Abstract:
Bio fertilizers are low cost, renewable sources of plat nutrient. Liquid organic
fertilizer will increase the availability of nutrients in the soil. ln addition to
indispensable nutrient availability in the soil structure and soil air realty
affects the growth and development of a good plant roots. The development
of a plant rooting systems largely determines the plants vegetative growth that
will ultimately determine crop production. Jeevamrutha is the fermented
product which is used as plant growth enhancing substance. It is a rich source
of beneficial micro flora which supports, stimulates the plant growth and
helps in getting better vegetative growth and also good quality yield. This
experiment was conducted with three different applications of jeevamrutha
on Black gram (MI 1), which was compared with synthetic fertilizer. This
experiment was conducted from July to August 2021. The soil was mixed
with compost at a ratio of 2:1 and used as potting media. Five treatments with
six replicates were arranged in a completely randomized design with the
spacing of 3Ocmx1Ocm. Organic liquid mixture (jeevamrutha) was prepared
by mixing 100 L of water, 5 kg of fresh cow dung, 5 L cow urine, 1 Kg of
jaggery and 1kg pulse flour ( Gram flour) in a plastic bucket and allowed to
ferment 3 days. Treatments were Tr- once in one week of jeevamrutha
application, T2- once in two weeks of jeevamrutha application, T3- once in
three weeks of jeevamrutha application, T4- control, and T5- synthetic
fertilizer application.
The parameters measured during the experiment were number of the Iateral
roots, plant height, leaf area, fresh weight of plant, dry weight of plant, tap
root length and leaf number. The data were subjected to statistical analysis.
The results showed that there were significant differences in number of the
lateral roots, leaf area, fresh weight of plant, dry weight of plant and tap root
length at 4th weeks after planting.
The results from this showed that the growth of black gram was improved by
the application of jeevamrutha once in three weeks than the synthetic fertilizer
application. Therefore the study recommends that the application
jeevamrutha can be adapted by the farmers for black gram cultivation instead
of synthetic fertilizer because the jeevamrutha is less harmful to the
environment and less costly
