Soil organic carbon, nitrogen, and phosphorus 13 yr after abruptly disturbing Northern Great Plains grassland

Ben W. Thomas; Xiying Hao; Walter D. Willms

doi:10.1139/cjss-2016-0113

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Ben W. Thomas,¹ Xiying Hao,^1,* Walter D. Willms¹

¹B. W. Thomas, X. Hao and W. D. Willms Agriculture and Agri-Food Canada, Lethbridge Research and Deve

^*Corresponding author: Xiying Hao (email: xiying.hao@agr.gc.ca).

Abstract

Thirteen years after cultivating native grassland and establishing continuous wheat (Triticum aestivum L.) and wheat–fallow rotations in southern Alberta, surface soil total N levels were 15% lower, and nitrate (60–90 cm) concentrations were 2.5- and 17-fold greater, than native grassland. Wheat–fallow, even without fertilization, markedly enhanced potential nitrate loss through the root zone.

Citation Download Citation

Ben W. Thomas, Xiying Hao, and Walter D. Willms "Soil organic carbon, nitrogen, and phosphorus 13 yr after abruptly disturbing Northern Great Plains grassland," Canadian Journal of Soil Science 97(2), 329-333, (9 December 2016). https://doi.org/10.1139/cjss-2016-0113

Received: 9 September 2016; Accepted: 1 November 2016; Published: 9 December 2016