STUDIES ON NUTRIENT UPTAKE BY DIFFERENT VARIETIES OF SORGHUM AT VARYING LEVELS OF N AND P

N. DURAIRAJ MUTHIAH and G. RAMANATHAN

doi:https://doi.org/10.29321/MAJ.10.A02665

Madras Agricultural Journal

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STUDIES ON NUTRIENT UPTAKE BY DIFFERENT VARIETIES OF SORGHUM AT VARYING LEVELS OF N AND P

Author: N. DURAIRAJ MUTHIAH and G. RAMANATHAN,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 70, Issue: oct-oct,

DOI:https://doi.org/10.29321/MAJ.10.A02665

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Abstract

Field experiments were conducted with 5 different sorghum varieties viz., CO 18, CSH 5, CSH 6. CS 4 and composite IX with graded levels of N and P. Potassium application was common. Uptake of N was the highest at maturity stage and lowest at seedling stage. Uptake of N was more with increasing levels of N: Varietal varia- tion with regard to N uptake was also seen. Nitrogen had a favourable effect on P uptake The variety CSH 6 recorded highest P uptake. Uptake values of K showed similar trend of results as in the case of N and P.

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