Evaluation of impact of different levels of fertilizers on nutri rich grain amaranth (Amaranthus hypochondriacus L.) genotypes

The University of Agricultural Sciences, GKVK, Bangalore staged a field experiment in Kharif 2021 titled "Evaluation of impact of different levels of fertilizers on nutri rich grain amaranth (Amaranthus hypochondriacus L.) genotypes." A factorial Randomised Complete Block design (RCBD) was used to set up the experiment, where factor A consisted of five genotypes and factor B consisted of three fertilizer doses that were reproduced three times with fifteen treatment combinations. The genotype G₂ (SKNA-808) is on par with VL-115 in terms of plant height (212.25 cm), leaf area per plant (1784.62 cm² plant^-1), stem girth (6.85 cm), number of fingers per inflorescence (52.39) and grain and stover yield (1839 kg ha^-1 and 3313 kg ha^-1, respectively). The lowest was in SKGPA-61. Of the fertilizer levels, the application of 125% RDF resulted in significantly highest plant height (202.23 cm), leaf area per plant (1600.60 cm² plant^-1), stem girth (6.35 cm), number of fingers per inflorescence (47.37), finger length (31.56 cm), grain and stover yield (1802 kg ha^-1 and 3327 kg ha^-1) that was comparable to that of 100% RDF. The application of 75% RDF produced numerically highest values of crude protein (15.36 g), calcium (397.60 mg), phosphorus (545.92 mg), and iron (14.88 mg) content per 100 gm. The interactions between different genotypes and fertilizer amounts were not statistically significant.