weed seedbank - Canadian Agronomist

Digging into Research

22 Jun Kochia persists in aerial seedbanks

Posted at 16:38h in Weeds

Overwintering kochia plants, 7 to 8 months after plant senescence the previous fall, retained an estimated 2091 ± 297 seeds per plant in May. This represented an average estimated at 18.5 ± 1.9% of total seed production. Research has shown that kochia has a relatively short...

01 Mar Less weed competition for soybeans grown on low-nitrogen soils

Posted at 21:54h in Weeds

Growing soybean on high soil mineral nitrogen (N) fields, or when N fertilizer was applied in increasing rates, resulted in an increase in volunteer canola competition and a corresponding linear decrease in soybean yield. Research was conducted in Manitoba looking at the resource-ratio (R*) hypothesis. This...