<p>Despite the increasing availability of chlorophyll meters in the market, their adoption remains limited due to the absence of region-specific thresholds. One such meter, the CCM 200 plus produced by Opti-Sciences Inc., stands out for its non-destructive nature, cost-effectiveness and reliability. However, specific thresholds for this meter in the eastern coastal plains of India, particularly for maize crops, are lacking. The current study was carried out at the P.G. Research Farm, MSSSoA during summer season of 2022-23 encompassing three chlorophyll content indices (CCI&lt;35, CCI&lt;40, CCI&lt;45) with and without basal nitrogen applications, alongside fixed-time nitrogen management (FTNM) and Absolute N Control (no nitrogen) which were allocated in randomized block design with three replications. The findings indicated that both CCI&lt;45 with basal nitrogen application and CCI&lt;40 with basal nitrogen application demonstrated statistically similar maize grain yields, surpassing FTNM by 18.1% and 12.4%, respectively. However, adopting CCI&lt;40 with basal nitrogen application resulted in savings of 30 kg N/ha compared to CCI&lt;45 with basal nitrogen application for maize cultivation in the Eastern Coastal Plains of India.</p>


Real Time Nitrogen Management of Maize using CCM 200 Plus During Dry Season in Eastern Coastal Plains of India