Effect
Kelpak treated Oilseed rape, cv. 'Chagall', showed significantly increased accumulation of phosphorous (P) in shoots at flowering (+16.9%), development of fruit (+11%) and ripening (+17.6%) and significantly increased accumulation of P in roots at flowering (+12.3%) and ripening (+13.9%), but not at development of fruit (+9.9%), significantly increased accumulation of potassium (K) in shoots and roots at flowering (+14.4%/+16.1%), development of fruit (+11.5%/+10.1%) an ripening (+13.8%/+15.4%), decreased internal P efficiency at flowering (-7.4%), at development of fruits (-4.2%) and at ripening (-12.5%), decreased interal K efficiency at flowering (-10.2%), at developement of fruits (-4.7%) and at ripening (-6.4%), increased recuprocal P internal efficiency at flowering (+9.6%), at development of fruits (+7.1%) and at ripening (+9.7%), and increased reciprocal K internal efficiency at flowering (+10.1%), at development of fruit (+4.6%) and at ripening (+8%) compared to untreated control plants as an average across varied NPK and sulphur (S) application rates.