Figure 4
From: Effects of fertilizer under different dripline spacings on summer maize in northern China
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Effects of dripline spacing and fertilization rate on dry matter yield and nutrient uptake of summer maize in 2017 (a) and 2018 (b). Values within a column followed by different letters are significantly different at the 0.05 probability level. Error bars show ± standard deviation. A1, A2, and F1, F2 represent dripline spacing and fertilization rate, respectively, as shown in Fig. 2 and Table 2. Graphs were created using Origin software version 2021 (Origin Lab Ltd., Guangzhou, China). Origin is used herein under license.
