Ruijun (Ray) Qin, Ph.D

Assistant Professor, Extension Agronomist

Email Ruijun.qin@oregonstate.edu or 541-567-8321x134

Department of Crop and Soil Science

Extension Research and Interests: My extension and research program focuses field crop agronomy and soil/nutrient/water management of high value irrigated crops (including potato, wheat, field corn, alfalfa, grass seed, peppermint and other crops) grown in the in north-central and north-eastern Oregon (particularly, Morrow and Umatilla Counties) and as appropriate, south-central Washington. I am also interested in working with state regulatory agencies and local industry to develop environmentally sustainable and crop-effective strategies for dealing with reuse water and other by-products from local processing plants and beyond. Collaborating with HAREC colleagues, regional extension faculty, and faculty at other research stations and main campus, I am actively identifying, making recommendations for and finding solutions to important regional crop production questions to enhance production and profitability while increasing protection of soil, water and air quality.

Areas of Expertise: Nutrient/water management; Soil reclamation; Cropping system; Plant roots; Soil fumigation; Gaseous emissions (fumigant, N2O, and NH3)

Graduate Student Position Available

Degrees:

Ph.D. – 2003 – Agronomy, Swiss Federal Institute of Technology Zurich, Switzerland

M.S. – 1995 – Soil Science, Chinese Academy of Agricultural Sciences, Beijing, China

B.S. – 1992 – Soil and Plant Nutrition, Shanxi Agricultural University, Shanxi, China

Organizations and Affiliations:

  • American Society of Agronomy

  • Soil Science Society of America.

  • Crop Science Society of America.

  • American Society for Horticultural Science.

  • Association for the Advancement of Industrial Crops

     

Publications

Refereed Journals

Noulas, C., J. M. Herrer, M. Tziouvalekas, and R, Qin. 2018. Agronomic assessment of nitrogen use efficiency in spring wheat and interrelations with leaf greenness under field conditions. Communications in Soil Science and Plant Analysis. (in press)

Qin, R., C. Noulas, and J. M. Herrera, 2018. Morphology and distribution of wheat and maize roots as affected by tillage systems and soil physical parameters in temperate climates: an overview. Archives of Agronomy and Soil Science. (in press).

Gao, S., D. A. Doll, R. Qin, S. R. Dangi, J. S. Gerik, D. Wang, and B.D. Hanson. 2018. Emission and crop response in almond orchards fumigated with reduced rates of Telone® C-35 and low permeability film for nematode control. Crop Protection. 105: 80-89.

Qin, R., S. Gao, J.E. Thomas, D. Wang, and B.D. Hanson. 2017. Off-tarp emissions, distribution, and efficacy of carbonated fumigants in a low permeability film tarped field. Science of the Total Environment. 603–604: 1-7.

Qin, R., S. Gao, H. Ajwa, and B. Hanson. 2016. Effect of application rate on fumigant degradation in five agricultural soils. Science of the Total Environment 541:528-34

Cabrera, A.J., B.D. Hanson, M.J.M. Abit, J.S. Gerik, S. Gao, R. Qin, and D. Wang. 2015. Pre-plant soil fumigation with reduced rates under low permeable films for tree nursery production, orchard and vineyard replanting. Crop Protection 75: 34-39.

Gao, S., R. Qin, H.S. Ajwa, and S.T. Fennimore. 2014. Low permeability tarp to improve soil fumigation efficiency for strawberry production in California, USA. p. 707-714. In Yuntao Zhang and J. Maas (eds). Proc. 7th Intl. StrawberrSymp., Volume 2, Acta Hort. 1049, ISHS 2014.

Spurlock, F., B. Johnson, A. Tuli, S. Gao, J. Tao, F. Sartori, R. Qin, D. Sullivan, M. Stanghellini, and H. Ajwa. 2013. Simulation of fumigant transport and volatilization from tarped broadcast applications. Vadose Zone Journal 12(3): 1-10.

Qin, R., S. Gao, J.E. Thomas, D.W. Dickson, H. Ajwa, and D. Wang. 2013. Emissions from soil fumigation in two raised bed production systems tarped with low permeability films. Chemosphere 93: 1379-1385. http://elsarticle.com/18AAb13.

Qin, R., S. Gao, and H. Ajwa. 2013. Emission and distribution of fumigants as affected by soil moistures in three different textured soils. Chemosphere 90: 866-872.

