| The lack of a soil test that can predict mineralizable N availability to flooded rice (Oryza sativa L.) throughout the growing season has lead researchers to monitor the plant N status with plant measurements that estimate plant N uptake. Studies comparing these indicators of plant N status for rice have not been reported yet. Therefore, the objective of this study was to investigate the accuracy of N concentration and chlorophyll meter readings of the most recently matured leaf (Y-leaf) and plant area in predicting total N accumulation during the vegetative stage and grain yield. Five preflood N rates (0 to 134.4 kg ha... |
