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A comparative study of nutrient management in paddy under sri and traditional methods of cultivation

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Title A comparative study of nutrient management in paddy under sri and traditional methods of cultivation
 
Creator Sureshkumar G.Janakirama
 
Contributor G.S.Dasog
 
Subject Soil Sciences and Agri Chemistry
 
Description A field experiment was conducted at Agricultural Research Station, Gangavati,
University of Agricultural Sciences, Dharwad during late rabi 2005-06 to compare the
growth, yield, nutrient uptake and N dynamics of paddy under SRI (System of Rice
Intensification) and traditional methods of cultivation as influenced by nutrient levels and
biofertilizers. The experiment was laid out on medium deep black clay soil by adopting split
plot design and the treatments were replicated thrice. The treatments consisted of two
methods of cultivation (SRI and traditional) as main plots and five fertilizer levels (100%
RDF, 75% RDF, 75% RDF + biofertilizers, 50% RDF, 50% RDF + biofertilizers) as
subplots.
Significantly taller plants, higher number of tillers and higher dry matter production
were noticed in SRI method of cultivation at all growth stages as compared to traditional
method. SRI method recorded higher grain yield and yield attributes compared to traditional
method of cultivation. Significantly higher concentration of plant N, P and K, higher uptake
of N, P and K and higher available N, P and K in soils were noticed in SRI method as
compared to traditional method. Higher concentration of NH4-N was registered in traditional
method while higher concentration of NO3-N was registered in SRI method at all depths.
Application of 75% RDF + biofertilizers resulted in significantly taller plants, higher
number of tillers per hill, highest dry matter and higher grain yield and yield attributes.
Significantly higher concentration of plant N, P and K, higher uptake of N, P and K and
available N, P and K in soil were recorded in treatment receiving 75% RDF + biofertilizers.
The same treatment also registered significantly higher readily available NH4-N and NO3-N
contents at all stages. But, the lowest values were obtained in the treatment receiving 50%
RDF.
 
Date 2016-10-25T13:45:56Z
2016-10-25T13:45:56Z
2005
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/81823
 
Format application/pdf
 
Publisher UAS, Dharwad