AGROCHEMICALS TOLERANT EFFICACY BIOINOCULANTS Vigna mungo L. HEPPER GROWTH IN NURSERY TRIALS Authors: Nathiya S , VELU RAJESH KANNAN*
ABSTRACT
The efficient bioinoculants are gaining importance in sustaining agriculture. In the present
study, to analyses the effects caused by agrochemicals and to find the best alternative
agrochemicals tolerance bioinoculants to where the crop production. Chemical fertilizers
were treated with bioinoculants at different concentrations. Decrease in growth rate of both A.
brasilensis and B. megaterium strains was observed at higher concentrations of urea and
superphosphate. Azospirillum brasilensis did not inhibit the growth of B. megaterium at coculture
conditions in well diffusion test as no inhibition zone was observed around the culture
well of A. brasilensis on the lawn of B. megaterium. Similarly, B. megaterium did not
suppress the growth of A. brasilensis. Applications of urea and superphosphate along with
adaptive bacterial Inoculants A. brasilensis and B. megaterium resulted in maximum increase
in number plant growth. After 30 and 60 days different treatments of plant growth parameters
was obtained. Chlorophyll content was increased with the application of half dose of
fertilizer. The experimental soil physicochemical properties were analyzed for 30 and 60
days,the pH, EC, calcium carbonate level, micronutrients (Fe, Mn, Z, and Cu) and
macronutrients (N, P,K) levels were increased in all treatments compared to control. Overall
results suggest application of 0.5% chemical fertilizers with bioinoculants increase the plant
growth and soil chemical profiles such as enzymes, macro and micro nutrients.
Keywords: Agrochemicals, Bioinoculants, Vigna mungo L., Azospirillum brasilensis,
Bacillus megaterium Publication date: 01/04/2020 https://ijbpas.com/pdf/2020/April/MS_IJBPAS_2020_5046.pdfDownload PDFhttps://doi.org/10.31032/IJBPAS/2020/9.4.5046