrr/vol1/iss4/3/) Article is nearly identical toResponse of Soybean Grown on a Claypan Soil in Southeastern Kansas to the Residual of Different Plant Nutrient Sources and Tillage, previously published in Southeast Agricultural Research Center Reports 2015.

The residual effects of turkey litter and fertilizer amendments applied in previous years had little effect on the yield, yield components, and dry matter production of the following soybean crop grown in 2014.

Transcriptional And Post-Transcriptional Regulation Of Nodule-Specific Gene Expression In Soybean, Sajag Adhikari

Electronic Theses and Dissertations

Lateral roots and nodules are two important nutrient acquisition organs in soybean. The evolutionary origin of nodules from lateral roots has been highly hypothesized based on morphological similarities and genetic studies, but gene expression profiles during the formation of these organs have not been compared. In addition, the role of post-transcriptional gene regulation during nodule development has not been thoroughly explored. Bridging these knowledge gaps is crucial to develop genetic/biotechnological strategies to optimize nutrient acquisition and sustainable production of crops. To answer some of the outstanding questions about regulation of gene expression during nodule development, (i) global transcriptome analyses of …

Soybean Yield And Plant Response To Phosphorus Fertilization, Rebecca L. Helget

Electronic Theses and Dissertations

Phosphorus (P) is a key limiting nutrient for soybean production in South Dakota. Soil tests have been used as a baseline indicator for plant available P and fertilizer recommendations for over a century. Plant nutrient analysis may be used to complement a soil test as a way to validate fertilizer and management practices. Soybean nutrient sufficiency ranges have only been slightly adjusted since they were published in the 1960’s. The objectives of this study were to update the soil test P and soybean plant P sufficiency level in South Dakota and to recognize implications of improper plant sampling. We also …