Effect of Time of Application and Organic Sources of Nitrogen
On Drymatter Accumulation and Nutrient Uptake at Different
Stages of Rice (Oryza Sativa L.)
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Author:V. Sujatha, K. Mosha, Ch. Pulla Rao and P. Prasuna Rani
p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:101, Issue:oct-dec
DOI: https://doi.org/10.29321/MAJ.10.001210
Abstract
A field experiment was conducted at the Agricultural College Farm, Bapatla during kharif 2012
to study the effect of organic sources of nutrients (poultry manure, FYM, neemcake and
vermicompost) and recommended NPK fertilisers on drymatter accumulation and nutrient
uptake of rice. The results of the investigation showed that higher drymatter accumulation
N, P and K uptake were recorded with 100 % RDN through chemical fertilisers which was
significantly followed by 100% RDN through poultry manure. At 90 DAT and at maturity,
significantly higher drymatter accumulation, yield and nutrient uptake were observed with
fertiliser treated plots, which was on a par with 50% RDN as basal+ 50% at 10 days before PI
stage through poultry manure and it is on a par with 100% RDN through poultry manure and
significantly superior to all other treatments.
Key words : Organic manures, Rice, Drymatter Accumulation, Yield, Nutrient uptake
