Observational analysis shows increased wheat yield and land efficiency in bean-wheat intercropping, indicating benefits of reduced nitrogen use.
The experiment was set up with 2 :8 intercropping (2P8M), 4 :6 intercropping (4P6M), with single crop pea (SP) and single crop wheat (SM) as control, and concluded that bean-wheat intercropping significantly increased wheat plant height, chlorophyll content and yield, while reduced the corresponding traits of pea, and the land equivalence ratio of 4P6M > 2P8M > 1 improved the efficiency of land use, and the intercropping of 4P6M treatment combination was better.
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Du et al. (2025) studied this question.
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