Seed Retention of Palmer amaranth and Barnyardgrass in Soybean

What is it about?

Two of the most prominent weeds in soybean production in the midsouthern US are Palmer amaranth and banyardgrass. Typically, when crop harvesting occurs the weed seed has already either shattered or is taken into the combine and may be redistributed in the soil seedbank. This causes further weed seed spread and may contribute to the addition of resistant seeds in the seedbank. There is little research on how much seed is retained on different weed species at or beyond harvest time.

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