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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(11): 1958-1966
DOI: https://doi.org/10.20546/ijcmas.2019.811.229


Influence of Basal and Top Dressing Nitrogen Fertilization on Symbiotic Traits and Microbial Population in Soybean
Ritu Bhangu1*, Harpreet Kaur Virk2, Kuldeep Singh3 and Poonam Sharma2
1Department of Agronomy,
2Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana141 004, Punjab, India
3Regional Research Station, Faridkot, Punjab Agricultural University, Ludhiana 141 004, Punjab, India
*Corresponding author
Abstract:

Soybean being a leguminous crop has the ability to fix atmospheric nitrogen (N) but the crop N demand during the later growth stages is not fulfilled by biological nitrogen fixation (BNF) alone. Hence, there is a need to supply inorganic N to soybean at reproductive stages for increasing the seed yield. Therefore, this experiment was planned with the objective to study the effect of N application at different stages on symbiotic traits and biological (microbial population) properties of soil at two locations. The experiment consisted of ten treatments of nitrogen application at different stages in a randomized complete block design replicated four times. The application of nitrogen at sowing increased the nodule count and dry weight at both the locations. The symbiotic traits like nodule count, nodule dry weight and leg haemoglobin was highest in the treatment of seed inoculation (SI) + 40 kg N ha-1 at sowing which was however, statistically at par with SI + 20 kg N ha-1at sowing + 10 kg N ha-1 flower initiation (FI) + 10 kg N ha-1 pod initiation (PI). The basal application of recommended dose of nitrogen improved the nodulation, leg haemoglobin content and soil rhizobial population.


Keywords: Leghaemoglobin, Microbial population, Nitrogen, Soybean, Symbiotic traits
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How to cite this article:

Ritu Bhangu, Harpreet Kaur Virk, Kuldeep Singh and Poonam Sharma. 2019. Influence of Basal and Top Dressing Nitrogen Fertilization on Symbiotic Traits and Microbial Population in Soybean.Int.J.Curr.Microbiol.App.Sci. 8(11): 1958-1966. doi: https://doi.org/10.20546/ijcmas.2019.811.229