Effect of nitrogen fertilization on yield and quality of sugarbeet
1987
Kapur, M.L. | Kanwar, R.S. (Punjab Agricultural Univ., Jalandhar (India). Sugarcane Research Station)
In a 2-year field experiment the root yield increased curvilinearly, while sucrose percentage in fresh roots decreased linearly with increasing levels of N up to 200 kg/ha in 'Ramonskaya 06', 'Automonosoras' and 'IISR Comp. I' varieties of sugarbeet (Beta vulgaris Linn.). Although the total amount of root and sugar production and the N-use efficiency varied with variety, there was no differential requirement of N in the 3 varieties and 150 kg of N was optimum for root and sugar production. At this level of N, tops and roots showed 53.6 and 46.4% of total N uptake. The varieties were different in their capacity to absorb N, but were equally efficient in utilizing the absorbed N, requiring 3.16 kg N/tonne of root biomass
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