petioles

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Nutrient Sampling Guidelines for cotton - CottonInfo fact sheet - December 2014

CottonInfo (2014-12-17)

This fact sheet has been adapted for CottonInfo from a former Cotton Catchment Communities CRC publication. It was originally authored by CSIRO, NSW DPI, Incitec Pivot and CRDC.

The Effect of Irrigation and Nitrogen Fertilizer on Nitrate Nitrogen Concentration in Cotton Petioles

Lockerby, S.E., Lyons, D.L., Clarke, E.L. (1988-08-17)

Determination of the petiole nitrate nitrogen concentration (PNN) in the youngest fully expanded leaf (YFEL) of cotton is a useful indicator of plant nitrogen status.