Need-Based Nitrogen Management Through Leaf Colour Chart in High Yielding Rice Variety
Kacha DJ*, Makawana NR, Parmar MB and Thorat SS
Main Rice Research Station, Anand Agricultural University, Nawagam-387 540 (Gujarat), India
*Corresponding author Email: kacha_dharmesh@yahoo.com, rsrice_mrrs@yahoo.com
Volume 18-(2), 2025 ; https://doi.org/10.58297/HTZU4575 Click here for Pdf
Abstract
A field trial comprising two rice varieties (GAR 13 and Mahisagar) and 3 LCC scores (≤2, ≤3 and ≤4, Threshold level of LCC is 20 kg N/ha) with the recommended dose of N (80 kg and 120 kg N/ha, three split 40% basal, 40% at tillering and 20% at PI stages) was conducted in a factorial randomized block design with three replications to calibrate the LCC for nitrogen requirement of rice. In leaf color chart treatment LCC Score ≤ 4 recorded significantly higher yield attributing character viz., panicle length, panicle weight, panicle/ m2, grain and straw yield it followed by the 100% RDN (application of fertilizer as per recommendation) and LCC Score ≤ 3 during the both years and highest cost benefit ratio (2.43) was incurred under the treatment LCC Score ≤ 4 followed by treatment LCC Score ≤ 3 and 100% RDN).
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