Xueming Yang, Ph. D.

Xueming Yang. 2023. Crop production, soil quality, and economic analysis: Organic legume cover crop farming in Southern Ontario. 2023 GUELPH ORGANIC CONFERENCE. Guelph, ON Jan 27, 2023. https://guelphorganicconf.ca/program2023/#1670601295139-31760753-5b55

ZHAO, N., YANG, X., HUANG, G., LÜ, Y., ZHANG, J., FAN, Y., DRURY, C.F., YANG, X. (2021). Chemical and spectroscopic characteristics of humic acid from a clay loam soil in Ontario after 52 years of consistent fertilization and crop rotation. Pedosphere, [online] 31(1), 204-213. http://dx.doi.org/10.1016/S1002-0160(20)60019-4

Liu, S., Fan, R., Yang, X., Zhang, Z., Zhang, X., Liang, A. (2019). Decomposition of maize stover varies with maize type and stover management strategies: A microcosm study on a Black soil (Mollisol) in northeast China. Journal of Environmental Management, [online] 234 226-236. http://dx.doi.org/10.1016/j.jenvman.2019.01.008

Yang, J.Y., Yang, X.M., Drury, C.F., Liu, S. 2019. Simulating maize yield and soil inorganic N dynamics in South Ontario using the DSSAT model. Oral presentation In: SSSA International Soils Meeting, Jan. 6-9, 2019, in San Diego, California

Xueming Yang et al. 2018. Legume cover crop: a satisfactory organic N source for grain corn in S Ontario. 17th World Fertilizer Congress, Shenyang, China, Sept 2-7, 2018.

Yang, J.Y., Drury, C.F., Yang, X.M. 2018. Simulating Reactive Nitrogen in Canadian Farmland from 1981 to 2011. Oral Presentation In: The 9/t/h International Congress on Environmental Modelling and Software Fort Collins Colorado 2018/0625 - 2018/06/29.

Woodley, A.L., Drury, C.F., Reynolds, W.D., Calder, W., Yang, X.M., Oloya, T.O. (2018). Improved acid trap methodology for determining ammonia volatilization in wind tunnel experiments. Canadian Journal of Soil Science, [online] 98(2), 193-199. http://dx.doi.org/10.1139/cjss-2017-0081

Canadian Society of Soil Science Annual Meeting 2017 June 10 - June 14, 2017 | Peterborough, Ontario

Soybean-winter_wheat-corn rotation is common for in humid s-Ontario. The objectives of this study were to determine: (1) how much nitrogen can be scavenged in legume cover crop; (2) what is the contribution of cover crop nitrogen to the yield of following corn. The cover crops were planted into the soil after winter wheat harvest, including Crimson clover (CC), hairy vetch (HV), red clover (RC), a non-cover crop conventional control (CKC) and a non-cover crop organic control (CKO). This study (2013-2016) was arranged in a randomized complete block design with 4 replicates on a sandy loam. No synthetic nitrogen fertilizer was added to the cover crop and CKO plots. One set of cover crop biomass samples were collected at the first killing-frost and another set was collected in following year before corn planting. At freeze-up, the amounts of total nitrogen in aboveground biomass were 126, 123, and 76 kg/ha, respectively, in CC, HV and RC treatments. The nitrogen contents in plant aboveground biomass changed to 104, 283 and 180 kg/ha in CC, HV, and RC plots before corn planting. The corn grain yields (3 year average) were 14525 kg/ha for the CKC and only 6181 kg/ha for the CKO. In comparison, the corn grain yields were 11762, 12765, and 12282 kg/ha for the CC, HV RC treatments, respectively. Without the use of synthetic N fertilizer, growing CC in the fallow seasons after winter wheat attained 81% of the corn grain yield of the CKC and growing HV and RC gained 88% and 86%, respectively, of the corn grain yield in the CKC achieved which received 160 kg N/ha. The CC, HV and RC can deliver significant amount of N to corn and the HV and RC performed better than the CC in term of N benefits to corn yield.