Gao, S., B. D. Hanson, R. Qin, A.J. Cabrera, J.S. Gerik, D. Wang, G. Browne. 2013. Totally impermeable film (TIF) reduces emissions in perennial crop fumigation. California Agriculture 67: 217-221.

Hanson, B.D., S. Gao, J. Gerik, R. Qin, J.A. Cabrera, A.J. Jhala, M.J.M. Abit, D. Cox, B. Correiar, D. Wang, and G.T. Browne. 2013. Preplant 1,3-D treatments test well for perennial crop nurseries, but challenges remain. California Agriculture 67:181-189.

Ajwa, H., M.S. Stanghellini, S. Gao, D.A. Sullivan, A. Khan, W. Ntow, R. Qin. 2013. Fumigant emission reductions with TIF warrant regulatory changes. California Agriculture 67: 147-152.

Long J., G. Ma, Y. Wan, C. Song, J. Sun, R. Qin. 2013. Effects of nitrogen fertilizer level on chlorophyll fluorescence characteristics in flag leaf of super hybrid rice at late growth stage. Rice Science 20(3): 222-228.

Gao, S., H. Ajwa, R. Qin, M. Stanghellini, and D. Sullivan. 2013. Emission and transport of 1,3-dichloropropene and chloropicrin in a large field tarped with VaporSafeTM TIF. Environmental Science & Technology 47: 405-411.

Jhala, A.J., S. Gao, J.S. Gerik, R. Qin, and B.D. Hanson. 2012. Effects of surface treatments and application shanks on nematode, pathogen and weed control with 1,3-dichloropropene. Pest Management Science 68: 225-230.

Gao, S., B. Hanson, D. Wang, G. Brown, R. Qin, H.A. Ajwa, and S.R. Yates. 2011. Methods evaluated to minimize emissions from pre-plant soil fumigation. California Agriculture 65: 41-46.

Gao, S., T. Pflaum, and R. Qin. 2011. Trapping efficiency of 1,3-dichloropropene isomers by XAD-4 sorbent tubes for air sampling. Atmospheric Environment 45: 4322-4327.

Qin, R., F. Chen, and J. Gao. 2011. Long-term application of chemical fertilizers and rice straw on soil aluminum toxicity. Communications in Soil Science and Plant Analysis 42:66-74.

Qin, R., S. Gao, H. Ajwa, D. Sullivan, D. Wang, and B.D. Hanson. 2011. Field evaluation of a new plastic film (Vapor Safe) to reduce fumigant emissions and improve distribution in soil. Journal of Environmental Quality 40: 1195-1203.

Hanson, B.D., S. Gao, J. S. Gerik, A. Shrestha, R. Qin, and J.A. McDonald. 2011. Effects of emission reduction surface seal treatments on pest control with shank-injected 1,3-dichloropropene and chloropicrin. Crop Protection 30: 203-207.

Gao, S., B.D. Hanson, R. Qin, D. Wang, and S. Yates. 2011. Comparisons of surface sealing methods to reduce fumigant emission loss. Journal of Environmental Quality 40: 1480-1487.

Ajwa, H., W.J. Ntow, R. Qin, and S. Gao. 2010. Properties of Soil Fumigants and Their Fate in the Environment. p. 315-330. In R. Krieger (ed). Hayes’ Handbook of Pesticide Toxicology, Third edition, Volume 1, Elsevier Inc.

Wang, D., S. Gao, R. Qin, and G. Browne. 2010. Lateral movement of soil fumigants 1,3-dichloropropene and chloropicrin from treated agricultural fields. Journal of Environmental Quality 39: 1800-1806.

Qin, R., S. Gao, H. Ajwa, B.D. Hanson, T.J. Trout, D. Wang, and M. Guo. 2009. Interactive effect of organic amendment and environmental factors on degradation of 1,3-dichloropropene and chloropicrin in soil. Journal of Agricultural and Food Chemistry 57: 9063-9070.

Qin, R., S. Gao, D. Wang, B.D. Hanson, T.J. Trout, and H. Ajwa. 2009. Relative effect of soil moisture on emissions and distribution of 1,3-Dichloropropene and Chloropicrin in Soil Columns. Atmospheric Environment 43: 2449-2455.

Gao, S., R. Qin, N. Tharayil, B.D. Hanson, T.J. Trout, and D. Wang. 2009. Effects of manure and water applications on 1,3-dichloropropene and chloropicrin emission in a field trial. Journal of Agricultural and Food Chemistry 57: 5428-5434.

