National Academy of Agricultural Sciences (NAAS)
|
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 2018: 95.39 NAAS RATING 2020: 5.38 |
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.
Citations |
 |
 |
 |
 |
