Asian Journal of Bio Science

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Effect of Nitrogen on Growth, Nodulation and Seed Protein Content in Soybean


Affiliations
1 Department of Agricultural Botany, Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (M.S.), India
2 Seed Monotering Cell, Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (M.S.), India
3 Post Harvest Technology Scheme, Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (M.S.), India
     

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Replicated field experiment in F.R.B.D. was conducted during kharif 2002 to study the effect of soil and foliar application of nitrogen (N) at flowering in addition to basal N dose on nodulation, growth & seed protein content in soyabean. Plant height was significantly increased due to N application. While nodulation was significantly decreased with increased doseof N. Maximum seed protein content (%) was recorded by application of 45 kg. + 30 kg. N ha-1 at 40 D.A.S. Significantly increased and highest dry weight along with maximum Relative Growth Rate (RGR) was observed by 45 kg. N ha-1 (basal dose). Where as, significant varietal differenceswere also noted in respect of Leaf Area Index (LAI), Leaf Area Ratio (LAR) and Net Assimilation Rate (NAR).

Keywords

Soybean, Nitrogen Nutrition, Growth, Nodulation and Seed Protein.
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  • Effect of Nitrogen on Growth, Nodulation and Seed Protein Content in Soybean

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Authors

T. H. Rathod
Department of Agricultural Botany, Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (M.S.), India
Sachin Shinde
Seed Monotering Cell, Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (M.S.), India
S. D. Jadhev
Post Harvest Technology Scheme, Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (M.S.), India
A. H. Ngone
Seed Monotering Cell, Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola - 444 104 (M.S.), India

Abstract


Replicated field experiment in F.R.B.D. was conducted during kharif 2002 to study the effect of soil and foliar application of nitrogen (N) at flowering in addition to basal N dose on nodulation, growth & seed protein content in soyabean. Plant height was significantly increased due to N application. While nodulation was significantly decreased with increased doseof N. Maximum seed protein content (%) was recorded by application of 45 kg. + 30 kg. N ha-1 at 40 D.A.S. Significantly increased and highest dry weight along with maximum Relative Growth Rate (RGR) was observed by 45 kg. N ha-1 (basal dose). Where as, significant varietal differenceswere also noted in respect of Leaf Area Index (LAI), Leaf Area Ratio (LAR) and Net Assimilation Rate (NAR).

Keywords


Soybean, Nitrogen Nutrition, Growth, Nodulation and Seed Protein.