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Chemical and Biological Technologies in Agriculture
Fig. 4 | Chemical and Biological Technologies in Agriculture

Fig. 4

From: Plant–Rhizobium symbiosis, seed nutraceuticals, and waste quality for energy production of Vicia faba L. as affected by crop management

Fig. 4

Number of root nodules (a) and nitrogen uptake (b) at the different phenological phases and planting times; V, vegetative phase; Fl, early flowering; Efr, early fruiting; Mfr, mid-fruiting; Lfr, late fruiting. Different letters mean significant difference according to Duncan multiple range test at p ≤ 0.05: lowercase refers to comparison between phenological phases within each planting time, capital letters to comparison between planting times within each phase

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