Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities
during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
The integrated nutrient management infuses long term sustainability in the productivity level
because of availability of nutrients in soil for next season crop. Incorporation of organic
fertilizers is a common practice to improve the yield of many fruit crops. It also limits chemical
intervention and finally minimizes the negative impact on the wider environment. The present
fruit production in India meets only the 46 percent of the total demand. Thus there is a strong
need to increase the production and productivity through crop diversification and use of best
horticultural techniques among which Integrated Nutrient Management (INM) is the one.
Therefore, the present investigation is planned with the objectives; to study the effect of INM
practices on quality and temporal behaviour of pomegranate in respect of nutrient uptake.
Methodology
The total soluble solids were determined with the help of digital refractometer and values were
corrected to 20 0 C with the help of temperature correction chart (A.O.A.C., 1975). The titrable
acidity was calculated on the basis of one ml NaOH equivalent to 0.0067 g of anhydrous malic
acid and the results were expressed as per cent acidity as per the method outlined in A.O.A.C
(1980). Colour of pomegranate juice was determined by Hunter Colour EZ Flex by extraction of
juice using juice grinder and expressed in dimensions of L*, a* and b* values (Aaby et al.,
2005). L*, a* and b* uniform colour space, L* indicates luminosity or lightness, a* chromacity
on a green (-) to red (+) axis and b* chromacity on a blue (-) to yellow (+) axis. For estimation of
macro and micronutrients status of foliage, fifty fully mature and expanded current seasons
leaves located at the 8 th position from the apex were collected all round the periphery of the plant
as recommended by Bhargava and Dhander (1987).
estimation of different plant nutrients.
Results
The standard methods adopted for
Pooled data showed that the maximum total soluble sugar (13.45 0 Brix) was recorded with INM:
FYM + Solubilizers + RDF +Umber (Ficus racemosa) Rhizosphere Hybridized Soil and found
to be statistically at par with INM: FYM + solubilizers + RDF +Antibiotics and Antibiotics
(Streptocycline) + RDF recording 12.75 and 12.69 0 Brix, respectively. The minimum
(10.23 0 Brix) total soluble sugar was recorded at Absolute control.
Titrable acidity of pomegranate fruit was significantly decreased with the application of different
organic and inorganic sources through different treatments in both the years of study. The lowest
amount of titrable acidity (0.28%) was noted with the application of INM (FYM + Solubilizers +
RDF) +Umber (Ficus racemosa) Rhizosphere Hybridized Soil.
484 | Page Sustainable soil management for resilient rainfed agro-ecosystem: conservation agriculture, organic farming, INM, soilmicroorganisms-plant
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