Wang, D., G. Browne, S. Gao, B. Hanson, J. Gerik, R. Qin, and N. Tharayil. 2009. Spot fumigation: Fumigant gas dispersion and emission characteristics. Environmental Science and Technology 43: 5783-5789.

McDonald, J.A., S. Gao, R. Qin, B.D. Hanson, T.J. Trout, and D. Wang. 2009. Effect of Water Seal on Reducing 1,3-Dichloropropene Emissions from Different Textured Soils. Journal of Environmental Quality 38: 712-718.

Qin, R., S. Gao, J.A. McDonald, H. Ajwa, S. Shem-Tov, and D.A. Sullivan. 2008. Effect of plastic tarps over raised-beds and potassium thiosulfate in furrows on chloropicrin emissions from drip fumigated fields. Chemosphere 72: 558-563.

Gao, S., R. Qin, J.A. McDonald, B.D. Hanson, and T.J. Trout. 2008. Field tests of surface seals and soil treatments to reduce fumigant emissions from shank-injection of Telone C35. Science of the Total Environment 405: 206-214.

McDonald, J.A., S. Gao, R. Qin, T.J. Trout, and B.D. Hanson. 2008. Thiosulfate and manure amendment with water application and tarp on 1,3-Dichloropropene emission reductions. Environmental Science and Technology 42 (2): 398-402.

Qin, R., S. Gao, B.D. Hanson, J.A. McDonald, T.J. Trout, and H. Ajwa. 2007. The effect of drip application ammonium thiosulfate on fumigant degradation in soil columns. Journal of Agricultural and Food Chemistry 55: 8193-8199.

Qin, R., Y. Hirano, and I. Brunner. 2007. Exudation of organic acid anions from poplar roots after exposure to Al, Cu and Zn. Tree Physiology 27: 313-320.

Qin, R., P. Stamp, and W. Richner. 2006. Impact of tillage on maize rooting in a Cambisol and Luvisol in Switzerland. Soil and Tillage Research 85: 50-61.

Qin, R., and F. Chen. 2005. Amelioration of aluminum toxicity in red soil through the use of barnyard and green manure. Communications in Soil Science and Plant Analysis 36: 1875-1889.

Qin, R., P. Stamp, and W. Richner. 2005. Impact of tillage and banded starter fertilizer on maize root growth in the top 25 cm of the soil. Agronomy Journal 97: 674-683.

Qin, R., P. Stamp, and W. Richner. 2004. Impact of tillage on root systems of winter wheat. Agronomy Journal 96: 1523-1530.

Gao, J., D. Qin, H. Shen, and R. Qin. 2000. The study on the cultivation technique for the high yield of triticale in winter fallow paddy field of Hunan. Tillage and Cultivation No. 5: 8-9 (in Chinese).

Qin, R., and F. Chen. 1999. The toxicity of aluminum on some crops at seedling stage in hilly red soil of southern Hunan. Plant Nutrition and Fertilizer Science 5 (1): 50-56 (in Chinese).

Chen, Y., D. Chen, Y. You, J. Huang, and R. Qin 1999. The variations of red soil fertility and the available techniques of fertilization. Plant Nutrition and Fertilizer Science 5(2): 115-121 (in Chinese).

Qin, R., and F. Chen. 1998. The effect of organic matter on high active aluminum of soil. Chinese Journal of Soil Science 29(3): 111-112 (in Chinese).

Qin, R., and F. Chen. 1997. The effects of long term planting forage on aluminum toxicity in red soil. Soil Fertilizer No.5: 37-39 (in Chinese).

Chen, F., and R. Qin. 1996. The exchangeable aluminum distribution of hilly red soil in southern Hunan. Soil 28(6): 295-297 (in Chinese).

Qin, R., and F. Chen. 1996. Aluminum detoxification with low-molecule organic acid in red soil. Soil Fertilizer No. 5: 12-14 (in Chinese).

Professional Meeting presentations and Research Abstracts

Qin, R., O. Daugovish, S. Gao, B. Hanson, and J. Gerik. 2015. Optimizing fumigation efficiency by doubling drip line number and using low permeability film in raised-bed production systems. ASA, CSSA & SSSA 2015 International Annual Meetings. Minneapolis, MN.

