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Fig. 2 | BMC Plant Biology

Fig. 2

From: Determining optimal mulching, planting density, and nitrogen application to increase maize grain yield and nitrogen translocation efficiency in Northwest China

Fig. 2

Effects of mulching (M), planting density (D), and nitrogen fertilizer application rates (N) on maize dry matter accumulation at physiological maturity in 2016 (a), 2017 (b), and 2018 (c). The bars represent the mean + one standard error of the mean (n = 4). Different letters denote significant differences between treatments (Tukey’s HSD post hoc tests, P < 0.05). Note: N0, 0 kg N ha− 1; N120,120 kg N ha− 1; N240, 240 kg N ha− 1; N360, 360 kg N ha− 1

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BMC Plant Biology

ISSN: 1471-2229

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