Category: Fertility/Inoc

Timing Assess soybean root nodules each year, regardless of the field history or inoculant strategy. The ideal time to assess nodulation is at the R1 (beginning bloom) stage. Root nodule assessment at this stage gives a clear picture of whether … Continue reading →

Identification Iron deficiency chlorosis (IDC) is most commonly observed in soybean crops, but dry beans, faba beans and field peas can also be sensitive to IDC. Symptoms of IDC include interveinal yellowing (chlorosis) of new growth, where leaf veins remain … Continue reading →

Nodulation failure and nitrogen (N) deficiency has appeared in soybeans across Manitoba, particularly on fields without a history of soybean, in high residue production systems and on acidic soils (pH <6.0). A possible explanation for poorer than usual nodulation and/or … Continue reading →