Qin, R., O. Daugovish, S. Gao, J. Gerik, T. Gordon, and B. Hanson. 2015. Deep fumigation in totally impermeable film covered raised-bed production system. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2015. Improving fumigation efficiency by increasing drip-tape number and using low permeability film in raised-bed production systems. American Society for Horticultural Science Annual Conference. New Orleans, LA.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2014. Soil fumigation applied through deep drip tapes in totally impermeable film mulched raised-bed systems for strawberry production. American Society for Horticultural Science Annual Conference. Orlando, FL.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2014. Improving fumigant efficiency by deep application and totally impermeable film covering raised-bed systems for strawberry production. ASA, CSSA & SSSA 2014 International Annual Meetings. Long Beach, CA.

Qin, R., S. Gao, B. Hanson, J. Gerik, and D. Wang. 2013. Distribution, efficacy, and off-tarp emissions of carbonated fumigants in low permeability film tarped field. ASA, CSSA, and SSSA 2013 International Annual Meetings. Tampa, FL.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik, and H. Ajwa. 2013. Deep drip fumigation in totally impermeable film tarped raised-beds production systems. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Qin, R., T. Pflaum, S. Gao, B. Hanson. 2012. A micro spot injection system for studying the effects of carbonation on fumigant dispersion in soil. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Gao, S., R. Qin, A. Cabrera, J. Gerik, B. Hanson, L. Sosnoskie, D. Wang, and G. Browne. 2012. Minimize emission and improve efficacy with low permeability tarp in soil fumigation for perennials. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Cabrera, J. A., J. Conkle, R, Qin, D. Wang, and J. Gan. 2012. Degradation and adsorption of carbonated dimethyl disulfide in soils with grape production in California. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Qin, R., S. Gao, H. Ajwa. 2012. Effect of application rate on degradation of several important fumigants in soil. ASA, CSSA, and SSSA 2012 International Annual Meetings. Cincinnati, OH.

Gao, S., R. Qin, B. Hanson, A. Cabrera, J. Gerik, and D. Wang. 2012. Low permeability tarps to reduce emission and improve fumigant distribution in soil from shank injection of Telone C35. ASA, CSSA, and SSSA 2012 International Annual Meetings. Cincinnati, OH.

Gao, S., R. Qin, H. Ajwa, D. Sullivan, and M. Stanghellini. 2012. Emission and movement of 1,3-dichloropropene and chloropicrin in a large field tarped with low permeable film. 244th ACS National Meeting & Exposition: Pesticides and Fumigant Emissions from Agricultural Systems. Philadelphia, PA.

Papiernik, S.K., S. R. Yates, Y. Qian, H. Ajwa, S. Gao, R. Qin, F. Sances, and K. Spokas. 2012. Inter-laboratory validation of standardized method to determine permeability of plastic films. 244th ACS National Meeting & Exposition: Pesticides and Fumigant Emissions from Agricultural Systems. Philadelphia, PA.

Qin, R., and S. Gao. 2011. The fate of alternative soil fumigants to methyl bromide. AGU Fall Meeting 2011. San Francisco, CA.

Gao, S., R. Qin, A. Cabrera, B. Hanson, J. Gerik, D. Wang, and G. Browne. 2011. Application of low permeability tarp in perennial field fumigation. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Qin, R., S. Gao, and H. Ajwa. 2011. Fumigant degradation as affected by different application rate in five soils. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Cabrera, J.A., B.D. Hanson, M.J.M. Abit, J.S. Gerik, S. Gao, R. Qin, and D. Wang. 2011. Efficacy of 1,3-dichloropropene plus chloropicrin reduced rates under two different tarps against nematodes, pathogens and weeds. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Hanson, B., S. Gao, J. Gerik, D. Wang, R. Qin, J.A. Cabrera, A.J. Jhala, and M.J.M. Abit. 2011. MB alternatives for the California perennial nursery industry – A PAW project update. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Gao, S., R. Qin, H. Ajwa, D. Sullivan, M. Stanghellini. 2011. TIF tarp on emission and fumigant movement in an 8-acre field. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Qin, R., S. Gao, J.E. Thomas, D.W. Dickson, H. Ajwa, and  D. Wang. 2011. Fumigant emissions affected by bed design and other factors in fields tarped with low permeability films. ASA, CSSA, and SSSA 2011 International Annual Meetings. San Antonio, TX.

Gao, S., R. Qin, A. Cabrera, J. Gerik, B. Hanson, and D. Wang. 2011. Issues and management in using low permeability tarps to reduce emission from broadcast soil fumigation. ASA, CSSA, and SSSA 2011 International Annual Meetings. San Antonio, TX.

