Assessing critical plant sulfur concentration and nitrogen to sulfur ratio in spring canola production
Bao‐Luo Ma,
Aruna Herath,
Donald L. Smith
Abstract:AimsPlant S concentration (Sc) and nitrogen (N) to S ratio (N:S) in canola are important indicators for diagnosing S deficiency. A field study was conducted on sandy and clay loam soils at two sites in eastern Canada for three growing seasons to determine plant critical Sc and N:S ratios across various growth stages (GSs).MethodsFor each site year, factorial experiments consisting of combinations of four N levels (0, 80, 160, and 240 kg N ha–1) as urea (46–0–0) and four S levels (0, 20, 30, and 40 kg S ha–1) a… Show more
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