Title: Sulphur fertilizer effect on cotton: I. Nitrogen and sulphur status and petiole nitrate‐nitrogen
Abstract: Abstract The effect of S fertilization on S and N status and petiole NO3 −‐N in cotton was observed during the growing seasons of 1980 and 1981. Four sites representing 2 soil subgroups were studied using a randomized complete block design with 4 replications. Leaf and petiole sampling began one week prior to bloom initiation and continued weekly for eight weeks. Leaf samples were analyzed for S and N and the petioles for NO3 −‐N. Levels of leaf‐S varied directly with amounts of applied S. Leaf‐N and petiole NO3 −‐N varied directly with amounts of applied N. Though not always significant, petiole NO3 −‐N and leaf‐N showed negative correlations with leaf‐S. These results suggest that knowledge of the cotton plant S status may be necessary to interpret petiole NO3 −‐N for N fertilization of cotton.
Publication Year: 1982
Publication Date: 1982-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 2
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