Grain quality of emmer wheat (Triticum dicoccum L.) as influenced by precision nitrogen management practices

Abstract

A field experiment was conducted during rabi season of 2020-21 and 2021-22 to find out the effect of different precision nitrogen management practices on the quality of emmer wheat at Main Agricultural Research Station (MARS),University of Agricultural Sciences, Dharwad, on black clay soil conditions. The experiment was replicated thrice in RCBDwith thirteen treatments for precision nitrogen management (Control, N-omission, RDN, LCC, SSNM, STCR andNutrient Expert) in emmer wheat. The results revealed that application of nitrogen through STCR for targeted yield of 6.0 t ha-1recorded significantly maximum grain yield (5201 kg ha-1), nitrogen content in grain (2.21%), straw (0.66%) and nitrogenuptake in grain (114.69 kg ha-1) and straw (52.42 kg ha-1) in pooled analysis. The quality parameters of emmer wheat weresignificantly influenced by different precision nitrogen management practices, the maximum crude protein (12.57%),sedimentation value (32.31 ml) and β-Carotenecontent (4.86 ppm) in grain was noticed in nitrogen management through STCRfor targeted yield of 6.0 t ha-1 over absolute control (9.15%, 20.98 ml and 3.52 ppm, respectively) and N- omission(9.52%, 22.68 ml and 3.72 ppm, respectively). There was 65 per cent increase in grain yield in STCR for targeted yield of6.0 t ha-1 over absolute control. The near perfect linear relationship of grain yield withgrain crude protein content (R2=0.9737),sedimentation value (R2=0.8967) and yellow pigment (R2=0.9589) was suggested that higher grain yield with better qualityof wheat grains.