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Abstract
A field experiment was conducted at Ste. Anne de Bellevue, Quebec during the growing seasons of 2002 and 2003, to study the effect of Nod factor treatments, applied at specific growth stages, on photosynthesis and biomass accumulation by soybean grown under two tillage systems (conventional tillage, no-tillage). Spray application of Nod factors increased photosynthesis at the four fully expanded trifoliate leaves and full bloom growth stages under no-tillage and conventional tillage; they increased plant biomass at the beginning seed filling stage. Nod factor treatment did not affect yield in 2002, due to severe drought during the reproductive period. In 2003, Nod factor application increased yield under conventional tillage but not under no-tillage, and this may have been due to the negative effect of no-tillage on plant growth on the clay-loam soil at the experimental site. This study indicated that responses to Nod factors are affected by environmental conditions, and that Nod factors may be useful when applied to soybean grown under conventional tillage.
Published Version
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Schedule a callMore From: Acta Agriculturae Scandinavica, Section B — Soil & Plant Science
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