Effects of broad-leaved grass inhibitors and nitrogen fertilizer on seed production <i>Elymus nutans</i> in alpine meadow of the Qinghai-Tibet Plateau.

4.2 Coupled effects of inhibitors and nitrogen on seed yield in Elymus nutans The present study demonstrated that the interaction between the broad-leaved grass inhibitor and nitrogen application had a highly significant effect on the seed yield of E. nutans .

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