Qin, R., S. Gao, H. Ajwa, D. Sullivan, and D. Wang. 2010. Evaluation of totally impermeable film for fumigant emissions reduction. ASA-CSSA-SSSA 2010 International Annual Meetings. Long Beach, CA.

Gao, S., R. Qin, A. Cabrera, B. Hanson, and D. Wang. 2010. Potential of using low permeability tarp to reduce emissions and application rates in soil fumigation. ASA-CSSA-SSSA 2010 International Annual Meetings. Long Beach, CA.

Hanson, B., S. Gao, J. Gerik, D. Wang, R. Qin, A. Cabrera, and A. Jhala. 2010. Pacific Area-Wide Program: Current status of the California perennial nursery sector. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Qin, R., and S. Gao. 2010. Effect of soil moisture on emission and distribution of fumigants in different textured soils. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Gao, S., R. Qin, B. Hanson, and D. Wang. 2009. Strategies for minimizing emissions from soil fumigation in perennial nurseries. ASA-CSSA-SSSA International Annual Meetings. Pittsburgh, PA.

Qin, R., S. Gao, B.D. Hanson, D. Wang, and H. Ajwa. 2009. Effect of soil moisture on fumigant emissions from a loam soil. ASA-CSSA-SSSA International Annual Meetings. Pittsburgh, PA.

Gao, S., R. Qin, B. Hanson, D. Wang, G. Browne, and J. Gerik. 2009. Measurement and assessment of field emission reductions. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Hanson, B., S. Gao, J. Gerik, R. Qin, and D. Wang 2009. Perennial crop nursery sector progress- Pacific Area-Wide Program for MB alternatives. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Wang, D., J. Gerik, S. Gao, B. Hanson, R. Qin, G. Browne, and S. Vasquez. 2009. Alternatives to methyl bromide soil fumigation for vineyard replant. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Qin, R., S. Gao, B.D. Hanson, D. Wang, and J. Gerik. 2008. Shank designs and soil surface treatments on 1,3-D emissions in a nursery field trial. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Qin, R., S. Gao, and H. Ajwa. 2008. Low permeable tarps reduce emissions from drip-applied InLine in a strawberry field trial. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Gao, S., R. Qin, N. Tharayil, B. Hanson, J. Gerik, and D. Wang. 2008. Emissions of 1,3-dichloropropene and chloropicrin from soils with manure amendment and post-fumigation water treatment. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Gao, S., D. Wang, T. Pflaum, R. Qin, B. Hanson, G. Browne, H. Ajwa, andS. Yates. 2008. Dynamic flux chamber systems for fumigant emission measurements. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Wang, D., N. Tharayil, R. Qin, S. Gao, and B. Hanson. 2008. Reducing 1,3-dichloropropene and chloropicrin emissions with subsurface drip and virtually impermeable film. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Wang, D., S. Gao, J. Gerik, B. Hanson, N. Tharayil, R. Qin, G. Browne, C. Smith, K. Klonsky, B. Westerdahl, S. Vasquez, and S. Yates. 2008. Methyl bromide alternatives for vineyard replant – assessment of control efficacy, fumigant movement, and crop response. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Hanson, B.D., S. Gao, J. Gerik, D. Wang, and R. Qin. 2008. Pest control with California approved nursery stock certification 1,3-D treatments. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Qin, R., S. Gao, and H. Ajwa. 2008. Performance of low permeable tarps on reducing 1,3-dichloropropene and chloropicrin emissions in a strawberry field trial. 2008 Joint Annual Meeting, GSA-SSSA-ASA-CSSA-GCAGS-HGS. Houston, TX.

Wang, D., N. Tharayil1, R. Qin, S. Gao, B. Hanson, J. Gerik, and G. Browne. 2008. Dispersion of reactive fumigant gases in soil. 2008 Joint Annual Meeting, GSA-SSSA-ASA-CSSA-GCAGS-HGS. Houston, TX.

Qin, R., S. Gao, H. Ajwa, T.J. Trout, and D. Wang. 2007. Effects of organic amendment on degradation of 1,3-dichloropropene and chloropicrin in soil. ASA-CSSA-SSSA International Annual Meetings. New Orleans, LA.

Qin, R., S. Gao, T. Trout, D. Wang, and H. Ajwa 2007. Effect of soil moisture on emissions and distributions of fumigants in columns. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Qin, R., S. Gao, J. McDonald, H. Ajwa, S. Shem-Tov, and D. Sullivan. 2007.  Plastic films on controlling chloropicrin emissions in a strawberry field trial. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Gao, S., R. Qin, J. McDonald, B. Hanson, and T. Trout. 2007. Field tests on emission reduction methods from Telone C35 application. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. San Diego, CA.

