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[Objective] To study the effects of stem height on the output and soil moisture content of H. polybotrys. [Method] Effects of stem height on the output and soil moisture content of Hedysarum polybotrys in the plateau area of southern Gansu Province were studied by single-factor randomized block method. [Result] Stems were cut before flower bud appearance in early July. H. polybotrys with 50 cm stem height had the highest water use efficiency, the maximum output, main root length, root diameter, and fresh weight per plant. The output of H. polybotrys with 50 cm stem height enhanced by 30.86% compared with that of the plants in CK. [Conclusion] H. polybotrys with 50 cm stem height was relatively ideal, which could save water consumption and enhance the output.
[Objective] To study the effects of stem height on the output and soil moisture content of H. polybotrys. [Method] Effects of stem height on the output and soil moisture content of Hedysarum polybotrys in the plateau area of southern Gansu Province were studied by single-factor randomized block method. [Result] Stems were cut before flower bud appearance in early July. H. polybotrys with 50 cm stem height had the highest water use efficiency, the maximum output, main root length, root diameter, and fresh weight per plant. The output of H. polybotrys with 50 cm stem height enhanced by 30.86% compared with that of the plants in CK. [Conclusion] H. polybotrys with 50 cm stem height was more ideal, which could save water consumption and enhance the output.