EFFECT OF DIFFERENT SOURCES OF NUTRIENTS ON THE GROWTH AND YIELD OF BEETROOT (Beta vulgaris L.)

Abstract

A field experiment was accomplished in the Horticulture farm, Sher-e-Bangla Agricultural University, Dhaka during the period from November 2020 to March, 2021 to study on the effect of different sources of nutrients on the growth and yield of beetroot. The experiment comprised of eleven levels of T 0 ii

: N 0 P 0 K 0 + No Organic Manure + No Biochar (Control); T 1 : NPK 100% (RDF)/ha; T 2 : Biochar 10 t/ha; T 3 : Organic Manure 15 t/ha; T 4 : NPK 50% (RDF)/ha + Biochar 10 t/ha; T 5 : NPK 100% (RDF)/ha + Biochar 5 t/ha; T 6 : Organic Manure 7.5 t/ha + Biochar 10 t/ha; T 7 : Organic Manure 15 t/ha + Biochar 5 t/ha; T 8 : NPK 50% (RDF)/ha + Organic Manure 7.5 t/ha; T 9 : NPK 50% (RDF)/ha + Organic Manure 7.5 t/ha + Biochar 5 t/ha and T 10 : NPK 100% (RDF)/ha + Organic Manure 15 t/ha + Biochar 10 t/ha treatments were used in this experiment arranged in Randomized Complete Block Design (RCBD) with three replications. Data on different parameters were taken where all treatments showed significant variations. The maximum yield (41.21 t/ha) was recorded from T 10 (NPK 100% (RDF)/ha + Organic Manure 15 t/ha + Biochar 10 t/ha) and the lowest yield was (21.35 t/ha) obtained from T 0 . The analyses revealed that (NPK 100% (RDF)/ha + Organic Manure 15 t/ha + Biochar 10 t/ha) treatment was the best in terms of net return (8,75,100 Tk.) with a benefit cost ratio of (2.13), it was obvious from the above results that the treatment of (NPK 100% (RDF)/ha + Organic Manure 15 t/ha + Biochar 10 t/ha) was more profitable than rest of treatments.