@article{bloszies_reberg-horton_heitman_woodley_grossman_hu_2022, title={Legume cover crop type and termination method effects on labile soil carbon and nitrogen and aggregation}, volume={114}, ISSN={["1435-0645"]}, url={https://doi.org/10.1002/agj2.21022}, DOI={10.1002/agj2.21022}, abstractNote={Growers use cover crops to provide nutrients for crops and build soil organic matter. Termination methods may alter the effects of cover crops on soil labile C and N. We examined how two cover crops and three termination methods affected soil microbes, soil aggregates, and C and N pools in an organic grain system. We compared crimson clover (Trifolium incarnatum L.), hairy vetch (Vicia villosa Roth), and a control together with disking, mowing, or a roller-crimper for effects on hot-water-extractable carbohydrates, microbial biomass C (MBC) and N, potentially mineralizable C and N, and aggregation (quantified by mean weight diameter, MWD). Disking comprised flail mowing plots and then cultivating. Roller-crimping occurred via a roller with blades. Vetch soil contained 14% higher MBC than no cover crop pre-termination, possibly because of enhanced rhizodeposition. Planting crimson clover resulted in 44% higher MBC than no cover crop a week after termination, likely due to its higher biomass C:N ratio. Disking decreased MWD relative to flail mowing in no cover crop soils at four weeks after termination across both years at 0–5 cm depth. In addition, MWD was lower under crimson clover than under no cover crop for both the flail mowed and roller-crimped treatments at four weeks after termination across both years from 0–5 cm. This is possibly due to enhanced desiccation of the soil in bare plots after termination. Our results indicate that quantity and quality of biomass of different legume species, rather than termination methods, dominated impacts on labile C. Disking lowered aggregation in non-planted plots versus flail-mowing Hairy vetch raised mineralizable N versus crimson clover or no cover crop, even before termination Mowing cover crops did not increase soil microbial activity compared to rolling This article is protected by copyright. All rights reserved}, number={3}, journal={AGRONOMY JOURNAL}, publisher={Wiley}, author={Bloszies, Sean A. and Reberg-Horton, S. Chris and Heitman, Joshua L. and Woodley, Alex L. and Grossman, Julie M. and Hu, Shuijin}, year={2022}, month={Apr} } @article{jiang_deng_bloszies_huang_zhang_2017, title={Nonlinear response of soil ammonia emissions to fertilizer nitrogen}, volume={53}, number={3}, journal={Biology and Fertility of Soils}, author={Jiang, Y. and Deng, A. X. and Bloszies, S. and Huang, S. and Zhang, W. J.}, year={2017}, pages={269–274} } @article{huang_lv_bloszies_shi_pan_zeng_2016, title={Effects of fertilizer management practices on yield-scaled ammonia emissions from croplands in China: A meta-analysis}, volume={192}, journal={Field Crops Research}, author={Huang, S. and Lv, W. S. and Bloszies, S. and Shi, Q. H. and Pan, X. H. and Zeng, Y. J.}, year={2016}, pages={118–125} } @article{xing_wang_zhou_bloszies_tu_hu_2015, title={EFFECTS OF NH4+- N/NO3--N RATIOS ON PHOTOSYNTHETIC CHARACTERISTICS, DRY MATTER YIELD AND NITRATE CONCENTRATION OF SPINACH}, volume={51}, ISSN={["1469-4441"]}, DOI={10.1017/s0014479714000192}, abstractNote={SUMMARY Most plants prefer nitrate (NO 3 − –N) to ammonium (NH 4 + –N). However, high NO 3 − –N in soil and water systems is a cause of concern for human health and the environment. Replacing NO 3 − –N in plant nutrition regimes with an appropriate amount of NH 4 + –N may alleviate these concerns. The purpose of this study was to evaluate the effects of different NH 4 + –N/NO 3 − –N ratios on chlorophyll content, stomatal conductance, Rubisco activity, net photosynthetic rate, dry matter yield and NO 3 − –N accumulation in spinach grown hydroponically. The NH 4 + –N/NO 3 − –N percentage ratios were 0:100 (control), 25:75, 50:50, 75:25 and 100:0. Chlorophyll a and b, total chlorophyll, stomatal conductance, initial activity and activation state of Rubisco and net photosynthetic rate in spinach leaves were all reduced by increased NH 4 + –N/NO 3 − –N ratios. Significant correlation existed between these measurements. However, no statistical differences in dry matter yield were revealed between the 0:100 and 25:75 treatments. Leaf nitrate concentrations were reduced by 38% at the 25:75 treatment relative to the 0:100 treatment. These findings suggest that lowering the relative proportion of NO 3 − –N in fertilizer could effectively reduce NO 3 − –N contents in leafy vegetables without decreasing their yields.}, number={1}, journal={EXPERIMENTAL AGRICULTURE}, author={Xing, Suzhi and Wang, Jianfei and Zhou, Yi and Bloszies, Sean A. and Tu, Cong and Hu, Shuijin}, year={2015}, month={Jan}, pages={151–160} } @article{gong_wen_bloszies_li_wei_yang_shi_wang_2014, title={Comparative effects of NaCl and NaHCO3 stresses on respiratory metabolism, antioxidant system, nutritional status, and organic acid metabolism in tomato roots}, volume={36}, number={8}, journal={Acta Physiologiae Plantarum}, author={Gong, B. and Wen, D. and Bloszies, S. and Li, X. and Wei, M. and Yang, F. J. and Shi, Q. H. and Wang, X. F.}, year={2014}, pages={2167–2181} } @article{gong_li_bloszies_wen_sun_wei_li_yang_shi_wang_2014, title={Sodic alkaline stress mitigation by interaction of nitric oxide and polyamines involves antioxidants and physiological strategies in Solanum lycopersicum}, volume={71}, journal={Free Radical Biology & Medicine}, author={Gong, B. and Li, X. and Bloszies, S. and Wen, D. and Sun, S. S. and Wei, M. and Li, Y. and Yang, F. J. and Shi, Q. H. and Wang, X. F.}, year={2014}, pages={36–48} } @article{gong_bloszies_li_wei_yang_shi_wang_2013, title={Efficacy of garlic straw application against root-knot nematodes on tomato}, volume={161}, journal={Scientia Horticulturae}, author={Gong, B. and Bloszies, S. and Li, X. and Wei, M. and Yang, F. J. and Shi, Q. H. and Wang, X. F.}, year={2013}, pages={49–57} }