physicochemical

ANURADHA et. al.
3. The over all regression was found to be significant
at 1% level. The Multiple co-efficient of correlation
was found highly significant at all the days of
observation. R value at 30, 45 and 60 DAS explained
the variation to an extent of 75, 67 and 41%
respectively. At 30 DAS two nutrients i.e Bio-Potash
and Bio-ZincG showed significant correlation. At 45
DAS two other nutrients N and Bio-PhosG affected
the seed yield. At 60 DAS Zinc alone influenced the
seed yield. The favourable effect of use of organic
products can be explained by the presence of
aminoacids, amino nitrogen (chelated proteins) in Bio-
PhosG, glucose in Bio-PotashG which makes the
input readily available to roots and bioavailable to
plants, besides improvement in the soil microflora
due to their intrinsic organic properties. Farm
productivity improved substantially because of zinc
application as Bio-ZincG contained 50-52% organic
zinc with 6-7% bioavailable zinc. High yields in green
gram were obtained with the use of organic sources
vermicompost also reported in greengram by
Rajkhowa et al., (2003) and in blackgram by Vasanthi
and Subramanian (2004).
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