Influence of Planting Density and Nitrogen Dose on Root and Sugar Yeild of Beet (Beta vulgaris L.) Under Sub-tropical Semi-Arid Conditions of Punjab
2010
Bhullar, M S | Uppal, S K | Kapur, M L
A field trial was conducted at Ladhowal, Ludhiana during 2002–03 and 2003–04 to study the effects of planting density and nitrogen on sugar beet. Three planting densities – 83,333 plants (rows spaced at 60cm and plants at 20cm), 1, 00,000 plants (50 cm x 20 cm) and 1, 11,111 plants (60 cm x 15 cm) ha⁻¹ and five nitrogen levels i.e. 120, 150 and 180 kg N ha⁻¹ alone, 90 kg N ha⁻¹ + 20 t farm yard manure (FYM) ha⁻¹ and 120 kg N ha⁻¹ + 20 t FYM ha⁻¹ were evaluated in RBD with three replications. A basal dose of 60 kg ha⁻¹ each of P and K was applied to all the treatments. On an average, planting density of 1, 00,000 plants ha⁻¹ produced the highest beet root and sugar yield. Among nitrogen levels, the response was significant up to 150 Kg N ha⁻¹. Addition of 20 t FYM ha⁻¹ along with 90 kg N ha⁻¹ produced similar root and sugar yield to 120 kg N ha⁻¹ alone. The yields were also similar with 150 kg N ha⁻¹ alone and, 120 kg N ha⁻¹ + 20 t FYM ha⁻¹. Sucrose content in beet roots did not vary statistically among plant densities and nitrogen levels, rather addition of FYM revealed higher sucrose content in roots as compared to without FYM.
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