Assessment of Sulfur Deficiency under Field Conditions by Single Measurements of Sulfur, Chloride and Phosphorus in Mature Leaves.

ABSTRACT: Determination of S status is very important to detect S deficiency and prevent losses of yield and seed quality. The aim of this study was to investigate the possibility of using the ([Cl−]+[NO₃−]+[PO₄3−]):[SO₄2−] ratio as an indicator of S nutrition under field conditions in Brassica napus and whether this could be applied to other species. Different S and nitrogen (N) fertilizations were applied on a S deficient field of oilseed rape to harvest mature leaves and analyze their anion and element contents in order to evaluate a new S nutrition indicator and useful threshold values. Large sets of commercial varieties were then used to test S deficiency scenarios. As main results, this study shown that, under field conditions, leaf ([Cl−]+[NO₃−]+[PO₄3&minus

SUBMITTER: Etienne P 

PROVIDER: S-EPMC6027431 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature