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CALIBRATING CHLOROPHYLL METER (SPAD-502) READING BY SPECIFIC LEAF AREA FOR ESTIMATING LEAF NITROGEN CONCENTRATION IN SWEET SORGHUM
The chlorophyll meter (SPAD-502) is used to estimate nitrogen status of various crops. However,
the relationship between SPAD readings and leaf nitrogen concentration (LNC) in sweet sorghum
(Sorghum bicolor) has not been ...