间作对氮调控玉米光合速率和光合氮利用效率的影响
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Effects of intercropping on photosynthetic rate and net photosynthetic nitrogen use efficiency of maize under nitrogen addition
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图1. 玉米单作和间作示意图。I, 间作; I-M, 靠近玉米侧的玉米叶片; I-P, 靠近马铃薯侧的玉米叶片; M, 单作。 |
Fig. 1. Illustration of maize monoculture and intercropping maize and potato. I, intercropping; I-M, intercropping maize leaves close to maize of other row; I-P, intercropping maize leaves close to potato; M, monoculture. |
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