Qin, R., J. McDonald, S. Gao, B. Hanson, H. Ajwa, and T. Trout. 2006. The effect of ammonium thiosulfate on reducing fumigant concentration under high surface barrier. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

McDonald, J., R. Qin, S. Gao, and T. Trout. 2006. Reduction of fumigant emissions using chemical and organic amendments. Ann. Int. Res. Conf. on MeBr Alternatives and Emissions Reductions. Orlando, FL.

Qin, R., Y. Hirano, and I. Brunner. 2005. Patterns of organic acid exudates of poplar roots as affected by aluminium or copper stress. “ACID RAIN 2005” 7th International Conference on Acid Deposition. Prague, Czech Republic.

Qin, R., Y. Hirano, and I. Brunner. 2004. Root exudation of poplar under aluminium stress. Workshop of the COST E 38 “Woody Root Processes under a Changing Environment”. Thessalonoki, Greece.

Qin, R., P. Stamp, and W. Richner. 2004. Root morphology of maize as affected by tillage systems and banded starter fertilizer in the topsoil. “Rhizosphere Congress 2004”. Munich, Germany.

Qin, R., P. Stamp, and W. Richner. 2002. Distribution of maize root systems as affected by tillage systems and banded starter fertilizer. VII Congress of European Society for Agronomy. Cordoba, Spain.

Extension and Outreach Presentations

Qin, R., O. Daugovish, S. Gao, J. Gerik, T. Gordon, H. Ajwa, and B. Hanson. 2016. Improving drip fumigation for strawberry production in California. University of California Cooperative Extension Ventura County Workshop: Fumigants and non-fumigant alternatives: regulatory and research updates. Ventura, CA, April 2016.            

Qin, R., O. Daugovish, S. Gao, J. Gerik, T. Gordon, H. Ajwa, and B. Hanson. 2016. Soil fumigation with multiple drip tapes in low permeability film covered raised-bed systems. 1st Soil Management Meeting. Salinas, CA, February 2016.            

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2015. Improving fumigation technology by doubling the number of drip tapes in raised-bed production systems. University of California Cooperative Extension Ventura County Workshop: Fumigants and non-fumigant alternatives: regulatory and research updates. Ventura, CA.

Gao, S., D. Doll, R. Qin, S. R. Dangi, B. Hanson, J.S. Gerik, G.T. Browne, and D. Wang. 2015. Minimize emissions and improve efficacy with low permeability tarp and deep injection in soil fumigation. Almond Industry Conference. Sacramento, CA.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2015. The impact of application depth on fumigant behavior in raised-bed systems for strawberry production. 2015 North American Berry Conference/ 8th North American Strawberry Symposium. Ventura, CA.            

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2015. Improving fumigation technology in raised bed strawberry production systems. 2015 North American Berry Conference/ 8th North American Strawberry Symposium. Ventura, CA.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2014. Optimizing fumigation rate, application depth, and plastic mulch use for strawberry production in raised-bed systems. Organic Strawberry Workshop: Developing the Logistics for Producing Human Pathogens-Free Organic Strawberries in the State of Tennessee. Nashville, TN.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2014. Improving fumigant efficiency and reducing fumigant emission in plastic mulched raised-bed systems for strawberry production. Central Coast California Association of Pest Control Advisers (CAPCA) Chapter’s Spring Continuing education (CE) Meeting. Santa Maria, CA.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2014. Deep drip application and low permeability tarp on fumigant behavior in raised-bed systems for strawberry production. California Plant and Soil Conference. Fresno, CA.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2014. Improving fumigant efficiency and reducing fumigant emission in plastic mulched raised-bed systems for strawberry production. Ventura Chapter of CAPCA Summer 2014 CE Meeting. Santa Paula, CA.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2014. Optimizing drip fumigation through deep application and totally impermeable film covering for strawberry production. The 13th strawberry meeting. Camarillo, CA.

Qin, R., O. Daugovish, S. Gao, B. Hanson, J. Gerik and H. Ajwa. 2014. Improving fumigant efficiency and reducing fumigant emission in plastic mulched raised-bed systems for strawberry production. National Sustainable Strawberry Initiative Project Meeting. Fayetteville, AR.

Hometown: Wuzhai, China

 

 

 

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