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. 2018 Jul 12;8:10494. doi: 10.1038/s41598-018-28612-6

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Spatial soil water differences in maize/pea intercropping. The no root barrier (M/P) treatment was compared with the solid plastic sheet barrier (PM/P) treatment at (a) pea flowering and maize at stem elongation, (b) pea maturity and maize flowering, and (c) maize maturity, in 2009, 2010, and 2011. At a given soil depth, positive values indicate that soil water content was higher in the maize strips than in the pea strips, and vice versa. The number in each section is LSD value at P < 0.05.